[OG Style]

I think the battery in my car need replaced. Is there anything special I need to do?

[mississippiBMW]

If you replace your battery.....you will need to register it. This can be done at the dealership, indy shop, or you can do it at home if you have INPA with OBDII to USB cable.

[OG Style]

The battery in it now is not oem. How much is the stuff do do it myself?

[OG Style]

What does registering them do? I don't quite understand.

[ryan stewart]

Originally Posted by OG Style

What does registering them do? I don't quite understand.

The system is supposed to evaluate the battery health and will kind of "overcharge" a dying battery to make it perform better later on in life. If you dont tell the system it has a new battery it will overcharge the new battery, shortening its lifespan.

[OG Style]

How much are the adapters so I can register it myself? Will it damage anything other than the battery if I don't get it registered?

[tlow98]

Google bmw e90 replacement.

[OG Style]

Would this tool work for registering the battery? https://www.ebay.com/itm/MPPS-V13-US...item23a11bcecb

[Bali]

Watch this video.

[ctuna]

I believe the battery he starts out with is lead acid.

[ctuna]

Don't attempt to use battery back up.
Do not close the trunk with the battery out.
Match or exceed the amp hour rating of the current battery

Read the replacement DIY's as many as possible .
Get a coding cable and download diagnostics and coding
software look on the coding and DIY subforums for the correct
coding and replacement instructions.

[gbalthrop]

Originally Posted by OG Style

I think the battery in my car need replaced. Is there anything special I need to do?

IF you replace your present battery with one of the (1) same type (lead-acid vs. AGM) and (2) same AH (Amp-Hour) rating, then you do NOT need to "register" the new battery, or "program" or change any code in the DME. The IBS (Intelligent Battery Sensor) and DME are regularly sending and receiving information on the Battery's SOC (State of Charge) and SOH (State of Health), related to Voltage, Amps, and internal battery temp.

The DME maintains a "Histogram" or Log of that data which is overwritten during a 5-day period, and data for the last 5 days can be read with INPA. The DME uses the data from the last 5 days to "customize" charging. When someone with INPA/ISTA replaces an old battery with one of the same type & AH rating, he should take a minute with INPA to "Reset Histogram" (DME | F5 | F5 | F6), and to activate "Battery Replacement Register" (DME | F5 | F5 | F5) which enters current mileage/km in DME memory. Histogram data, the currently-programmed AH rating of the battery, and mileage at time of any prior registration of a replacement battery can be viewed in other screens before those cited above. All Function Key sequences are those used when connected to MSV80 DME on N52KP 2007 328xi.

BUT, if you don't have INPA/ISTA, even if you don't reset the Histogram, in 5 days the system will be working off data related to the (new) replacement battery, and Registration is only informational -- saving a record of mileage when changed in DME memory. IF you replace with same AH and type as current battery, then no need to do anything with scan tool. EXCEPT, when the vehicle is new to you, if you do NOT check the AH rating saved in the DME, you can't be sure the last change was done properly. My 2007 328xi E91 clearly had a replacement battery in it when I bought it used (Interstate battery). The AH rating programmed in the DME is 90 AH.

There seems to be a LOT of different/alternate "facts" about batteries, registration & programming being tossed around on various forums from time to time. The above is based upon a reliable Pro's discussion of the issue, and my own examination of INPA screens connected to my vehicle. Anyone having differing reliable information, please advise.

To Anyone with a Windows Laptop, I would highly recommend getting a K+DCAN cable, $45 from BimmerGeeks or as little as $15 from other sources, and downloading/ installing INPA or ISTA. There's a LOT more to diagnostics than reading/clearing codes. Much of INPA is in German, so some time with Google Translate may be required, but if you plan to keep your E9x for years, then it or ISTA (MORE in English) is the way to go.

George

[OG Style]

Originally Posted by gbalthrop

IF you replace your present battery with one of the (1) same type (lead-acid vs. AGM) and (2) same AH (Amp-Hour) rating, then you do NOT need to "register" the new battery, or "program" or change any code in the DME. The IBS (Intelligent Battery Sensor) and DME are regularly sending and receiving information on the Battery's SOC (State of Charge) and SOH (State of Health), related to Voltage, Amps, and internal battery temp.

