what does it mean when check engine light is on?
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2006 Mercedes-Benz E350 Question: Engine Light
Bret Bodas from RepairPal Test Shop, October 08, 2009, 12:05Master
This means that your engine management computer has detected a fault that is affecting the emissions of your vehicle, and it may or may not affect the performance of the vehicle.
You will need to have the computer scanned to read the diagnostic trouble codes that are stored, then based on the codes, a diagnostic test will need to be performed.
Check your fuel filler cap, make sure it isn't loose or left off, this will cause the light to come on. If the engine performance is poor, then you should avoid driving the car and get it checked as soon as possible, otherwise further damage can result.
You can also learn more here: http://repairpal.com/check-engine-light
Answer #2sinautoscan.com October 08, 2009, 13:11Master
engine management computer has detected a fault that is affecting the emissions of your vehicle, and it may or may not affect the performance of the vehicle.