Replacing batteries in key fob?
 

Not sure where this goes and couldn't see if anyone else might have asked the question before but how do you replace the battery in the A8 key fob?

One of my W12 keys looks to be completely flat and has never worked and now I am having problems with the other...car intermittently reports key not recognised or something similar...

It looks to be the same key fob in both my 2001 S8 & 2005 W12 and reading the latter manual it says to go to the dealer?

Surely it can't be that difficult?

Great video here;

http://www.youtube.com/watch?v=lDp1W...e_gdata_player

I am guessing mine comes apart the same way but does the key/car have to be re-programmed afterwards and if so what is the procedure?

Is it different on both D2/D3 cars mentioned above?

Thanks & kind regards,
-=Glyn=-

You just pull off the plastic back.

Open the key out, and it's the bottom half of the side with the audi logo. Takes a bit of pressure, but pops off. Then a new CR2032(?) battery.

No adaptations or anything needed.

Out of interest, what does the S8 manual say?

(My trusty old PF S8 manual tells you both how to replace batteries and how to resynchronise the remote if it fails.)

Can't hurt to replace the batteries on the non-working one and test the voltage on the old ones as well.

Neither of my D3s have needed dealer visits for battery replacement in keys... Could maybe see a re-code needed if it's been flat for a long time, but should still work.

I change my batteries once a year when the car is serviced to ensure I don't have any problems. Also keep a couple of spares in the glovebox.

If its's anything like D2 then there are 2 parts:
1)remote to lock unlock(and I guess keyless for D3) which uses batteries .
and
2) immobiliser part which does not use any batteries.
Do you have problem starting car or opening/closing it?

sounds like a immobiliser not recognising key.

Well it might be different on D3.

When the battery gets low in D3 with keyless, you'll get that.. D3 with keyless also eats batteries quicker.

Also sensitive to having a phone next to them.