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Old 01-09-2013, 08:45 PM
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Yorgi Yorgi is offline
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Location: Toronto
 
Join Date: Mar 2005
Posts: 3,509
Mein Auto: '04 M3 / '06 650i Cab
Hopefully that was a dealer giving that estimate and not an indie mechanic.

The battery costs about $215 and an indie should charge about $100 to install it, including registering the battery to the car.

The battery is massive on this car and considering the number of issues that happen when voltage drops I would not attempt to install an aftermarket battery unless you can find one with similar specs. (I have yet to see one) A large Canadian Tire Eliminator battery will not be that much cheaper than an OEM battery purchased from a dealer like Tischer.

If you can find the AGM I would go for that option. It costs a little more ($215 vs $187) but it is a much higher quality battery despite it's slightly lower specs.

If you want more info just search here for AGM and you will find many threads on the subject.
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Straight lines are for fast cars...turns are for fast drivers
'04 M3 - track
'06 650i Cab - daily driver
'02 Highlander - kid hauler
'01 330Ci - winter beater


Last edited by Yorgi; 01-09-2013 at 08:49 PM.
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