Modern cars like BMW have numerous warning lights which are generally installed in the vehicle to alert the driver when something is not functioning efficiently. Among the several warning lights function in your BMW, the service engine soon light is the most important one that can alert the drivers about the sensors when they have some sort of problems. The following slide defines the causes behind the triggered service engine soon light in your BMW.
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8. Oxygen sensor can
measure the amount of
oxygen available within
the exhaust gases and
sends the data to the
ECU.
9. If the oxygen sensor of
the BMW is failed, then
too much oxygen in the
combustion chamber
can cause:
Poor engine performance
Engine damage
Activate the service
engine soon lights
12. Due to frequent driving,
the catalytic converter
can wear out in your car
that can:
Affect the engine
performance
Increase the engine
temperature
Trigger the service
engine soon light on
the dashboard
14. Mass airflow sensor can
measure the amount of
air volume that passes
through the air filter and
sends that data to the
ECU.
15. If it is failed, you will
notice numerous
problems while driving
on the road such as:
Engine stalling
Consuming more fuel
than required
Damage to the spark
plugs
Fail the catalytic
converter
Triggering the service
engine soon light
17. Thus, the gas cap is used
as a reliable sealer to
prevent dirt, dust, and
debris from entering the
tank.
18. If the gas cap is loose,
then it will force the fuel
vapors to leak and
activate the service
engine soon light.
20. If the oil level of the
engine is lowering
down, then the oil
pressure drops
automatically.
21. When the ECM is
detecting low oil
pressure in the engine, it
will activate the service
engine soon light on the
dashboard.
23. When the service engine
soon light is illuminated
on the dashboard,
follow the below steps:
Check out all the fluid
levels
Carefully inspect the
engine
Tighten the fuel tank
properly
Determine the service
history manual
24. If the service engine
soon light of your BMW
comes on, consult a
mechanic to diagnose
the activated light and
fix it immediately.