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      01-12-2020, 09:35 PM   #4
Whipple
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Drives: 2015 BMW M6 Gran Coupe
Join Date: Jun 2011
Location: New York

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Quote:
Originally Posted by RagtagXMASTER View Post
Well it was a day that was unavoidable. My battery in my M6 was dead. I bought a odyssey battery group 49-950 from FCPeuro and decided to take a few pictures and capture the results. The battery is a little shorter than the BMW battery, but fits and the hold down engages it although its not great. I also think my car had a couple battery drains on it from my exhaust controller and CTEK battery sense.

If anyone wants instructions.

It is pretty easy to do the replacement. undo the bracee held down with 13mm bolts. undo the negative post, 8mm. unplug all the cables on the battery distribution box that plug into it, you can leave the two other bolted on cables connected. undo the 13mm bolt holding the distribution box to the battery terminal post. move the distribution box out of the way, undo the 8mm on the positive post. remove the battery and replace. do all the steps in reverse order to connect it back up.
I just changed mine a few months ago but I used the factory battery from BMW parts local.The battery was 250 bucks and I registered it with the icarly app,

This was my problem was the exhaust controller for the Meistershaft exhaust ,I initially had it on the wrong fuse giving me battery drain, how I figured it out was when I installed the new battery I had to hook up the ground wire for the controller back on the bolt I used I noticed a spark when connecting, right there told me there was a load on the battery when the car was off, so Im pretty sure I swapped a perfectly good battery,You should relocate your fuse to a key switch on fuse with a piggy back fuse in the fuse block in the rear
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2015 M6 Gran Coupe> DME stage 3 tune back end flash>JB4 with Methanol control>Fabworx Catless downpipes>Full Meistershaft GTC exhaust 102mm GB tips>Built motor with Forged Cp Carillo Rods and Pistons > SSP spec X clutch > Stage 1 Pure Turbos>PG front mount intakes>PG charge coolers>Vorsteiner front and rear Carbon diffuser>Auto Tecknic Carbon shift paddles>3D Design aluminum pedals
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