What Does Your Mercedes-Benz Check Engine Light Mean

The check engine light in a car can be triggered by any number of reasons- malfunctioning ignition system being the prime one. Therefore, if your Mercedes-Benz check engine light is illuminating, the first thing you should do is to check its spark plugs. If the spark plug and other ignition system components are working fine, call your mechanic right away so that the issue can be diagnosed further.

1. What Does Your Mercedes-Benz Check Engine Light Mean?

2. ‘Check Engine Light’ (CEL) or ‘Malfunction Indicator Lamp’ (MIL) is a warning sign.

3. On-board diagnostic system uses this light to tell you that get your car checked out.

4. Listed below are a few reasons why your Mercedes CEL may come on.

5. Mercedes-Benz check engine light Flashing- Causes

6. Failing Ignition System

7. Flawed ignition system components can prompt the ECU to turn on CEL in your car.

8. If you don’t address the issue on time, you might end up damaging the engine.

9. Incorrect Air-To-Fuel Ratio

10. Another major reason why your CEL may come on is- the abnormal air-to-fuel ratio.

11. Ignoring this issue might adversely affect your Mercedes fuel economy.  

12. Issues With The Exhaust System

13. The exhaust system serves to remove the byproducts of the engine operation.

14. Additionally, it makes sure that your car engine is breathing smoothly. 

15. Increased back-pressure due to a faulty exhaust system can persuade the ECU to turn on the CEL.

16. Malfunctioning Sensors And ECU

17. The ECU employs an array of sensors to regulate different aspects of the engine operation.

18. If anything goes wrong with it, you may expect your car CEL to come on.

19. Failing Emission Control System

20. Another major reason why your CEL may come on is- a malfunctioning emission control system.

21. If you don’t fix the problem on time, your Mercedes might fail an emission test.

22. Summing Up

23. Lit-up CEL in your Mercedes-Benz is essentially a sign of trouble.

24. Triggered by the onboard computer, CEL warns you that there's something wrong with your car.

25. All you have to do is to call your mechanic so that the exact issue can be diagnosed.

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