x3

1. Technicaltraining.
Productinformation.
F25Introduction
BMWService

2. Generalinformation
Symbolsused
Thefollowingsymbolisusedinthisdocumenttofacilitatebettercomprehensionortodrawattention
toveryimportantinformation:
Containsimportantsafetynotesandinformationthatneedstobeobservedstrictlyinordertoguaran-
teethesmoothoperationofthesystem.
Informationstatusandnational-marketversions
BMWGroupvehiclesmeettherequirementsofthehighestsafetyandqualitystandards.Changesin
requirementsforenvironmentalprotection,customerbenefitsanddesignrendernecessarycontinu-
ousdevelopmentofsystemsandcomponents.Consequently,theremaybediscrepanciesbetween
thecontentsofthisdocumentandthevehiclesavailableinthetrainingcourse.
ThisdocumentbasicallyrelatestolefthanddrivevehicleswithEuropeanspecifications.Somecon-
trolsorcomponentsarearrangeddifferentlyinright-handdrivevehiclesthanshowninthegraphics
inthisdocument.Furtherdifferencesmayariseastheresultoftheequipmentspecificationsusedin
specificmarketsorcountries.
Additionalsourcesofinformation
Furtherinformationontheindividualtopicscanbefoundinthefollowing:
• Owner'sHandbook
• IntegratedServiceTechnicalApplication.
Contact:conceptinfo@bmw.de
©2010BMWAG,Munich
ReprintsofthispublicationoritspartsrequirethewrittenapprovalofBMWAG,München
TheinformationcontainedinthisdocumentformanintegralpartofthetechnicaltrainingoftheBMW
Groupandareintendedforthetrainerandparticipantsoftheseminar.Refertothelatestrelevantinfor-
mationsystemsoftheBMWGroupforanychanges/additionstotheTechnicalData.
Statusoftheinformation:July2010
VH-23/InternationalTechnicalTraining

3. F25Introduction
Contents.
1. Introduction............................................................................................................................................................................................................................................. 1
1.1. ThenewBMWX3................................................................................................................................................................................................ 1
1.1.1. Dimensions.....................................................................................................................................................................................1
1.1.2. Silhouettecomparison................................................................................................................................................. 3
2. Body...................................................................................................................................................................................................................................................................... 4
2.1. Bodyshell............................................................................................................................................................................................................................. 4
2.1.1. Introduction.................................................................................................................................................................................... 4
2.1.2. Materials..............................................................................................................................................................................................5
2.1.3. Corrosionprotectionandleakprevention..................................................................................... 7
2.1.4. Frontend........................................................................................................................................................................................... 8
2.1.5. Sideframe........................................................................................................................................................................................8
2.1.6. Roof............................................................................................................................................................................................................ 9
2.1.7. Wheelarches,front........................................................................................................................................................... 9
2.1.8. Rearend......................................................................................................................................................................................... 10
2.1.9. Reartrim......................................................................................................................................................................................... 10
2.2. Doors..................................................................................................................................................................................................................................... 11
2.3. Panoramicglasssunroof....................................................................................................................................................................... 13
2.3.1. Dimensions................................................................................................................................................................................ 14
2.4. Strength............................................................................................................................................................................................................................ 15
2.5. Vibrationsandacoustics........................................................................................................................................................................16
2.5.1. Vibrationcomfort.............................................................................................................................................................. 16
2.5.2. Acoustics....................................................................................................................................................................................... 17
2.6. Crashtestingresearch.............................................................................................................................................................................. 18
2.6.1. Preventativemeasures............................................................................................................................................ 18
2.6.2. Safetytesting/Accidentanalysis.............................................................................................................. 19
2.6.3. Head-oncollision............................................................................................................................................................. 19
2.6.4. Sidecollision........................................................................................................................................................................... 20
2.6.5. Rear-endcollision............................................................................................................................................................ 22
2.6.6. Pedestrianprotection................................................................................................................................................ 23
3. Exteriortrimsandinteriorequipment............................................................................................................................................... 24
3.1. Exteriortrims............................................................................................................................................................................................................ 24
3.1.1. Frontend....................................................................................................................................................................................... 24
3.1.2. Hood..................................................................................................................................................................................................... 25
3.1.3. Undercarriageconcept............................................................................................................................................25
3.2. Interiorequipment............................................................................................................................................................................................ 26
3.2.1. Dimensions................................................................................................................................................................................ 26
3.2.2. Materialandcolorconcept...............................................................................................................................27
3.2.3. Dashboard................................................................................................................................................................................... 27
3.2.4. Centerconsole.....................................................................................................................................................................29

4. F25Introduction
Contents.
3.2.5. Storageoptionsatfront........................................................................................................................................ 30
3.2.6. Storageoptionsinrear........................................................................................................................................... 31
3.2.7. Frontseats.................................................................................................................................................................................. 31
3.2.8. Rearseats.................................................................................................................................................................................... 36
3.2.9. Climatecontrol..................................................................................................................................................................... 36
3.3. Luggagecompartment............................................................................................................................................................................. 38
3.3.1. Dimensions................................................................................................................................................................................ 39

5. F25Introduction
1.Introduction
1.1.ThenewBMWX3
TheF25wasintroducedtotheUSmarketinJanuary2011.ThenewsecondgenerationBMWX3
buildsonthesuccessoftheoriginalbydevelopingitscorecompetencies,whileaddingnewtechnolo-
gytoestablishnewbenchmarksforagility,efficiencyandcomfort.ThenewBMWX3willbeproduced
inanexpansionoftheBMWSpartanburg,SouthCarolinaplant.
ThenewX3isavailable(atlaunch)inthefollowingmodels:
• X3 xDrive28i
• X3 xDrive35i
BMWX3
1.1.1.Dimensions
ExternaldimensionsofF25
Index Explanation Value
a Vehicleheight,empty [mm] 1661
b Trackwidthofbasewheels,front [mm] 1616
c Frontoverhang [mm] 861
1

