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Car Forum / Mercedes-Benz Cars / March 2005check engine light on 1999 E320 went on during heavy rain
Hi, When I was driving in heavy rain, the check engine light went on. The car runs normal, steady idle, good acceleration... I have read that for the older W124-model water might have corroded the 02 sensor and that cleaning it would solve the problem. Could this also happen with the W210? And where would I find the O2 sensor in this model? I also checked the fuel cap, but this seems to sit tight. I suspect water got in somehow, since the light went on right after I drove through a deep puddle. Also is there a way to read out the error codes at the car directly? thanks, FD False reading caused by water - the car runs well now, forget about it. You can read the codes with an OBDII scanner. Everyone should have one. All cars after 1996 (I think) are OBDII compatible. The connector is required to be within 3' of the steering wheel easily accessible. On my 2000 E320 it is right below the column. An good OBDII scanner can be had for $100 or less. Codes are standardizes. I have a CHECK ENGINE (known as MIL lamp) on with codes P0150 and P0155, means O2 sensor needs to be replaced. Nice to check before taking car to dealer and getting unnecessary service. Might just mean loose gas cap! Bob > Hi, > [quoted text clipped - 11 lines] > > FD Go to Autozone and pull the code from their scanner... they will lend you for free. Copy the codes down and reset the codes... if it comes back, then you got a problem (check with old codes you jot down)... if not, all is well. > Hi, > [quoted text clipped - 6 lines] > got in somehow, since the light went on right after I drove through a deep > puddle. Also is there a way to read out the error codes at the car directly? If I am not mistaken, this model and vintage vehicle has had some chronic problems with engine compartment wiring harness degrading... This could cause this type of error when water is flying around... Just a thought. Marty The stupid light went out all by itself. I guess it was the water then... Thanks for all the advice, FD |
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