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rscruggs2

11-24-2013 05:50 PM

500SL check engine light

My check engine light came on for no reason. I checked the gas cap. I changed the oil last month but a maintenance wrench comes on when I start it. I ran the diagnostics and it still comes on. What else would make the check engine light to come on? There is nothing wrong with the engine????? Regards, Rick.

SRHsl600

11-25-2013 05:17 PM

The most annoying, not worthy of correction for the 600 is the MAS in the airflow chamber. I have replaced but it has a sensitivity far beyond normal, and Kansas dust will set off the CEL. I have not replaced a second time ( new was about 1K for both ). The car runs fine. An Indy cleared codes and its off for several months, but has returned ( several times)

salabellera44

11-01-2014 12:30 AM

Hi, CEL shows to call attention with wrench sign for need of maintenance. See if you get a code. You may thing of no engine problem, but it will show later what is not functioning. Goodluck!

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