6. F25Introduction
1.Introduction
Index Explanation Value
d Wheelbase [mm] 2810
e Rearoverhang [mm] 977
f Reartrackwidth [mm] 1632
g Vehiclelength [mm] 4648
h Vehiclewidthwithoutexteriormirror [mm] 1881
ComparisonF25/E83
F25 E83
Vehicleheight,empty [mm] 1661 1674
Fronttrackwidth [mm] 1616 1524
Frontoverhang [mm] 861 821
Wheelbase [mm] 2810 2795
Rearoverhang [mm] 977 953
Reartrackwidth [mm] 1632 1542
Vehiclelength [mm] 4648 4569
Vehiclewidthwithoutexteriormirror [mm] 1881 1853
Diameterofturningcircle(withvehiclekerbweight) [m] 11.9 11.7
Shoulderroom,front [mm] 1455 1412
Shoulderroom,rear [mm] 1423 1398
Elbowroom,front [mm] 1483 1433
Elbowroom,rear [mm] 1458 1452
Maximumheadroom,front [mm] 1033 1041
Maximumheadroom,rear [mm] 994 1002
Kneeroom,rear [mm] 61 39
Luggagecompartmentcapacity [liters] 550 480
Weightsandpayload
F25comparedtoE83
Vehicle Transmission Vehicle Payload Maxtrail-
curbweight erload
(DIN)
F25X3xDrive28i Automatictransmis- [lbs] 4112 904 3500
sion
F25X3xDrive35i Automatictransmis- [lbs] 4222 904 3500
sion
2

7. F25Introduction
1.Introduction
1.1.2.Silhouettecomparison
F25SilhouettecomparisonwithBMWX3E83
F25SilhouettecomparisonwithBMWX5E70andBMWX1E84
3

8. F25Introduction
2.Body
2.1.Bodyshell
F25Bodyshell
2.1.1.Introduction
TheF25bodyiscomprisedmainlyofstrong,lightweightmaterials.Thisisachievedwiththeintelligent
applicationofhigher-strength,multi-phasesteelsandsuper-strength,presshardenedsteels.Onaver-
age,thestrengthofthebodymaterialsusedfortheF25is27%higherthantheE83.
Theconstructionwithlightweightmaterialsmakesadecisivecontributiontoreducingtheoverallvehi-
cleweightwhichresultsinasignificantcontributiontothefollowing:
• Drivingdynamics
• Reducingfuelconsumption
• ReducingCO2emissions
• Passivesafety.
4

9. F25Introduction
2.Body
Highlights
• Highproportionofmulti-phasesteels(14%ofthebodyshellweight)
• Highproportionofpresshardenedsteels(4%ofthebodyshellweight).
Thehigher-strengthmulti-phasesteelsandsuper-strengthpresshardenedsteelsensuremaximum
strengthofthepassengersafetycellwithlowweight,thusmakingahugecontributiontopassivesafe-
ty.
Inthecaseofthepresshardenedsteels,aninnovativedevelopmentwithpassivecorrosionprotection
isused.Thisdevelopmentisunprecedentedassuitablepresshardenedsheetmetalmaterialswith
sacrificialcorrosionprotectionhavenotbeenavailableinthemarketuntilnow.Thedevelopmentof
presshardeningtechnologymeansthataseries-compatibleprocedureforthemanufacturingofgalva-
nizedpresshardenedcomponentsisnowavailable.
Duringthisprocess,galvanizedsheetsteelisinitiallycoldworkedthenheatedtoroughly1652°F
(900°C).Theyarethencooleddownrightawaytoroughly158°F(70°C)andhardenedwithinafew
secondsinthepressingtoolwithintegratedwatercoolingdirectly.Followingthisprocedure,themini-
mumelasticlimitofthecomponentsissignificantlyhigherthan1000 MPa.
Componentsmanufacturedinthismannercanbeusedinareaswheremoistureispresentwithout
corrosionofthebasematerialoccurring.Additionalcorrosionprotectionmeasuresarenolongerre-
quiredforthissteel.
2.1.2.Materials
Amodernvehiclebodymustmeetagreatmanyrequirements.Despitesmallouterdimensions,it
shouldprovideapassengercompartmentthatisalargeaspossible.Intheeventofanaccident,pas-
sengersmustbeprotectedagainstinjuryaseffectivelyaspossible.Thetorquethatisgeneratedal-
someansthatallassemblies,e.g.theengineandtransmission,relyonthebodyforsupport.Further-
more,thebodymusthavehighstaticandabovealldynamicrigidityinordertoguaranteetheoutstand-
ingdrivingcharacteristicsthataretypicalofBMW.
Lastbutnotleast,thesupportingstructureofthevehiclemustbedurableoverthelongtermand,in
theeventofanaccident,itmustbepossibleforrepairstobecarriedoutatareasonablecostandwith
aminimumamountofeffort.
Inordertomeetalloftheserequirements,BMWpursuesthestrategyofcreatingeachcomponent
fromthematerialbestsuitedforitsfunction.
Thewordsteelisultimatelyanumbrellatermthatdescribesthelargenumberofalloyswithwidely
varyingpropertiesthatareused.
5

10. F25Introduction
2.Body
MaterialqualitiesofF25bodyshell
Index Explanation
1 Multi-phasesteels(300MPa)
2 Presshardenedsteels(900MPa)
3 Othersteels(300MPa)
Multi-phasesteelsaresteelswherethestructureconsistsofanumberofphases.Examplesofhigh-
er-strengthmulti-phasesteelswithalimitofelasticityRp0.2of300to600MPaaredual-phasesteels
orTRIPsteels.Examplesofhigher-strengthmulti-phasesteelswithalimitofelasticityRp0.2above600
MPaarecomplex-phasesteelsormartensitic-phasesteels.
Presshardenedmanganese-boronsteelsaresuper-strengthsteelswithalimitofelasticityRp0.2above
900MPa.
Weightproportions
Inordertoreducethevehicleweightandstillensuremaximumstrengthofthebodyshell,thepropor-
tionofhigherorhigh-strengthmulti-phasesteelsandsuper-strengthpresshardenedsteelsusedhas
increased.
6

