DIY: 2008 E60 M5 Battery Replacement - Page 2 - BMW M5 Forum and M6 Forums
E60 M5 and E61 M5 Touring Discussion 2005- Advertiser's Forum

 10Likes
Reply
 
LinkBack Thread Tools Rate Thread Display Modes
post #11 of 40 Old 13th September 2013, 11:41 PM
Clyde
M5 Guru (>2000 posts)
 
Clyde's Avatar
 
Join Date: Jun 2006
Location: Los Gatos CA
Posts: 3,244
Thanks: 554
Thanked 809 Times in 542 Posts
Quote:
Originally Posted by Tottifan View Post
3. Remove the battery brace, a metal bar that holds it in place. There is a small plastic wire organizer that easily unsnaps to move the wires attached to the brace.
4. Completely unscrew and then remove the negative (black) terminal first, and cover it with plastic.
It would be safer to swap these to steps, since often the cover over the positive terminal is missing and there is a small chance of accidentally creating a short.

Quote:
Originally Posted by Tottifan View Post
I started the car and drove it for a bit, and everything seemed fine despite not having programmed anything. I will follow up in a few days after I am confident it is still fine.
You will likely be fine, but might experience slightly shorter battery life. AGM batteries are more available and cheaper than a couple years ago, and the trend will continue as more car manufacturers switch to AGM.
Clyde is offline  
Sponsored Links
Advertisement
 
post #12 of 40 Old 17th September 2013, 07:02 AM
brad-cam
Junior Member, warming up (<31 posts)
 
Join Date: Mar 2012
Location: Santa Rosa
Posts: 13
Thanks: 2
Thanked 0 Times in 0 Posts
Garage
I just replaced my battery today too in my '06. Totally preventative, starts have seemed a little sluggish lately and even with a tender I've not been able to get the old battery higher than 12.4V.

I put in a Sears DieHard Gold AGM49. Perfect fit, exactly like original, marked 92 Ah. I performed the registration with INPA.

Sears has these batteries on sale for $162 right now (10% off).

OP, I didn't see your DIY until now, but it's spot on.
brad-cam is offline  
post #13 of 40 Old 17th September 2013, 02:06 PM
MoOriginal
Member, Sport: On DSC: Off
 
MoOriginal's Avatar
 
Join Date: May 2013
Location: London, UK
Posts: 273
Thanks: 11
Thanked 21 Times in 21 Posts
subbed

I have a question - So does the car need to be programmed to the battery or can you get away with not doing that ?
MoOriginal is offline  
 
post #14 of 40 Old 18th September 2013, 11:54 AM Thread Starter
Tottifan
Junior Member, warming up (<31 posts)
 
Join Date: Mar 2010
Location: New York
Posts: 24
Thanks: 8
Thanked 16 Times in 6 Posts
Update:

It's been about a week now, and I have put about 50 miles on the car and driven it every day. I have had no issues with the battery swap I outlined in the OP.

Note: I have not programmed/registered the battery, just physically swapped it for a new one. This was a conscious decision I made. If this is the first thread you are reading on the subject, do more searches to see some of the discussions about what battery programming is and why you should consider it.
Tottifan is offline  
post #15 of 40 Old 18th September 2013, 07:10 PM
abwalt
Junior Member, warming up (<31 posts)
 
Join Date: Apr 2011
Location: USA
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Garage
E60 battery replacement

My M5 was built in late 2005 & still has the original battery. In the winter months (DC area) I use the BMW charger/ tender to keep it @ full charge.
My understanding of the need to register the battery with the ECU is that it resets the charging system so that the battery does not become overcharged & subsequently destroyed.
When I have to replace the battery, I will take to the shop & have it registered.
abwalt is offline  
post #16 of 40 Old 18th September 2013, 07:18 PM
nedc
Junior Member, warming up (<31 posts)
 
Join Date: Aug 2011
Location: Manning, SC
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
For what it's worth, I replaced the battery in my daughter's 06 325i over two years ago and did not reprogram (mainly because i would have had to take to the dealer 100 miles away). Checked output w/ voltmeter and it was around 14v+- right where it should be. Have had no problems.
nedc is offline  
post #17 of 40 Old 19th September 2013, 08:07 AM
galun
Junior Member, warming up (<31 posts)
 
