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      01-13-2013, 08:37 PM   #21
Second Lieutenant
Drives: 2008 BMW 135i Convertible
Join Date: Aug 2012
Location: West Nyack, NY

Posts: 260
iTrader: (1)

Originally Posted by Tom K. View Post
I looked it up and the online '08 manual (with iDrive) says on p. 220 that the electrolyte will last the life of the battery. It says nothing about how long that battery life will be.

Average BMW battery life seems to be around 5 years, but YMMV!

Yep, looked i tup too. you're right - i completely made that up. i guess i remembered wrong.
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