11. F25Introduction
2.Body
F25Bodyshell,distributionofmaterialgrades
Index Explanation
1 Multi-phasesteels(300MPa)–14%
2 Presshardenedsteels(900MPa),proportion4%
3 Othersteels(300MPa),proportion82%
2.1.3.Corrosionprotectionandleakprevention
Inordertooptimizecorrosionprotection,mainlygalvanizedsteelplatesandsheetaluminiumplates
areusedonthebody.Thejoiningtechnologiesusedareweldingandbonding.
Theoverlapsofthemetalpanelsaredesignedinsuchawaythatthejoinsurfacesareminimized.This
isdonetopreventbondlinecorrosion.Waterispreventedfromenteringthebodystructurebymeans
ofconstructivebondingandsealingofthejoinsurfaces.
Inparticularlycriticalareas,expansionfoampartsareusedtosealthebodycavitiesagainstmoisture.
Wheresheetsaredoubledupinwetchambers,thesearesealedtwiceand,ifrequired,additionally
preservedwithwax.
Whererequired,theoverlapsofthemetalpanelsindrychambersaresealedofftopreventdustfrom
entering.
7

12. F25Introduction
2.Body
Corrosion-criticalmaterialpairingisavoided.Thecombinationofmaterialsubstratesandjoiningmeth-
odsiscarefullycoordinatedtoeliminatetheriskofcorrosion.
Coatingprocess
Inthepaintingprocessintheimmersioncleaningunit,thebodyshellis:
• cleanedbyalkali
• phosphated(roughingofthesurfaceforbetteradhesion)
• coatedintheimmersionprocesswithKTL(corrosionprotectionpaintthatcoatsallthebody
cavitiesfromtheinside).
Theorganiclayerofpaintisthenannealed.
ThebodyissealedwithPVCandprotectedbyfiller,topcoatandclearvarnishontheouterskin.
WiththeF25,selectivecavitypreservationiscarriedoutinparticularlycriticalbodyareas.
Theobjectivesofthesebodytreatmentsare:
• Novisualsignsofcorrosionforfiveyearsintheareaoftheouterskin
• Novisualsignsofcorrosionintheundercarriageareaforthreeyears
• Norustdamagefortwelveyears
• Extremelywateranddusttight.
• Fordingdepthat4mph500mm/19.7inches.
2.1.4.Frontend
Fortherepairofthefrontsectionofthebody,therearenomajordeferencescomparedwiththeE83.
2.1.5.Sideframe
F25Separationpointsforrepair
8

13. F25Introduction
2.Body
Forrepair,thepreferredseparationpointslistedaboveshouldbeused.
F25Sparepartsections
Therearsidepanelisweldedtothebodyshellatthefactory.Forrepairpurposes,therearsidepanelis
bondedandriveted.
2.1.6.Roof
Theroofisweldedtothebodyshellexworks.Forrepairpurposes,theroofisbondedandriveted.
2.1.7.Wheelarches,front
Thefrontwheelarchesareweldedtothebodyshellatthefactory.Forrepairpurposes,thefrontwheel
archesarebondedandriveted.
9

14. F25Introduction
2.Body
F25Frontwheelarches
2.1.8.Rearend
TherearenomajordifferencesintherepairproceduresoftherearbodysectioncomparedtotheE83
vehicle.
2.1.9.Reartrim
Thereartrimpanelisweldedtothebodyshellatthefactory.Forrepairpurposes,thereartrimpanelis
bondedandriveted.
10

15. F25Introduction
2.Body
F25Reartrimpanel
2.2.Doors
AtrimpanelhasbeenfittedonthedoorouterskinontheF25,thisisafirstforaBMW.
11

16. F25Introduction
2.Body
F25Trimpanel,doorouterskin
Index Explanation
A F11(notUS)
B E70
1 Trimpanel(doorouterskin)
2 Doorouterskin
3 Sideframe
4 Doorseal
5 Trimpanel(entrance)
Highlightsofthisdesignfeatureare:
• Improvedaccessconvenience
• Nosoilingofclothingwhengettinginandgettingout
• Trimpanelismountedwithoutadditionalscrewconnection.
12

17. F25Introduction
2.Body
ThedooroftheF25isdrawndownfurtherthanthedooroftheE70.Anadditionalsealinglipatthe
doorouterskintrimpanelprotectslargesectionsoftheentranceagainstdirtcontamination.Thissig-
nificantlyreducestheriskofsoilingclothingwhengettinginandout.
Thetrimpanelisdesignedasasingle-shellinjectionmouldedpartclippedtothedoorouterskin.The
grainedsurfacemakesthetrimpanellesssusceptibletodamagewhencomparedtoapaintedcom-
ponent.InvehicleswiththeoptionalequipmentX-Linepackage(SA3XL),achromestripisbondedto
thetrimpanelinordertofurtherenhancetheimpactofthecomponent.
2.3.Panoramicglasssunroof
Atwo-partpanoramicglasssunroof(SA402)canbeorderedasoptionalequipmentfortheF25.The
largerglasssurfacelendsthepassengercompartmentabrightandspaciousappearance.Thisen-
hancesthesenseofspace.
Thefrontedgeoftheglassslide/tiltsunroofcoverrunsmoreorlessparalleltothewindshield/roof
edge(contourroof)whichlendsthevehicleamoreharmoniousoverallappearance.
F11,panoramicglasssunroof
13

