Question about 2002 Mercedes-Benz C-Class

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One key doesnt work, has a new battery. Passenger door never locks.

One of my remotes does not respond at all, I replaced the batteries but no help. I have put it into the ignition and started the car but it wont open any doors. This is a wagon, so no trunk.
The passenger front door will not lock or unlock, when driving away it tries 3-4 times to lock but fails. Also there is a light on that says "1 malfunction". The telephone system is not hooked up I guess and there is no phone so that Tele-Aid message always displays too.
Any ideas? I bet the door lock problem is due to needing a new actuator??? Thanks, Samantha

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It's posssible that the key will need a recode - even though it has a new battery. I had the same with an Audi. Took it to a friendly dealer who gave it the code and away I went !

Posted on Nov 04, 2008

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