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Car Forum / Mercedes-Benz Cars / March 2008Check Engine Light
I have a 1999 C280. The check engine light seems to come on when the gas tank gets down to about half full. The light goes out when I fill the tank. The car has no other symptoms. What is going on? and how do I fix it? Thanks, EJ in NJ Ernie Willson schrieb: > I have a 1999 C280. The check engine light seems to come on when the gas > tank gets down to about half full. The light goes out when I fill the > tank. The car has no other symptoms. What is going on? and how do I fix it? Read out the specific errorcode. Probably you will find an fuel gauge sensor error.  SignatureRoland Franzius Roland, Thanks for the reply. How do I read out the error code? Regards, EJ in NJ > Ernie Willson schrieb: >> I have a 1999 C280. The check engine light seems to come on when the [quoted text clipped - 4 lines] > Read out the specific errorcode. Probably you will find an fuel gauge > sensor error. > Roland, > Thanks for the reply. > How do I read out the error code? > Regards, > EJ in NJ If you have the digital climate control, you can read it there: http://kropf.net/w202/#CCerrs Kenneth, Thank you for your reply, and the link. I read the information from the link and went through the statistics check (#CCstats), and the read error codes (#CCers). Everything went according to the instructions in the link. The "check engine" light was on prior to the check and after the check, and yet the checkout indicated that there were no errors. Can you/anyone tell me what this means? 1999 C280 Sport Thanks EJ in NJ >> Roland, >> Thanks for the reply. [quoted text clipped - 5 lines] > > http://kropf.net/w202/#CCerrs "Can you/anyone tell me what this means?" Hahahahahahahahahahahahaahhahaehehhehehehehehehehahahahahahahahohohohhohhohoooooo .... whew! Haven't had that good a laugh in a while ! On a Mercedes a check engine light on means it is time to go to the stealership and get it turned off and pay for it. And then go back to get it turned off again and pay for it. And the go back to the stealership to get it turned off again and pay for it. And then .... > Kenneth, > [quoted text clipped - 5 lines] > on prior to the check and after the check, and yet the checkout > indicated that there were no errors. Well, first of all, a humble apology, the link I provided you with does not show CEL codes. I had copied that link from one of the boards I frequent, and had not tested it myself. That procedure provides Climate Control diagnostics, not the engine's. Look at the bright side, you now know how to get diagnostics for the climate control system. In the mean time, either buy an ODBII code reader, or have the code read for you. Many stores, ie Autozone, will read the code for you for free. It looks like Autozone is the place for me. Thanks, EJ in NJ >> Kenneth, >> [quoted text clipped - 14 lines] > In the mean time, either buy an ODBII code reader, or have the code read > for you. Many stores, ie Autozone, will read the code for you for free. There was a time where contaminated gas was sold... and the result was bad fuel gauge sensor... a couple of years ago, I think. Have you tried replacing your fuel cap to see if this solve the problem? If this still does not fix it, try a big bottle of fuel injector cleaner in the tank to see if it clears out the fuel gauge error. Tiger Thanks for your comments This morning I had the annual New Jersey Auto inspection. The "check engine" light was out. As part of the Inspection they check the gas cap. I guess it was OK since they passed the car. Driving home the "check engine" light came on again. EJ in NJ > There was a time where contaminated gas was sold... and the result was bad > fuel gauge sensor... a couple of years ago, I think. > > Have you tried replacing your fuel cap to see if this solve the problem? If > this still does not fix it, try a big bottle of fuel injector cleaner in the > tank to see if it clears out the fuel gauge error. You can go to the Autozone and get their OBD II Scanner and hook it up to your car to get the readings. They loan it out for free. Thanks for the info. I'll try it. EJ in NJ > You can go to the Autozone and get their OBD II Scanner and hook it up to > your car to get the readings. They loan it out for free.
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