18. F25Introduction
2.Body
Index Explanation
1 Glassslide/tiltsunroofcover
2 Fixedglasselement
3 Framewithelectricmotorforglassslide/tiltsunroofcoverandslidingtrims
4 Rearslidingtrim
5 Frontslidingtrim
6 Winddeflector
Thepanoramicglasssunroofisaslide/tiltsunroofthatrunsinwards.Theglasspanelandslidingtrim
canbeoperatedfullyelectricallyandarecontrolledaccordingtotheusualBMWslide/tiltsunroofop-
eratinglogicbymeansofaswitchintherooffunctioncenter(FZD):
• Toopentheroof:presstheswitchbackwards
• Toclosetheroof:presstheswitchforwards
• Roofinventposition:presstheswitchupwards.
ThesameoperatinglogicusedforopeningBMWpanoramicglasssunroofsisappliedtothesliding
trim.Theoperatinglogiccorrespondstothedirectionofmovementofthecomponentsandisthus
easyforcustomerstounderstand.
Toexcludetheriskofpossibleinjury,ananti-trapmechanismisimplementedforthecompletetrav-
elpathoftheglassslide/tiltsunroofcoverandtheslidingtrim.Therooffunctioncenter(FZD)cande-
tectthesuddenincreaseinthepowerconsumptionofthemotorswhichoccurswhentheglassslide/
tiltsunroofcoverorslidingtrimencountersanobstruction.Theyarethenstoppedandmovedback
slightlyintheoppositedirection.Theelectroniccontrolsystemtakesaccountofinternationallegalre-
quirements.
Byusingsuitablematerialsfortheslidingtrim,thenoiselevelwhentheglassslide/tiltsunroofcover
andslidingtrimarefullyclosedissimilartothatofavehiclewithanormalroof.
Whentheroofisopen,amesh-typewinddeflectorensuresthatbackgroundnoiseremainswithinac-
ceptablelimits.
2.3.1.Dimensions
Dimensions
• Glassslide/tiltsunroofcover,length:20.47in(520 mm)
• Glassslide/tiltsunroofcover,width:35.62in(905 mm)
• Fixedglazedelement,length:20.47in(520 mm)
14

19. F25Introduction
2.Body
Aperturesize
• Glassslide/tiltsunroofcoverfullyopened:17.12in(435 mm)
• Slidingtrimfullyopened:34.25in(870 mm)
• Ventilationgap,glassslide/tiltsunroofcover:1.14in(29 mm)
2.4.Strength
Theminimumelasticlimitisstatedasthevalueforthestrengthofthebodyshell.
TheminimumelasticlimitRp0.2referstothetension(forceperunitareainMPaorN/mm²)abovewhich
anirreversibleplasticdeformationof0.2%occurs.
Developmentofthemeanminimumelasticlimit(strength)ofthebodyshell.
Index Explanation
1 X5(E53modelyear1999)
2 X3(E83modelyear2003)
3 X5(E70modelyear2006)
4 X3(F25modelyear2010)
SoP Yearoftheserieslaunch
15

20. F25Introduction
2.Body
F25ComparisonoflightweightconstructiongradeandstatictorsionalrigidityofbodyshellwithBMWX3E83bodyshell
Index Explanation
cT Statictorsionalrigidity
L Lightweightconstructiongrade
1 E83(withoutpanoramicglasssunroof)
2 F25(withoutpanoramicglasssunroof)
3 E83(withpanoramicglasssunroof)
4 F25(withpanoramicglasssunroof)
Thestatictorsionalrigidityofabodydescribesthedegreeofdistortionaroundanaxisthroughthe
applicationoftorque.Asaconflictofobjectivesexistsbetweenlightweightconstructionandrigidi-
ty,thestatictorsionalrigiditycanneverbeconsideredinisolation,andinsteadinconjunctionwiththe
lightweightmaterialsgrade.
Thelightweightmaterialsgradedescribestheratiobetweenthevalueforstatictorsionalrigidityinre-
lationtothetirecontactpatch(toexwheelbase)andtheweightofthebodyshell(withoutdoorsand
lids).Itprovidesameasureofthedegreeofrigidityachievedforthetirecontactpatchwiththesmallest
possiblemass.
TheF25hasalightweightconstructiongradeof2.6owingtointelligentgeometricdesignoftheload
pathsandconstructionwithlightweightmaterials.
2.5.Vibrationsandacoustics
2.5.1.Vibrationcomfort
Theprerequisiteforensuringgoodvibrationalcharacteristicsofthevehicleiscarefullytargeteddesign
ofstructuraldynamicsininteractionwiththeexcitationfromthechassisandsuspension.
16

21. F25Introduction
2.Body
Toensurethis,therigidityofthebodyhasbeenfurtherincreasedbyroughly27 %incomparisonwith
theE83.
Thevibrationsinthechassisandsuspensionandcompletevehiclehavebeenharmonizedthroughse-
lectiveoptimizationoftheexcitationforcesinthechassisandsuspensionandalsothepropertiesof
thevibrationsystem.
ThismadeitpossibletocompensateforthehigherexcitationthatoccursincomparisonwiththeE83
duetotheuseofrun-flattires.
2.5.2.Acoustics
Thesoundinsulationhasasignificantimpactontheacousticsofthepassengercompartment.Effec-
tiveinsulationagainstnoiseemittedbythedrivetraincomponentsisnormallyachievedbyusingmore
weight.Tokeepthisincreaseinweightaslowaspossible,thedesigninthebulkheadareaiscondi-
tion-based.Indoingso,onlythesurfaceweightthatisabsolutelyrequired,dependingontheneces-
sarycomponents,isusedatthispoint.
Anewsoundinsulationconcepthasbeenappliedinthetransmissiontunnelarea,whichcombines
highstructuralrigiditywithahighdegreeofinsulationandsheetmetalpaneldamping.Duringthispro-
cess,sandwichpanelsaresystematicallyjoinedtogetherusingadampingmassmaterial.
F25Soundinsulationconcept
Index Explanation
1 Sheetsteel
2 Dampingmassmaterial
17

22. F25Introduction
2.Body
2.6.Crashtestingresearch
2.6.1.Preventativemeasures
Basedontheresearchdatacompiledfromracingvehicles,theextremeloadingconditionsthatoccur
inthesesituations,thefollowingmeasuresmustbetakentoenhancethepassengersafetycelland
maximizethesafetyofdrivers:
• Rollcage
• Body-contouredseatwithspecialsix-pointseatbelt
• Safetyclothingwithcrashhelmet.
PassivesafetyisanextremelyimportantissueforBMWanditscustomersontheroad,andnotjustin
racingsports.
Thefollowingcomparisonvividlydemonstratestheforcesatworkduringacollision:crashingagainsta
wallat50 km/h(31mph)isroughlythesameasfallingoutofthe4th storyofabuilding.Atthisspeed,
theseatbeltcansignificantlyreducetheriskofinjurybutcannoteliminateitaltogether.Injuriesdueto
impactwiththesteeringwheelduringseverehead-oncollisionscanbepreventedwiththeadditional
protectionoftheairbag(anidealcomplimenttotheseatbeltsystem).
Theairbag,inconjunctionwiththe3-pointautomatic-reelbelt,providesoptimumprotectioninthe
eventofahead-oncollision.Agreatdealofthoughtisrequiredindevelopingitstriggeringbehaviorto
ensureitonlyactivateswhenneeded.Smallervibrationsthatoccurwhendrivingoveralevelcrossing
forexamplemustnotcausetheairbagtotrigger.
Around14%ofallaccidentsintheBMWaccidentdatabasearesideimpactand20%oftheseside
collisionswerefatalaccidents.
Diagram–AccidentStatistics
18

