How to replace battery

kencel1 · 06-08-2008, 08:21 AM

Taught it was gonna be one simple diy to replace battery but found these plastic assembly on the positive terminal. pls help....

tintivilus · 06-08-2008, 10:31 AM

You didn't notice that that plastic assembly practically has instructions on it? Just unbolt it like a giant battery terminal.

kmoy2002 · 06-08-2008, 11:59 AM

Unbolt the strap, the nuts on the terminals, and the bolt that holds the battery. Then pull vertically...gotta muscle it up

Weaselboy · 06-08-2008, 05:41 PM

Does anybody know if the Autozone 49-DL battery fits the E90 like it did E46?

I335 · 06-09-2008, 05:25 AM

If your car is still under warranty why don't you just have the dealer replace it? The battery's covered too...

EDK99 · 06-09-2008, 08:50 AM

Quote:

Originally Posted by I335

If your car is still under warranty why don't you just have the dealer replace it? The battery's covered too...

Ah yeah! Why on earth would you purchase a new battery if your car is still under warranty?

I had mine replaced by the dealer a few months ago because it was not holding a charge. Turned out it had a bad cell.

jjfait · 12-03-2009, 11:35 AM

Quote:

Originally Posted by Weaselboy

Does anybody know if the Autozone 49-DL battery fits the E90 like it did E46?

Good question, I was wondering myself, I looked on autozones site and they list the 48-DL for the e90, same price as 49-DL. I was wondering if anyone has any experience with this and if this is the best replacement, its about $90

Edit: Sorry didn't notice the differences in cranking amps, so I guess it would be nice to know if the 49-DL still fits the e90

http://www.e90post.com/forums/showthread.php?t=292200

jjfait · 01-05-2010, 12:35 PM

So I replaced battery with 49-DL priced at $96, it seems just about the same length but just a hair longer making the fit extremely tight and I could barely get the foam piece in (I didnt bother with the screw that goes around the foam because the fitment is so tight. The 48-dl I'm sure would fit easily but is was just below specs of previous battery at 700 CCA and original was 720 CCA. A group 94R (H7) may be a better fit if you can get a deal on one and has more juice than the group 48. It seems to be about 1.5 inches shorter in length than the group 49.

06-08-2008, 08:21 AM	#1
kencel1 Registered 2 Rep 1 Posts Drives: 2006 bmw 325i Join Date: Jun 2008 Location: calif iTrader: (0)	How to replace battery Taught it was gonna be one simple diy to replace battery but found these plastic assembly on the positive terminal. pls help....
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06-08-2008, 10:31 AM	#2
tintivilus Lieutenant Colonel 26 Rep 1,826 Posts Drives: E92 335i Join Date: Sep 2006 Location: Lake County, IL iTrader: (0) Garage List 2007 E92 335i [0.00] 2003 325i [0.00]	You didn't notice that that plastic assembly practically has instructions on it? Just unbolt it like a giant battery terminal.
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06-08-2008, 11:59 AM	#3
kmoy2002 Lieutenant 12 Rep 472 Posts Drives: 2002tii, 540i, 330i Join Date: Jun 2008 Location: Chicago iTrader: (0)	Unbolt the strap, the nuts on the terminals, and the bolt that holds the battery. Then pull vertically...gotta muscle it up __________________
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06-08-2008, 05:41 PM	#4
Weaselboy Major 76 Rep 1,292 Posts Drives: 2024 M340i Join Date: Jun 2005 Location: California iTrader: (0)	Does anybody know if the Autozone 49-DL battery fits the E90 like it did E46?
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06-09-2008, 05:25 AM	#5
I335 Brigadier General 123 Rep 4,249 Posts Drives: '08 335i Coupe Join Date: Jan 2008 Location: New England iTrader: (11)	If your car is still under warranty why don't you just have the dealer replace it? The battery's covered too...
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01-05-2010, 12:35 PM	#8
jjfait New Member 3 Rep 28 Posts Drives: 06 330xi Black/Navi/Terra Join Date: Apr 2009 Location: Los Alamos iTrader: (0)	So I replaced battery with 49-DL priced at $96, it seems just about the same length but just a hair longer making the fit extremely tight and I could barely get the foam piece in (I didnt bother with the screw that goes around the foam because the fitment is so tight. The 48-dl I'm sure would fit easily but is was just below specs of previous battery at 700 CCA and original was 720 CCA. A group 94R (H7) may be a better fit if you can get a deal on one and has more juice than the group 48. It seems to be about 1.5 inches shorter in length than the group 49.
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