The DME maintains a "Histogram" or Log of that data which is overwritten during a 5-day period, and data for the last 5 days can be read with INPA. The DME uses the data from the last 5 days to "customize" charging. When someone with INPA/ISTA replaces an old battery with one of the same type & AH rating, he should take a minute with INPA to "Reset Histogram" (DME | F5 | F5 | F6), and to activate "Battery Replacement Register" (DME | F5 | F5 | F5) which enters current mileage/km in DME memory. Histogram data, the currently-programmed AH rating of the battery, and mileage at time of any prior registration of a replacement battery can be viewed in other screens before those cited above. All Function Key sequences are those used when connected to MSV80 DME on N52KP 2007 328xi.

BUT, if you don't have INPA/ISTA, even if you don't reset the Histogram, in 5 days the system will be working off data related to the (new) replacement battery, and Registration is only informational -- saving a record of mileage when changed in DME memory. IF you replace with same AH and type as current battery, then no need to do anything with scan tool. EXCEPT, when the vehicle is new to you, if you do NOT check the AH rating saved in the DME, you can't be sure the last change was done properly. My 2007 328xi E91 clearly had a replacement battery in it when I bought it used (Interstate battery). The AH rating programmed in the DME is 90 AH.

There seems to be a LOT of different/alternate "facts" about batteries, registration & programming being tossed around on various forums from time to time. The above is based upon a reliable Pro's discussion of the issue, and my own examination of INPA screens connected to my vehicle. Anyone having differing reliable information, please advise.

To Anyone with a Windows Laptop, I would highly recommend getting a K+DCAN cable, $45 from BimmerGeeks or as little as $15 from other sources, and downloading/ installing INPA or ISTA. There's a LOT more to diagnostics than reading/clearing codes. Much of INPA is in German, so some time with Google Translate may be required, but if you plan to keep your E9x for years, then it or ISTA (MORE in English) is the way to go.

George

I sent you a PM.

[Efthreeoh]

Replacing a battery in the E90 is not a simple task. I just did it for the 4th time yesterday in my car. It takes 3 hands (or tape). It is a pain in the ass. There are 3 wires to unplug and then you need to figure out how to get the BST off the top of the battery. Then remove the IBS without damaging it. Then disconnect the vent tube. Then remove the hold down clamps. If you have little or no experience working on cars, leave the replacement to a professional BMW shop.

[OG Style]

I've always worked on my own cars for about 20 years.

[OG Style]

Does a power source need hooked up when removing the battery?

[BravoJohny33]

Originally Posted by OG Style

Does a power source need hooked up when removing the battery?

no. don't use a memory saver thing from autozone. One of the guys there tried to get me to use one and it will mess up your car.

PS don't close the trunk or you will have bad day.

[hassmaschine]

unless you have an early car, with a keyhole in the trunk.

[alexander_lundgreen]

hello im a new member in this forum.
for some days ago i bought a new car, BMW 320i e90 lci msport. and when im starting it up it cranks for about 2 seconds and then start up. i have read about this and some says its the battery and some says the starter. but one guys say if you check the car voltage and if it is in between 12,25-12,50 when the car have not been driven for maybe 4-5 hours the battery is bad. so i check this on mine car and it show i have 12,35Volts. could this probably be the battery is bad?? because the car battery has never been changed.

pls let me know what you think and if you had a problem like this on your car

[gjm120]

Originally Posted by alexander_lundgreen

hello im a new member in this forum.
for some days ago i bought a new car, BMW 320i e90 lci msport. and when im starting it up it cranks for about 2 seconds and then start up. i have read about this and some says its the battery and some says the starter. but one guys say if you check the car voltage and if it is in between 12,25-12,50 when the car have not been driven for maybe 4-5 hours the battery is bad. so i check this on mine car and it show i have 12,35Volts. could this probably be the battery is bad?? because the car battery has never been changed.

pls let me know what you think and if you had a problem like this on your car

Those voltages are not abnormal. However, a low voltage tells you something is wrong for sure, but, a normal voltage isn't assurance the battery is good.

You need to get a load test done. Not sure if it is ok to do a load test with the battery in the car - hopefully someone who knows will respond.

[OG Style]

What does this plug go to?

[OG Style]

Does this car have a Battery Safety Terminal that will blow if the car is wrecked?