23. F25Introduction
2.Body
Index Explanation
36 % Head-oncollision
14 % Sidecollision
3 % Rear-endcollision
8 % Rollovers
39 % Multiplepile-ups
Theseinsightsshowthatprotectionoftheoccupantsfromsidecollisionsneededtoimprovesignifi-
cantly.Thefirstandmostimportantmeasureneededtoprotectthevehicleoccupantsintheeventofa
sidecollisionis,andalsoremains,astablevehiclestructureinordertoreduceintrusion.
Theintroductionofasideairbag,andalsotheheadairbagfrom5/97,werefurtherstepstakentopro-
videoccupantswithoptimumprotectionagainstasidecollision.
2.6.2.Safetytesting/Accidentanalysis
BeforeanewBMWvehicleislaunchedontothemarket,alargenumberofcrashtestsarecarriedout.
Thepurposeofthesecrashtestsistoverifycompliancewiththelegalregulationsintherelevantcoun-
triesandalsoconsumerprotectionrequirements.
Crashtestsarealsocarriedoutbasedontheinsightsgainedfromaccidentresearchcarriedoutby
BMW.AccidentresearchbyBMWhasrevealedahighpercentageofhead-oncollisionswithtrees
whichiswhyBMWcarriesoutahead-oncrashtestagainstapostinordertooptimizethevehicle
structure,evenifthereisnolegalrequirementtodoso.
ThesafetyofBMWvehiclesisthereforemuchhigherthanthelegalrequirementsforsafetyworldwide.
Themostimportantcrashtestsareexplainedindetailbelow:
• Head-oncollisionaccordingtoUS-NCAP
• SidecollisionaccordingtoUS-NCAP
• SidecollisionaccordingtoUS-IIHS
• Rear-endcollisionaccordingtoFMVSS301
• Pedestrianprotection
Thetotalnumberofaccidentsrecordedintheaccidentstatisticsisdividedupaccordingtothevarious
crashsituations:head-oncollision,sidecollision,rear-endcollisionandrollover.
2.6.3.Head-oncollision
Arangeofhead-oncollisiontestshavebeendevisedinordertomakethetestingconditionsasrealis-
ticaspossible.
TheUS-NCAP(NewCarAssessmentProgram)isaconsumerprotectiontestthatplacesthetoughest
demandsonthevehiclestructureandpassengerrestraintsysteminthecontextofahead-oncollision.
19

24. F25Introduction
2.Body
Head-oncollisionaccordingtoUS-NCAP
TheUS-NCAPontheotherhandprescribesacollisionagainstarigidbarrierwithanimpactspeedof
35 mph(56 km/h)and100%offset.
Thevehicleisoccupiedbytwodummies,oneonthedriverseatandoneonthefrontpassengerseat.
However,a40%offsettestiscarriedoutintheUSAbytheIIHS(InsuranceInstituteforHighwaySafe-
ty)at40 mph(64 km/h)againstadeformablebarrier.
Head-oncollisionaccordingtoUS-NCAP
2.6.4.Sidecollision
Foursidecollisiontestshavebeendevisedinordertomakethetestingconditionsasrealisticaspos-
sible.TheconfigurationsinUSAandEuropearedifferent.
TheUS-IIHStestplacesthetoughestdemandsonthevehiclestructureandpassengerrestraintsys-
temduringthesidecollisionduetothemodifiedtestconditionswithincreasedgroundclearance.
Themainevaluationcriterionistheindividualandoverallevaluationoftheriskofinjuryforvariousar-
easofthebody.Thesetestsalsoprovideimportantinsightsintothestructuralbehaviorofthepassen-
gercompartmentunderloadsthatpartiallyoccurlocally.
SidecollisionaccordingtoUS-NCAP
TheUS-NCAPprescribes38.5 mph(62 km/h)and27 degreesastheimpactspeedandanglerespec-
tivelyofthemovingbarrier.
Thedriver'sseatofthevehicleandtheseatbehinditareoccupiedbyadummy.
20

25. F25Introduction
2.Body
SidecollisionaccordingtoUS-NCAP
PostsidecollisionaccordingtoUS-NCAP
WiththepostsidecollisionaccordingtoUS-NCAP ,thevehicleisdrivenat20 km/h(12 mph)intoan
uprightpostwithadiameterof254 mmatanangleof75degreesintheareaofthedummy'shead..
Thedriver'sseatofthevehicleisoccupiedbyadummy.
PostsidecollisionaccordingtoUS-NCAP
SidecollisionaccordingtoUS-IIHS
WiththeUS-IIHSsidecollision,adeformablealuminiumhoneycombbarrierwithagroundclearanceof
379 mmwhichismodelledonabumpercollideswiththedriver'ssideataspeedof50 km/h(31 mph).
Dependingonthewheelbaseofthevehicle,thedistancebetweenthebarrierandthefrontaxle(IRD-
ImpactReferenceDistance)varies.
Thedriver'sseatofthevehicleandtheseatbehinditareoccupiedbyadummy.
21

26. F25Introduction
2.Body
SidecollisionaccordingtoUS-IIHS
2.6.5.Rear-endcollision
TheUSlawFMVSS 301(FederalMotorVehicleSafetyStandard)isusedasthebasisfortherear-end
collisiontest.Thiscorrespondstoonevehicledrivingintoanotherstationaryvehicleat80 km/h.
Rear-endcollisionaccordingtoFMVSS301
USregulationFMVSS 301prescribesarear-offsetcrashwith70%offsetat50 mph(80 km/h)witha
movingbarrier(withmassof1368 kg).
Aaluminiumhoneycombdeformablebarrierisfittedtothebarrierwagon.
Thetestiscarriedoutonthetankfillingsideandservesasaleakagetestofthefuelsystem.Inaddi-
tion,thestructureofthevehicle,seats,rearaxleandthecomponentsintheluggagecompartmentare
testedunderthisload.
Rear-endcollisionaccordingtoFMVSS301
22

