01-23-2013, 10:17 AM
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BMW CCA 1405
Location: Louisville, KY
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Join Date: Jun 2007
Posts: 469
Mein Auto: 1997 BMW Z3 1.9 5MT
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Registration electronically mates the new battery to the car's charging system and can extend the life of the new battery by charging it more intelligently.
http://www.bimmerfest.com/forums/sho...gister+battery
However, registration is not cost effective if you must buy a new battery from the dealer that costs $350 including registration. Or if you buy a $150 Duralast from Autozone and must pay a dealer $140 to register it with your car's ECU.
It is cheaper to just buy the Duralast and replace it when it goes bad in 3 to 5 years. Like we have done for decades.
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