BMW Drivetrain
Malfunction:
Symptoms,
Diagnosis, &
Solutions

The drivetrain is not a
solitary part…

The following
components are
collectively
referred to as the
drivetrain.
The transmission
Differential
Driveshaft
CV joints
Drive wheels etc…

Drivetrain-related issues
can cause your BMW to stop
midway.

BMW Drivetrain
Malfunction Signs

Are you
experiencing
any of the
following
issues while
driving your
BMW?
Drivetrain malfunction
error message on iDrive
Transmission fluid
leak
Rough engine idle
Unusual shaking
sensation
Stalling & misfire
Excess exhaust smoke
Trouble starting the
engine
The engine keeps cutting
out

If so, your drivetrain has probably malfunctioned.

BMW Drivetrain Malfunction
Causes

BMW drive train can start acting up due to any
of the following reasons;

Reason #1-
Defective spark
plugs

Spark plugs help ignite the
air-fuel mixture within the
cylinder.

Drivetrain error will occur if
one of the spark plugs on
your BMW goes bad.

Reason #2- Broken
fuel injector

Fuel injectors ensure
controlled spraying of
fuel vapor into the
cylinders.

If one of your BMW’s fuel
injectors goes kaput, the
engine will perform poorly.

And, yes… the drivetrain
will act up.

Reason #3- Fouled
high-pressure fuel
pump

HPFP maintains high
pressure within the fuel
rail.

The engine will perform poorly if
there is something wrong with
the HPFP.

As a result, the drivetrain
malfunction error may
occur.

Reason #4-
Damaged catalytic
converter

This may sound highly
unlikely... but, it's true.
• A clog in the catalytic
converter can cause
the back pressure to
increase.

Deterioration in engine
performance due to this
reason can cause
drivetrain failure.

So, The Bottom Line Is…

Drivetrain malfunction in a vehicle
has all sorts of causes.

If you want your BMW’
drivetrain to function
smoothly, ensure its upkeep.

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