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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 02-15-2017, 01:22 PM   #601
GCoop
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Quote:
Originally Posted by BaliDawg View Post
For those reading, note that the H8 is a lot cheaper, fits perfect, and has a higher CCA.
https://www.walmart.com/ip/Everstart...49-EP/49988398
That's not an AGM.
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Old 02-15-2017, 03:01 PM   #602
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That's not an AGM.
Correct. But that's not required for an E46.
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Old 02-15-2017, 06:35 PM   #603
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Just Put A bosch 49-D battery in my car. Came out of a Mercedes-Benz. Just had to remove the stopper tab in the battery tray and all is good again.
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Old 02-15-2017, 06:39 PM   #604
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Originally Posted by BaliDawg View Post
Correct. But that's not required for an E46.
Understood but neither is the 900CCAs its like comparing apples and oranges or Mazdas to BMWs.

The price you linked for the lead-acid is average at best for an economy battery. Considering one can get an Interstate, Exide, or Bosch LA for just a few dollars more when shopping wisely.

To each their own though. I will concede that the Walmart battery will work just fine. I'm actually still on my initial replacement that I got from there almost 7 years ago now. However, that was back when Exide was the supplier for the EverStart Maxx line. I probably will go with something else next go around which is probably pretty close at hand.
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Old 02-19-2017, 03:31 PM   #605
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I'd be concerned about hydrogen collecting in your trunk, remember the Hindenburg.
great..where would the vent hole be?
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Old 02-19-2017, 04:30 PM   #606
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Should the voltage still read 12.4v when key is in position 2 after sitting overnight?
Actually I take this back. I just checked it. It's 12.6V exactly with the car off, 14.2V when the car is on. That being said, I have driven the car today.

I measured 12.4V at the fuse box when i was doing another project.
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Old 02-19-2017, 05:32 PM   #607
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Quote:
Originally Posted by Miko_10 View Post
great..where would the vent hole be?
On the right side of the battery near the positive terminal

Quote:
Originally Posted by bimmernate View Post
Actually I take this back. I just checked it. It's 12.6V exactly with the car off, 14.2V when the car is on. That being said, I have driven the car today.

I measured 12.4V at the fuse box when i was doing another project.
Thanks for double checking
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Old 03-14-2017, 09:57 AM   #608
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I recently was doing an inspection of my 05 325i during an oil change and noticed my battery has a production sticker of 10/2009.

I checked the voltage both running and off. Registered 14.1V and 12.5V accordingly. Never have had any issues starting.

My question is, what is the longest life you have gotten out of your battery? I currently have a Duralast 94R.
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Old 05-08-2017, 09:22 AM   #609
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Hey guys. Wondering If I could get a response before I check out the battery and possibly replace it. Last week or so, on and off, the car give a slight hesitation while starting almost like the battery is undercharged. I didn't think much of it until it happened again today. It is an 05 325xi. I haven't even looked at the battery since I bought the car back in december. I will at lunch today. However, if the battery is older, I get it tested, and I want to replace it, forget the aspect of which replacement battery I choose, is there anything with the ECU or OBC that needs to occur when you do this. Previously, I had an E90 which had a "brain" on top of the battery and my local BMW shop told me I had to reprogram the car when you replace the battery so the car knows it is charging a new and not an old battery. This was after I had jump started the car (never do this to an e90) and fried a couple sensors while doing it. From some of the pictures it doesn't seem like there is a brain or anything over the battery, I just wanted to make sure this was basically a drop in type of job.

Also I was looking at either the H8 battery from walmart or some of the pep boys batteries since they have pretty good promotions. The autozone ones seem very expensive in comparison.
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Old 05-08-2017, 09:47 AM   #610
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No coding neccessary when changing a battery in an e46. People use Walmart batteries all the time, I personally have one from Batteries+ in my e46 and one from Advance in my e36.
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Old 05-08-2017, 09:57 AM   #611
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The majority of the push button start BMW's require battery Registration/Programming assuming the same technology and size battery is not replacing what is in the car.

Luckily the E46 and similiar models that still require a key to start the vehicle do not require any Registration/Programming of the battery.'

This tends to be the easiest way to remember what chassis needs battery Registration/Programming.
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Old 05-08-2017, 11:02 AM   #612
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IBIS started being deployed in BMW vehicles in 2005. Not sure the first one were push-button - the 5 series got it first. Cars equipped with BMW IBIS (Intelligent Battery Information System) "may" require reprogramming. The way around it is to replace the battery with a battery of the exact same CCA specification - then IBIS does not need reprogrammed. Went through this recently with my e90. Had a friend email me the tech data on how IBIS worked and determined a replacement. The negative terminal lead has a small microprocessor in it that monitors the charge level and available crank output. It's baseline is the factory CCA spec.

