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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > M Series > E46 M3 (2001-2006)

E46 M3 (2001-2006)

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  #1  
Old 06-24-2012, 01:09 PM
robh robh is offline
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Location: nj
 
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Mein Auto: m3
Battery Replacement

Car sat for 3 months and battery dead (OEM 2005).
Was told by local mechanic that replacement had to be "synced" with car. Not sure what thats about, was looking to just pop in a Sears diehard or something similar. Any info?
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  #2  
Old 06-25-2012, 06:56 AM
Pinecone's Avatar
Pinecone Pinecone is offline
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Location: Maryland
 
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Mein Auto: M Roadster/M3
No, nothing special to do.

But be careful, the terminals are reversed compared to most batteries.

I know that AutoZoen carries a battery that will work, although it is a smaller case. The E36 has a second mounting point for the shorter case, not sure about the E46. I have put BMW batteries in the E46.

And if you leave the car for a long time, I suggest a Battery Tender.
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Terry Carraway

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  #3  
Old 06-25-2012, 07:50 AM
OBS3SSION OBS3SSION is offline
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Quote:
Originally Posted by Pinecone View Post
No, nothing special to do.
Right. The E46 does not need to have the battery "registered" like the newer BMWs. I put a new battery in my M3 last summer, and got an Interstate Battery from a local Firestone tire shop that fits perfectly and included the vent tube needed for a trunk mount battery.
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  #4  
Old 07-13-2012, 09:56 AM
robh robh is offline
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Thanks for the help
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