27. F25Introduction
2.Body
2.6.6.Pedestrianprotection
Pedestrianprotection
Inadditiontopassengerprotectiontests,crashtestalsoincludesapedestrianprotectiontest.During
thistest,theriskofinjurytochildrenandadultsintheeventofahead-oncollisionat40 km/h(25 mph)
isevaluated.Sheathedmetalcylindersandballsofvaryingweightsareusedasasubstituteforlegs
andheadsandshotatdefinedpointsonthefrontofthevehicle;thestressonthebodypartsismea-
sured.
Pedestrianprotection
Index Explanation
1 Leg
2 Thigh
3 Headofachild
4 Headofanadult
23

28. F25Introduction
3.Exteriortrimsandinteriorequipment
3.1.Exteriortrims
3.1.1.Frontend
ThefrontendoftheF25canbecompletelyremoved.Itconsistsofthebumper,thelights,anumberof
sensorsandcovers.
Therepairinstructionsmustbestrictlyobservedwhenremovingandinstallingthefrontend
F25Frontend
Index Explanation
1 Headlight
2 Foglights
3 Bumpersupport
4 Sensor(withSA508,ParkDistanceControl,PDC)
Thefrontendwhichincorporatescorrespondingdeformationcavitiesbelowthehood(atleast60
mm/2.36in)aswellasresilienthingekinematics,satisfiesthestringentpedestrianprotectionrequire-
ments.
Thebumpersplaytheirpartinpassiveprotectionforpedestriansduetotheirdesign,geometryand50
mm/1.98infoam.
Aweightreductionofuptoroughly4 kg/8.8lbcanbeachievedbyusingaluminiumasopposedto
steelprofiles.
24

29. F25Introduction
3.Exteriortrimsandinteriorequipment
3.1.2.Hood
F25Hood
TheHoodismadeofsteelandfeaturesdeformationelementsforpedestrianprotection.
3.1.3.Undercarriageconcept
Thevehicleundercarriagewhichismoreorlessentirelysmoothreducesdragandupwardthrust.Spe-
cificairinletsensureoptimumcoolingofcomponents.Theunderbodycoversimproveacousticsand
protectlinesandothercomponentsagainststonechippingdamageanddirtcontamination.Thispro-
tectsthebodyandcomponentsagainstcorrosion.
Changestothevehicleunderbodyoromittingtrimpanelcomponentsleadstochangesintheairflow
atthevehicleunderbody.Thiscaninfluenceroadgrip.
25

30. F25Introduction
3.Exteriortrimsandinteriorequipment
F25Underbodypanelling(X3 xDrive35ishownasexample)
Index Explanation
1 Brakecoolingairramp
2 Underbodypanelling
3 Airguide
4 Heatinsulation
5 Wheelarchpanel
Theairguidesenhancetheeffectofthesmoothvehicleunderbody.Theyreducethedragofthe
wheelsandimprovetheoncomingflowthatcoolsthebrakes.Furthermore,integratedrampsintheve-
hicleunderbodyprovideadditionalcoolingofthebrakes.
3.2.Interiorequipment
3.2.1.Dimensions
F25 E83
Shoulderroom,front [mm] 1455 1412
Shoulderroom,rear [mm] 1423 1398
Elbowroom,front [mm] 1483 1433
Elbowroom,rear [mm] 1458 1452
Maximumheadroom,front [mm] 1033 1041
Maximumheadroom,rear [mm] 994 1002
Kneeroom,rear [mm] 61 39
Luggagecompartmentcapacity(rearseatsupright) [liters] 550 480
26

31. F25Introduction
3.Exteriortrimsandinteriorequipment
3.2.2.Materialandcolorconcept
Covers
InadditiontotheclassicequipmentcolorsBlackandSavannaBeige,thematerialandcolorrangeof
theF25hasbeenextendedtoincludeRedBrown,OysterandHavanna.
Equipment Explanation
Sensatec Thisleather-likesurfacehasavibranteffectandhasanaturalappear-
ancedespitebeingmanufacturedfromsyntheticproducts.TheAmerican
nameforthesurfaceisLeatherette.
ItisavailableinthecolorsBlackandBeige.
LeatherHigh TheoptionalequipmentNevadaLeatheravailableforXmodelstypically
hasaslightlymorerobustpronouncedgrainandisimpressiveduetothe
highqualityoftheleatherandpleasanttotouch.
ItisavailableinthecolorsBlack,SandBeigeandOyster(withMojaveand
ChestnutavailableinPriority1)
Decorativetrims
Equipment Explanation
Satinsilvermatt Thissatinmattshimmeringbasestriphasacharacterfulsilverappear-
ancewithalow-keymoderneffect.
Aluminiumfinegrain Thismetalstriphasanelegantbrushedappearance,providesasporty
coolhighlightandistherightcomplimentforamoresportycombination
ofmaterials.
Finelinebeigehigh- ThisoptionalequipmenthasbeennewlydevelopedfortheF25.It'sgrain
glossfine-woodtrim containsfinestreaksandislinearinappearance.Thewarmcolorofthe
tranquilwoodgraphicemphasizeswarmthandmodernity.
FinelineWavehigh- Thiswoodinteriortrimconveysanelegantclassicyetmodernfeeldueto
glossfine-woodtrim itsspecialwavestructureanddarkcolors.
3.2.3.Dashboard
TheF25hasaone-piecedashboardwithtwo-tonePVCskin.
27

32. F25Introduction
3.Exteriortrimsandinteriorequipment
F25Passengercompartment,dashboard
Theupperpartofthedashboardisalwaysblackandthelowerpartisavailableinblackorbeige.
Highlights
• Upgradingofcoverforlightoperatingfacilityandcenterfreshairgrillewithaccenttrims
• Upgradingviadecorativetrimaboveglovebox
• Storagecompartmentincenterofdashboardfeaturespush/pushfunction(basicequipment)
• Fold-downcompartmentondriver'sside(inconjunctionwithSA493,storagecompartment
package).
Plastic,aluminiumandwoodversionsofthedecorativetrimabovethegloveboxareavailable.
Invehicleswithintegratedautomaticheatingandair-conditioning2/1-zoneIHKA(SA534),theknurled
wheelsonthefreshairgrilleareilluminatedtomakethemeasiertofindatnight.
28