I swapped my e90 770CCA BMW factory battery with an $86 wholesale 770CCA battery and no programming required (even though I had bought the Carly option to do this so was kinda pissed).

Anyway the logic in IBIS is neat - the alternator only directs power to the battery when necessary. DME sees IBIS as an Input signal and can force RPM's to increase depending on the current consumption and power need. I'll look for the document but it's not really relevant to the e46.
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Old 05-08-2017, 02:03 PM   #613
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Take a look for a manufacture date sticker. If it's over five years old, with the issues you are having, I would replace the battery.

I would test the voltage of the battery when it's off and while running. You should expect around 12.6V and 14V respectively.

That won't tell you everything about the condition of the battery but it's usually a good indicator.

Last time I checked Advanced Auto, Autozone, and Walmart batteries are all made by Johnson Controls. I would go with the best price and warranty.

Like said above, there is no programming needed with battery replacement on the E46. Make sure to connect your vent hose.
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Old 05-08-2017, 02:12 PM   #614
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Thanks Guys. I went to Advanced since it was the closest to my site today...The battery while off produced a 12.47 and "passed" by their standards. This was after a 50 minute drive to work sat for 3 hours and then a 12 minute drive to advanced. I looked and it was an interstate battery from 2011... I'm thinking its at the end of its life either way and will install a new one tonight. I think the pep boys has the best deal. The duralast from advanced was a H6 and it was 154 and was the lowest quality battery. I think pep boys had way better batteries for about the same with the promotions. Any idea if this makes sense...
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Old 05-08-2017, 02:22 PM   #615
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2011 production date is definitely worth replacing with your symptoms.

Advanced Auto carries AutoCraft and Autozone carries Duralast.

You can take 30% your order online using the promo code TRT30T and pick it up in store at Advanced Auto. I would go with the H8 instead of the H6.


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Old 05-08-2017, 02:28 PM   #616
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I believe the IBS started out with the E60 5 series and possible the E56 7 series?? I find that the sanity check I usually use is if the car has a push button start it most likely has the IBS system.

I believe there may have been some early E60 and E65 that still had no push button start, but I have never run across these.

As for batteries, VARTA and Johnson Controls were the primary Advance supplier, then for some reason Advance moved away from VARTA in favor of Johnson Controls a year or slightly more as I recall.

I ran into a HUGE issue with my E70 where a few things happened.

1. Advance Johnson Controls batteries did not have the Amp/Hour rating listed on them.

2. My SnapOn and Autel professional scan tools were unable to "Register/Program" the 105 Amp/Hour battery I obtained from Advance. This was after many conversations with Advance Auto.

3. Then I had to work with Carly to add the 105 Amp/Hour Registration/Programming option.

Like anything, products change over time and the software had not kept up with the market changes!
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Hidden OBC Menu - Check Voltage, Temp, Fuel Level - http://forum.e46fanatics.com/showthread.php?t=239619

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Old 05-08-2017, 03:07 PM   #617
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As for batteries, VARTA and Johnson Controls were the primary Advance supplier, then for some reason Advance moved away from VARTA in favor of Johnson Controls a year or slightly more as I recall.
Varta was owned by BMW - it was another one of the Quandt owned companies making up the Quandt Group. It was sold to Johnson Controls no less.
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Old 05-08-2017, 06:37 PM   #618
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Varta was owned by BMW - it was another one of the Quandt owned companies making up the Quandt Group. It was sold to Johnson Controls no less.
This seems to make some sense as to what happened. The VARTA batteries looked more like the OE batteries that shipped with the cars. Transition or phase out must have been around the time I needed a battery for my E70.
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Hidden OBC Menu - Check Voltage, Temp, Fuel Level - http://forum.e46fanatics.com/showthread.php?t=239619

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Old 05-08-2017, 06:41 PM   #619
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So unfortunately, I went and got a new battery AMG style H7 from advanced using the promo code. ( Thanks for saving me a 50 spot. Ill buy ya a beer) but the battery is not the issue. Alternator is reading fine and charging...battery is brand new and fine...looks like the only culprit left is the starter...which is the last thing I wanted to deal with during the work week. Hopefully it wont strand me. tomorrow at work before I get it to the shop.
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Old 05-08-2017, 06:55 PM   #620
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AGM (Absorbent Glass Matt)* AMG is the Mercedes Benz performance line.

Starter is not a fun job, right under the intake manifold. Good luck man
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