Presentation on 4 weeks summer training at Mercedes
Northern India engineering
Silver Arrows, Noida
A BRIEF COMPANY INTRODUCTION
founded in 1881 by Karl Benz and Gottlieb
Mercedes-Benz is the brand name owned
by Daimler AG and its headquarters is at
Its Product line consists of Luxury cars,
buses, trucks, high performance internal
Mercedes-Benz was previously owned by
It was formed by the merger of Karl Benz
and Gottlieb Daimler's motor car
Karl Benz engineered the first petrol-
powered car and formed the Benz
motorcar company i.e. Benz Patent Motor
wagon in January 1881.
The first Mercedes-Benz brand name
vehicles were produced in 192
PURPOSE OF SUMMER TRAINING
An internship can be of considerable benefit to you in
Introduce you to potential future work environments
Acquire important supplementary skills
Make it easier for you to find work
A cross-over point between university and career
Real time evaluation of thyself
WORK SHOP STRUCTURE
There are 4 divisions in shop for carrying out the
various operations on vehicle. These are :
separate group of professionals are assigned in each
section and they work as an integrated unit each
relating to one another
In service shop, various mechanical tasks are
carried out and customers complaints are looked
into. This may include :
Regular maintenance (servicing)
Replacement of brake pads
Checking of various fluids in the vehicle such as
engine oil, washer fluid, coolant etc
Various filters viz. air filter, A/C filter, oil filter
Customer’s concern may include..
Lights not working(both head and tail)
A/C not cooling enough
Low pick up
Noise while applying brakes
Tight steering wheel etc.
All the problem areas are thoroughly checked
both by the technician and a computer system
called STAR using XENTRY software. the faulty
part is replaced after taking the customers
A V6 PETROL ENGINE
A V6 petrol engine is shown here. There are 3 ignition coil on either side for the six
cylinders. Oil filter cap, washer fluid, coolant and engine oil cap are also visible.
The square shaped plate in the middle is the ECM(engine control module) which is
responsible for actuating various mechanism when something unusual is detected.
Serpentine belt is a common a belt that powers the auxiliary components a
vehicle such as alternator, oil pump, compressor etc. The main drive comes
from the engine and hence it uses a fraction of power produced by engine. It
may be located in front or side . Now-a-days rear of the engine is commonly
AN INLINE 4 CYLINDER CDI ENGINE
CDI (common diesel injection) engine. As we can there is a common rail the feeds
the fuel into the combustion chamber. There are no ignition coil and spark plug
present in diesel engine and combustion takes place due the compression of fuel.
ENGINE WITH TURBO CHARGER
Turbo charger thrusts the air into the cylinder at high temperature and
pressure so as to improve the combustion. Its compressor is run by exhaust
gases as they posses a considerable amount of energy
A ventilated disc is shown here. The
purpose of the brake is to stop a vehicle
and here it is achieved by pressing the
brake pad held in the caliper against a
disc that revolves along with wheels.
The thickness of the pad and disc are of
utmost importance for the proper
functioning of the brake and hence these
are properly checked.
BRAKE CALIPER AND DISC
This is used to charge the battery in
case the voltage is below the
A battery plays a very important part in
running the vehicle including starting
the engine and providing current for all
the electronic circuitry of vehicle
SOME SPECIAL TOOLS
ratchet Torque wrench
These are some special tools that proves to be very helpful. Torque wrench
is used to give certain amount of torque to the bolts and nuts such as wheels
so that they are neither too tight nor loose.
BRAKE FLUID MACHINE
Bleeding process is shown. An incompressible fluid is used in actuating the
piston pads against the revolving disc to halt the vehicle. It is very essential
that no bubbles are present in the hose pipes as that leads to poor braking.
Star is used to check all the control units in the vehicle and it also shows the
faults if any. It contains all the details of the all the mercedez benz vehicle
and hence it is also used to refer when some major dismantling is to be
done. It helps the technician to update and reprogram the control units.
Its reports are attached with the vehicle report and vehicle is cleared only if
the xentry report is okay.
STAR AND XENTRY
SOLENOID PRESSURE VALVE AND ATF
ATF (automatic transmission fluid) is used in gear box. Its main function is
to lubricate the gear box and also acts as a coolant.
Solenoid pressure valve helps in shifting the gears. They form a part of
automatic gear shifting the results as speed increases and decreases.
This is very helpful particularly in traffic as it saves you the headache of up
shifting and down shifting.
Air filter Oil filter
Filter are of various shapes and sizes depending upon the requirement of the
vehicle. Air filter cleans the air the air that goes into the engine cylinder and
Oil filter is for engine oil.
Wheel balancing is necessary for stability of the vehicle and proper handling.
Engine mounting is place just below the engine in order to isolate the
vibrations from the engines to the chassis.
The fuel injectors are used to spray fuel into the cylinders. Spraying the fuel
improves combustion and hence the efficiency.
A/C MACHINE AND COMPRESSOR
The compressor is run by the engine (serpentine belt) and thus helps the
a/c to produce cool air. The machine on the left is used to take the gas out
or put into the compressor.
BODY SHOP TOOLS AND EQUIOMENTS
These are the various tools which are used in the shaping of the vehicle
If there is a dent on the fender, doors, hood etc. then they are brought back
to the original shapes.
After that polishing of the parts is done.
These are the air matic suspension that lowers down the vehicle as its speed
increases with increase ride comfort and the stability
In the exhaust system, catalytic converter is installed to prevent the harmful
gases such as SO2 NO2 NO3 etc. sensors to sense the presence of
oxygen in the exhaust gases is also present and hence correct the air/fuel
mixture with the help of ECM.
First , a very sincere thank you to the silver arrows who provided me this
opportunity to do training in their workshop. It was a great learning curve for
me. Exposed to the real life work environment, I gained a lot from everyone.
The technicians here were really helpful and supporting as they satisfied every
doubt that I raised to their best potential.
It was a great pleasure working with them.
The experience I gained was priceless and I am sure that the month I spent
here will help me prepare for the future.
With that I end my presentation..