A3 Key with light, what battery does it take.

[Zenin]

So i opened up my key today, after figuring out it has a light, pressing the button a few times it felt hollow, so i opened it up to find no battery inside.

does anybody know what size button battery the key takes? the manual just says contact the audi dealer.

any help greatly appretiated.

 

[AxE]

Would it not be something like what a watch would take.

That round type.

 

[AndyMac]

Looks identical to my B5 key, it's a fat button type battery Varta V625U (twice the thickness of a normal alarm fob type battery):
http://cgi.ebay.co.uk/1-X-VARTA-LR9...e-BATTERY_W0QQitemZ400059562326QQcmdZViewItem

 

[reptor245]

Thats an audi key? i thought they was all flip key fobs?

 

[Zenin]

Thats an audi key? i thought they was all flip key fobs?

yep prob cos i got an 1.6, its not special enough to flip

Thanks a lot andymac i will try that one.