Question about 1997 Mercedes-Benz E-Class

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We are having a problem with the keyless entry for mercedes e420...the battery was dead and now it will not work any suggestions?

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Carlos Jaen

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Not familiar with mercedes, but if it works like many other brands, the receiver unit in the car "forgot" the code when battery died. There is a procedure in owners manual for receiver to relearn the code transmitted by the key. When you do this, dont forget to repeat the procedure for the secondary key.

Posted on Dec 04, 2009

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