Join Date: Aug 2013
Location: USA
Posts: 30
Thanks: 1
Thanked 2 Times in 2 Posts
I had been getting a high battery drain message so I decided to change my 6.5 year old battery. I decided to buy OEM BMW battery since my car is still under BMW extended warranty. According to the dealer, BMW no longer makes the original 90Ah 900CCA battery. The replacement part number is 61217639053. It is an Exide AGM battery with 92Ah, 850CCA, and 160RC. The specs look very much like the Duralast H8-AGM from autozone. When I registered the battery and tried to code through NCS expert, there is no option to code for 92Ah. So I left it at 90Ah and registered it that way.

Oh well. The battery is about $280 vs. $190 at autozone. So a $90 premium. In the grand scheme of things I guess it can be worse. At least I didn't pay for labor and coding.
galun is offline  
post #18 of 40 Old 11th October 2013, 06:16 AM
wshtb
Member
 
Join Date: Jan 2010
Location: Orange County, CA
Posts: 45
Thanks: 0
Thanked 0 Times in 0 Posts
On the product description page for Duralast Platinum H8-AGM battery, it says:

Quote:
STOP!: Use a memory saver (located in the store GOTTChA kit) to prevent the need to reset vehicle systems.
Anybody know what is this?
wshtb is offline  
post #19 of 40 Old 11th October 2013, 06:40 PM Thread Starter
Tottifan
Junior Member, warming up (<31 posts)
 
Join Date: Mar 2010
Location: New York
Posts: 24
Thanks: 8
Thanked 16 Times in 6 Posts
They are just referring to using a device to help the car maintain power while you change a battery, as many cars lose various settings (radio stations, time, etc) when you disconnect them from power. On the M5, using the steps I outlined in the OP, my experience was that I only had to reset my date and time - nothing else was lost, and I did not use any sort of memory saver.

Note that a memory saver device is essentially like a small battery that you plug in to your cigarette lighter (or similar outlet in your car). It provides just enough power to your car's computers while you disconnect the main battery so that the computers never fully lose power and are able to maintain certain settings that might otherwise be lost. Whether settings will actually be lost by disconnecting all power is more a function of how the car stores the settings, and every car is different. On the M5, I believe the cigarette outlet is not powered on when the car is turned off anyway - meaning a memory saver shouldn't work in the first place in our car.
Tottifan is offline  
post #20 of 40 Old 26th November 2013, 10:27 PM Thread Starter
Tottifan
Junior Member, warming up (<31 posts)
 
Join Date: Mar 2010
Location: New York
Posts: 24
Thanks: 8
Thanked 16 Times in 6 Posts
Update: After a few thousand miles and several months, my alternator and/or voltage regulator failed (overcharging my battery, reading 18v). See my thread here:

https://www.m5board.com/vbulletin/e60...ml#post4068306

It is unclear to me whether my dying battery caused the alternator to prematurely fail a few months later, whether not choosing to reprogram the battery played a role, or whether this was just bad luck. I did want to share the full information for everyone's benefit.
Tottifan is offline  
Reply

Bookmarks

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the BMW M5 Forum and M6 Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 6 (0 members and 6 guests)
 



Similar Threads
Thread Thread Starter Forum Replies Last Post
Replacement Battery WOO E34 M5 Discussion 23 2nd August 2017 06:21 PM
battery replacement? MOOK03TRMN8R E60 M5 and E61 M5 Touring Discussion 31 6th December 2013 06:42 AM
2008 E60 Battery Issues and "Increased Emissions" brendon4 E60 M5 and E61 M5 Touring Discussion 3 7th March 2013 05:07 PM
Best replacement battery? tomssvx E39 M5 and E52 Z8 Discussion 6 26th January 2011 12:26 PM
'03 M3 Cab Battery Replacement? 2mnycars E90 M3 Sedan, E92 M3 Coupe, E93 M3 Convertible, E46 M3 and E36 M3, Z4 M and Z4 M Coupe 3 1st September 2009 04:25 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome