The check engine light can be activated in your BMW for many reasons. A proper error code diagnosis can solve the engine issue. The problem can be associated with the catalytic converter or the EGR valve. Also, inspect the spark plugs & the MAF sensor. For detailed information, go through the following slideshow.

1. Why is Check Engine
Light-Activated in Your
BMW?

2. The first sign of an engine
problem is when the check
engine light activates on your
BMW dash.

3. Many things can cause this light
to come on; there's no single
simple explanation.

4. You will need to pull the
BMW engine's error code
with a code reader.

5. This coded feedback tells you the
problem and its origin and allows
you to diagnose proper repair.

6. Here are the common reasons
for which the check engine light
is activated.

7. Catalytic converter

8. To reduce the environmental
impact of exhaust, your BMW
uses a catalytic converter.

9. It transform carbon monoxide to
carbon dioxide and hydrocarbons
into carbon dioxide and water.

10. When catalytic converters
fail, you will need to replace
them and if you don't, your
engine will stall.

11. Exhaust gas
recirculation valve

12. The exhaust gas recirculation
(EGR) valve sends unburned
fuel back to the engine.

13. Your BMW efficiently uses fuel and
reduces its output of dangerous
hydrocarbons from unused gas.

14. A knocking sound, a check engine
light and rough idling indicate a
clogged EGR valve.

15. Spark plugs

16. Spark plugs create the spark
that ignites the gasoline in each
cylinder.

17. Your engine won't operate with
a bad spark plug, causing a drop
in performance.

18. Rough running and idle as well as
poor acceleration are also side
effects of fouled spark plugs.

19. Mass airflow sensor

20. The task of balancing the
amount of air going to
the engine comes from
the mass airflow sensor.

21. With too much air, your engine
could burn lean, not using
enough fuel and running poorly.

22. A bad mass airflow sensor will
cause the problem of too
much fuel.

23. Loose gas cap

24. A loose gas cap will cause
this light to activate on
some BMW models.

25. Tighten the cap according to your
vehicle's owner's manual to see if
that solves the problem.

26. Proper fuel system
pressurization is required to
avoid such warning signs.

27. Visit Us
https://dutchfixmycar.net/