Thread: E39 faq
View Single Post
Old 06-23-2006, 03:05 PM
lex89's Avatar
lex89 lex89 is offline
Officially Welcomed to the 'Fest
Location: New Jersey
Join Date: Oct 2005
Posts: 490
Send a message via AIM to lex89
Mein Auto: '99 528i
Key battery losing power/dead? (Black fat key, not silver triangle key)

The replacements are very cheap (I found an 8-pack on ebay for $4.00 shipped) -- CR1220 Lithium Battery.

Just use a knife to pop open the back of the batter (there's a rectangle with a little spot where you can put the knife to pop it off). Unscrew the two phillips screws (need a pretty small screw driver), and just replace the battery. Make sure you put it in right side up
Reply With Quote