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Key fobs not working


pugboy
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Hello all. First post I've started on here. smile.gif

Bought a 2001 Passat for the wife last weekend at auction. Unfortunately neither key fob works. frown.gif

The button lights up on both of them so I'd guess that batteries are ok?

I have tried reprogramming as per the owners manual, but that made no odds.

I get the impression that this is a common problem so fingers crossed you guys can help.

Thanks in advance.

Adam.

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Adam - if the keys never work, perhaps the keys need to be sync'ed with the car? The instructions are in the manual and it is very easy to do. I think you press and hold the lock or unlock button for a second or so, then insert key into the driver's door lock then press the lock and unlock button again.

The keys will be desync'ed if pressed too many times away from the car.

Another possibility - especially if the key fob works occasionallly - is one of the Passat's many electrical frailties - solder joint cracking inside the driver's door. The fix for that is described here (I'm planning to try it on my car soon):

http://www.taligentx.com/passat/maintenance/doorlockmechanism/

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  • 5 years later...
Try Removing the battery and testing the battery with volt meter sould be 3 volts

529465-1.JPG

Or some key are this type

529467-2.JPG

Batteries that fit the key fobs are know as:

MAPLIN - ZB74R

IEC - CR2032

ANSI - 5004LC

DURACELL - DL2032

VARTA - CR2032

ENERGIZER - 2032

KODAK - KL2032

PANASONIC - CR2032, BR2032

RAYOVAC - CR2032

OTHERS - LF-1/2V

Edited by WhyJayDee
make it easier to understand
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