33. F25Introduction
3.Exteriortrimsandinteriorequipment
3.2.4.Centerconsole
F25centerconsole
Highlights
• Cladsideedges
• Robustcupholder.
Plastic,aluminiumandwoodversionsofthedecorativetrimonthecenterconsoleareavailable.
29

34. F25Introduction
3.Exteriortrimsandinteriorequipment
3.2.5.Storageoptionsatfront
F25Storageoptionsatfront
Index Explanation
1 Storagecompartment,dashboard(standardspecification)
2 Glovebox
3 Cupholder
4 Storagecompartment,centerarmrest
5 Fold-downcompartment
Thefold-downcompartmentonthedriver'ssideprovidesanadditionalstoragesurfacewithinthe
driver'sreach.
ThevolumeofthegloveboxandstoragecompartmentinthecenterarmrestintheF25isoneliter
morethanthevolumeintheE83.
Twodrinkscontainerseachwithacapacityof650 ml,ortheplug-inashtraysavailableasspecialac-
cessories,canbeaccommodatedinthecupholders.
30

35. F25Introduction
3.Exteriortrimsandinteriorequipment
F25Foldingcompartment,front
A1.5 literbottlecanbeeasilyaccommodatedinthefoldingcompartmentsofthefrontdoors.
3.2.6.Storageoptionsinrear
A1.0 literbottlecanbeeasilyaccommodatedinthefoldingcompartmentsofthereardoors.
Bothcupholdersareintegratedergonomicallywithineasyreachinthecenterarmrest.Thesecanhold
twodrinkscontainerseachwithacapacityof650 ml/0.68qrt,ortheplug-inashtraysavailableasspe-
cialaccessories.
3.2.7.Frontseats
ThefollowingfrontseatvariantsareavailablefortheF25:
• Basicseat,electrical,driver'sseatwithmemory
• Sportsseat,electrical,driver'sseatwithmemory
Seatequipment
Optionalequipment
Sportsseatsfordriver/frontpassenger(ZMPMSportPackage) Option481
Seatheatingfordriverandfrontpassenger/Rearpassenger Option494/496
(ZCWColdWeatherPackage)
Lumbarsupport,driver/frontpassenger(ZPPPremiumPack- Option488
age)
31

36. F25Introduction
3.Exteriortrimsandinteriorequipment
Seatadjustment
Inthemaximumequipmentspecification,theseatsoftheF25canbeadjustedineightdirectionsfor-
wardsorbackwards.
F25Maximumseatadjustment
Index Explanation
1 Headrestraintheightadjustment
2 Backrestangleadjustment
3 Backrestwidthadjustment
4 Forward/backseatadjustment
32

37. F25Introduction
3.Exteriortrimsandinteriorequipment
Index Explanation
5 Seatheightadjustment
6 Seatangleadjustment
7 Seatdepthadjustment
8 Lumbar-supportadjustment
Seatadjustmentoptions Seatadjustment,electrical,
driver'sseatwithmemory
(SA459)
Seatheightadjustment electrical
Forward/backseatadjustment electrical
Seatangleadjustment electrical
Backrestangleadjustment electrical
Headrestraintheightadjustment manual
Seatdepthadjustment manual
1
Backrestwidthadjustment electrical
1
Lumbar-supportadjustment electrical
2
1
Onlyinconjunctionwiththefollowingoptionalequipment:sportsseatsfordriver/frontpassenger
(SA481).
2
Onlyinconjunctionwiththefollowingoptionalequipment:lumbarsupport,driver/frontpassenger
(SA488).
F25Seatadjustment,driver(atseat),electricalsportsseatwithmemory
33

38. F25Introduction
3.Exteriortrimsandinteriorequipment
Index Explanation
1 Backrestwidthadjustment
2 Lumbar-supportadjustment
3 Forward/back,seatheightandseatangleadjustment
4 Backrestangleadjustment
5 ButtonM(storescurrentposition)
6 Button1(callsupstoredposition)
7 Button2(callsupstoredposition)
Seatheating
ThebuttonsforoperationoftheseatheatingareintheIHKAcontrolbox.
F25IHKAcontrolbox
Index Explanation
1 Buttonforseatheating,driver'sseat
2 Buttonforseatheating,frontpassengerseat
Crash-activeheadrest
Thefrontseatsareequippedwithcrash-activeheadrestraints.Theseheadrestraintsfeatureapy-
rotechnicactuatorthatepitomizesthedistanceandheightoftherestraintinrelationtotheheadin
theeventofarear-endcollisionofsufficientforce.Thisreducesthestressintheregionofthecervical
spineduringarear-endcollision.
Iftheactiveheadrestraintshavebeentriggered,thepyro-actuatorsmustbereplacedinthe
workshop.Itisessentialtorefertotherepairinstructionsplease.
34

39. F25Introduction
3.Exteriortrimsandinteriorequipment
Seatorheadrestraintcoversoraccessoriesformountingontheheadrestraintthatcouldre-
ducetheprotectiveeffectmustnotbeused.
F25Crash-activeheadrest
35

40. F25Introduction
3.Exteriortrimsandinteriorequipment
Index Explanation
A Drivingposition
B Supportactivated
C Crashposition
1 Support,upperpart
2 Tensionspring
3 Support,lowersectionwithpyrotechnics
Theheadrestraintsareadjustedviapreloadedtensionsprings.IftheACSMdetectsarear-endcolli-
sion,thepyrotechnicactuatorsareactivatedandthepreloadedtensionspringsarereleased.
3.2.8.Rearseats
Passenger-compartmentspaceincomparisonwithE83
• Widerpassengercompartment
(rearseatpassengerssit20 mm(0.78in)furtherapartwhichprovidesmoreroomforshoul-
dersandelbows
• Significantlymorekneeroom
• Rearseatpositionraisedby8mm90.31in)inrelationtofrontseat
• Thewaistlineis11mm(0.43in)lowerwhichsignificantlyimprovesthefeelingofspacewhen
comparedtocompetitormodels
• Isofixonleft/right(formaximumof2childseats).
Equipment
Rearseatheating(SA496)andathrough-loadingsystem(SA465)withseparatefoldingcentersec-
tionand40/20/40divisionareavailableasoptionalequipment.
F25Rearseatbackrest
3.2.9.Climatecontrol
IHKAisstandardfortheF25.
36

