Check engine light reset - MBWorld.org Forums

Nov 13, 2003 | 10:35 PM

amgmercedes

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Check engine light reset

My 93 E420's check engine light has come on, is there a way I can reset this myself before I pay the dealership to reset it for about $40?

It came on when I forgot to re-connect the sensor on the plastic cover behind the driver's side headlight after removing it to replace a bulb.

Nov 14, 2003 | 07:19 AM

GDawgC220

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From: Boston

'05 A4 1.8TQM6

Re: Check engine light reset

Quote:

Originally posted by amgmercedes
My 93 E420's check engine light has come on, is there a way I can reset this myself before I pay the dealership to reset it for about $40?

It came on when I forgot to re-connect the sensor on the plastic cover behind the driver's side headlight after removing it to replace a bulb.

Disconnect the battery for about 1 minute and plug it back in. The light should go away when you start up again.

-G-

Nov 14, 2003 | 10:38 PM

amgmercedes

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Tried that already, even unplugged it for an entire day. Didnt work.

Thanks anyway.

Nov 14, 2003 | 11:11 PM

SLCPUNK

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I reset mine by taking off the neg battery cable. Or you can go to AZ and they'll reset it for free with their OBDII scanner. I pull codes there all the time for free.

Nov 18, 2003 | 02:17 AM

SLCPUNK

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oops. I see that it is a 1993 so obdII would be out of the question. Sorry.

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