M-Class (W163) Produced 1998-2005: ML 230, ML 320, ML 350, ML 400 CDI, ML 430, ML 500, ML 270 CDI

Battery disconnect cleared it

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Old 03-10-2004, 02:02 AM
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Battery disconnect cleared it

I did the battery disconnect and it cleared the CEL. It did return a day later, but I assume that it is due to the fault still being present and clearing the error code with an OBD II reader would have the same result.

I don't think I want to invest $130 in an ODB reader, but we'll see.

- Mark
Old 03-10-2004, 12:23 PM
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'05 A4 1.8TQM6
Re: Battery disconnect cleared it

Originally posted by markjenn
I did the battery disconnect and it cleared the CEL. It did return a day later, but I assume that it is due to the fault still being present and clearing the error code with an OBD II reader would have the same result.

I don't think I want to invest $130 in an ODB reader, but we'll see.

- Mark
Yup, if you unplugged it and it comes back, there's a problem somewhere. I'd take it into the dealer to have it checked out because it can potentially cause more problems down the road if you don't take care of it. Good luck!

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