41. F25Introduction
3.Exteriortrimsandinteriorequipment
F25Controlpanelof2/1-zoneIHKA
• 2/1-zoneIHKA
Thefirstnumberdenotesthenumberofcontrollabletemperaturezones(temperatureselectorwheels)
andtheseconddenotesthenumberofcontrollableairvolumeandairdistributionzones(separatefan
settings).
The2/1-zoneIHKAthetemperaturecanbecontrolledonthedriverandpassengersideseparately.
WhentheALLbuttonofthe2/1-zoneIHKAispressed,thecurrenttemperaturesettingsonthedriver's
sidearetransferredtothefrontpassengerside.
The2/1-zoneIHKAalsofeaturesautomaticairrecirculationcontrol(AUC).Thismeansthatfreshair
containingodorsorpollutantsisblocked.Theinteriorairisthenrecirculated.
Equipment
IHKA
2/1-zone
Separatetemperaturecontrol,frontleft/right Yes
Independentventilation Yes
Anti-misting Yes
Automaticairrecirculationcontrol(AUC)(includingmicrofilter) Yes
Individualautomaticcontrolwith5 intensitylevels Yes
Solarcompensation Yes
ALLfunction(driver'ssettingsaretransferredtofrontpassenger) Yes
Highlights
TheF25featuresrapidcoolingandheatingbehaviorwithagreaterdegreeofcomfortintermsof
acousticsandlevelofcustomization.
• optimizedairflowrate
37

42. F25Introduction
3.Exteriortrimsandinteriorequipment
Foraheating/air-conditioningunitinthisclass,itdeliversoutstandingperformance.Theentire
volumeofairinthevehiclecanbereplacedupto3timesaminute.
• Fresh/recirculationairisfilteredthroughinteractionwithautomaticairrecirculationcontrol
sensor
Thequalityoftheintakeairismonitoredcontinuouslybyanautomaticairrecirculationcontrol
sensor.Thisensuresthatpollutantsdonotenterthepassengercompartmentwhendriving
intownsorthroughtunnels.Theincomingfreshairisalsocleanedbyacarboncanister.With
theairrecirculationfunction,airisalsofilteredinordertopreventsoilingoftheheatingandair
conditioningsystemcomponentsandpassengercompartmentandalsotoensurehygienic
operation.
• Solarandcondensationsensor
Acombinationsensorintegratedintothemirrorbasedeterminestheangleofincidenceand
theintensityofsolarradiation.ThismeansthatalthoughsolarradiationispresenttheIHKA
canmaintainanevenandpleasanttemperatureinthepassengercompartment.TheIHKAcan
reliablypreventfoggingofthewindowglassthroughselectivecontrolinterventionbymeasur-
ingthesurfacetemperatureofthewindscreenandairhumidity.
• Climatestylesandlayeringfunction
WhentheIHKAisinAUTOmode,thecustomercanadjusttheamountsofairaccordingto
hisindividualcomfortrequirementsusingfivedifferentclimatestyleswithoutexitingAUTO
mode.Theventilationtemperature(oncomingflowatupperbody)canbeadjustedindividually
viathelayeringfunction.
3.3.Luggagecompartment
Theluggagecompartmentcapacityis550liters.Theluggagecompartmenthasenoughspaceforfour
golfbagsorthreemountainbikes(forexample),aswellasthreeoccupants.
Highlights
• 12 V chargingsocketunderloadingfloor,e.g.forthestorageofcompactelectronicequipment
inaconcealedareacombinedwithchargingoptionforwhenthevehicleisinmotion(incon-
junctionwithSA493,storagecompartmentpackage)
• 12 V chargingsocketintrimpanelofluggagecompartmentonright
• Foldingandremovablecollapsiblebox,whichcanbestoredbelowtheloadingfloor(incon-
junctionwithSA493,storagecompartmentpackage)
• Flexiblestoragenetforthreedifferentattachmentpositionsincludingpocketfunction(incon-
junctionwithSA493,storagecompartmentpackage)
• Scratchandwear-resistantstainlesssteelloadingedge(inconjunctionwithSA3XL,X-Line
package)
• Luggagecompartmentseparationnet(SA413):therollerblindcassettecanbeunlockedat
thepushofabuttonwhichrepresentsasignificantimprovementintermsofcomfort.
38

43. F25Introduction
3.Exteriortrimsandinteriorequipment
3.3.1.Dimensions
F25Dimensions,luggagecompartment
F25 E83
Widthofluggagecompartment atnarrowest [mm] 1100 954
point(1)
(betweenwheelarches)
Widthofluggagecompartmentatwidestpoint [mm] 1200 1339
Luggagecompartmentopening(2) [mm] 914 937
Heightofopeninginbody(3) [mm] 812 846
Widthofrearopening–top [mm] 1010 1005
Widthofrearopening–bottom [mm] 1112 1125
Heightofloadingedgeaboveroadway (4) [mm] 680 659
Step,loadingedgetoloadingfloor [mm] 13 12
Lengthofluggagecompartment floor(5) [mm] 952 972
Lengthofluggagecompartmentfloor [mm] 1759 1710
(withfolddownrearseatbackrest)
Heightofluggagecompartment (6) [mm] 807 911
Heightofluggagecompartmentbelowroller [mm] 461 461
coverforluggagecompartment
Luggagecompartmentcapacity [liters] 550 480
Luggagecompartmentcapacity [liters] 1600 1560
(withfolddownrearseatbackrest)
39

44. BayerischeMotorenwerkeAktiengesellschaft
HändlerqualifizierungundTraining
Röntgenstraße7
85716Unterschleißheim,Germany