Question about Switchblade Key

I only have one copy of the switchblade key used to open/lock and start my car. Recently i have noticed that i more or less have to be at the door for the remote to work. Probable cause is weak battery - If i open this up and swap out the battery for a new one i just want confirmation that i am not gonna end up wiping the programming thats on this key. These things are expensive enough without having to get ure car towed to the dealer to get everything working again.

thanks for your help

I would like to know this too as I need to replace my battery.

try this link..may give you your info..

http://pics.tdiclub.com/members/schnabba/a4remote_new_print.pdf

No, replacing the battery does not wipe out the programming.

Thanks.
I just changed the battery and it works perfect.

Whatever you do, do not buy the battery from the stealer at about $ 15.00. Radio Shack or now "The Source" about $ 5.00 or believe it or not some Dollar stores carry the battery or a similar one.

excellent... i had a feeling it wouldnt wipe it but just wanted confirmation. Thanks a lot!

well i just took my key apart and was surprised to find a lot of difference compared to the write up... the key opened up the same... but different battery's and quantity too!
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The Battery's needed for this key type are CR1620 and you also need 2 of them!

guess i'll be returning the one listed in the PDF and exchanging for the above. If you have a 2000/2001 Jetta this may be the battery type your looking for!

i bought 2 for 2$ at local dollarama. Works great.

awesome thats for the heads up TDIMAXIMA i was gonna pay 5 dollars each for these... if we ever meet up i owe ya a beer!

At one time, you got 2 for 1$. Cant be to picky.