Bimmerfest - BMW Forums - View Single Post - Successful DIY battery replace, is BMW registration necessary ?
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Old 05-10-2012, 09:52 PM
itscoo2pyopants itscoo2pyopants is offline
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Location: Kent, WA
Join Date: Nov 2006
Posts: 75
Mein Auto: 04 325ci, 05 4.8is, 09 M3
I'd like to save a couple bucks if I could.

Dealer quoted me 1300 to replace secondary air valves.. I did it myself and paid for $200 in parts.

They quoted me 1100 for a Guibo, again did it myself for $170.

If the only problem with not registering the battery is shortening the life of the new battery, I can buy 3-4 batteries for the price of 1 with registering. Just wanted to check in with the people above that are running aftermarket batteries with no problems.

Is it really worth $100 for installation? 2 bolts right?
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