Mass airflow sensor (MAF) sits between the air filter and intake manifold of the engine. It calculates the mass of air that enters the engine and feeds that data to the engine control module. The ECU uses this data to stabilize the air-fuel ratio within the combustion chamber of the engine. Inaccurate data provided by a bad MAF sensor can cause engine seizure in your BMW x5.

1. How To Tell If Your
BMW X5 MAF
Sensor Is Failing?

2. What’s a MAF
sensor?

3. It stands for Mass Airflow
Sensor.

4. Its job is to quantify
the air entering the
engine.

5. The ECM uses this data to
determine the amount of
fuel that needs to be
injected into the engine.

6. A bad MAF sensor can
make your BMW X5
unroadworthy.

7. BMW X5 MAF
Sensor Failure:
Causes

8. Following reasons are
predominantly responsible for
MAF sensor failure in BMW X5:-
 Airborne contaminants
 Disconnected wires
 Defective measuring elements
 Short circuit
 Lifespan

9. BMW X5 MAF
Sensor Failure:
Symptoms

10. Hesitates to accelerate

11. Sluggish acceleration
indicates that your BMW
X5 engine is starving for
fuel.

12. It happens when the ECM
restricts the fuel supply to
the engine due to inaccurate
MAF sensor data.

13. Engine won’t start

14. Restricted fuel supply due
to a bad MAF sensor
makes it difficult to start
the engine.

15. You might be able to crank
the engine, but it won’t
start.

16. Malfunction indicator lamp is
on

17. It is one of the
indisputable signs of a
problematic MAF sensor
in your BMW X5.

18. A defective MAF sensor can
make the engine run rough
and struggle to accelerate.

19. When the computer
detects the issue, it
would immediately turn
on the check engine light.

20. Black exhaust smoke

21. The emergence of black
exhaust smoke instead of
thin white smoke is another
sign of a bad MAF sensor.

22. Combustion of the too-
rich air-fuel mixture is the
reason behind the
appearance of this
exhaust smoke.

23. Bad gas mileage

24. Inaccurate data provided by
a bad MAF sensor make the
ECM dump more fuel than
needed.

25. As a result of this, fuel
consumption would
skyrocket.

26. Key Takeaways

27. A bad mass airflow sensor
can put the ECM in jeopardy.

28. So, if you are noticing
signs of a faulty MAF
sensor in your BMW X5,
get it replaced.

29. EBB
https://www.elitebmwbenz.com/
/Elite-BMW-Benz-Mds-455517011861287/
/elitebmwbenzmds/