Keyless remote not working. on 2002 Audi A6 Quattro

First my keyless remote stopped working and I figured it was the battery and I wasn't in a hurry to replace it. But just the other night the actual key wouldn't open the door. What can it be?

by in Indianapolis, IN on February 28, 2011
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1 answer
ANSWER by , March 01, 2011
you key has two components: (1) remote transmitter that unlocks the doors and trunk. may use a replaceable battery; some like BMW recharge the permanent battery (2) a metal key that fits in the door tumbler and/or the ignition switch if the metal key no longer works, it could be the key is worn out or the tumbler in the door is defective. try your extra key and see if that works. also try both keys on the trunk lock. you may need a whole new key; available only from the dealer.