F30POST
F30POST
2012-2015 BMW 3-Series and 4-Series Forum
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > Mechanical Maintenance and TSBs: Break-in / Oil & Fluids / Servicing / TSBs and Service Bulletin > 12.2v at 46% do i need replacement?
ARMA SPEED
Post Reply
 
Thread Tools Search this Thread
      11-26-2021, 11:49 AM   #1
Bmwerspeed123
Enlisted Member
0
Rep
46
Posts

Drives: 320ixdrive
Join Date: Jun 2021
Location: Chicago

iTrader: (0)

12.2v at 46% do i need replacement?

Should I replace my battery?
Appreciate 0
      11-26-2021, 12:39 PM   #2
Billfitz
Lieutenant General
Billfitz's Avatar
United_States
5909
Rep
12,414
Posts

Drives: '15 328iX GT
Join Date: Jan 2015
Location: New Hampshire

iTrader: (0)

12.2v at 46% charge is normal.
Appreciate 0
      11-26-2021, 12:56 PM   #3
cfm56d7b
Major General
United_States
3724
Rep
8,060
Posts

Drives: 2017 440i Gran Coupe & 2015 X5
Join Date: Nov 2012
Location: Orange County, CA

iTrader: (2)

Quote:
Originally Posted by Bmwerspeed123 View Post
Should I replace my battery?
How old is the battery?
Appreciate 0
      11-26-2021, 02:40 PM   #4
Bmwerspeed123
Enlisted Member
0
Rep
46
Posts

Drives: 320ixdrive
Join Date: Jun 2021
Location: Chicago

iTrader: (0)

Quote:
Originally Posted by Billfitz View Post
12.2v at 46% charge is normal.
Hey, well I had my car go into neutral when I drove off my parking (happened 2x). Then yesterday it was fine. However, this morning i turned my car on and it was in park. After 2 minutes of being in park, i reved up and down few times and just turned off.

I have no check engine light or anything pop on my dash. I assumed maybe its dirty MAF sensor since I changed my intake to a CTS intake. However, I assume I would have a check engine light on.
Its a 5 year old car with 30k miles. I thought maybe time for new battery?
Appreciate 0
      11-26-2021, 02:41 PM   #5
Bmwerspeed123
Enlisted Member
0
Rep
46
Posts

Drives: 320ixdrive
Join Date: Jun 2021
Location: Chicago

iTrader: (0)

Quote:
Originally Posted by cfm56d7b View Post
Quote:
Originally Posted by Bmwerspeed123 View Post
Should I replace my battery?
How old is the battery?
Hey, well I had my car go into neutral when I drove off my parking (happened 2x). Then yesterday it was fine. However, this morning i turned my car on and it was in park. After 2 minutes of being in park, i reved up and down few times and just turned off.

I have no check engine light or anything pop on my dash. I assumed maybe its dirty MAF sensor since I changed my intake to a CTS intake. However, I assume I would have a check engine light on.
Its a 5 year old car with 30k miles. I thought maybe time for new battery?
Appreciate 0
      11-26-2021, 03:53 PM   #6
Billfitz
Lieutenant General
Billfitz's Avatar
United_States
5909
Rep
12,414
Posts

Drives: '15 328iX GT
Join Date: Jan 2015
Location: New Hampshire

iTrader: (0)

Don't add your name to the list of people who bought a battery for no good reason just because someone made an internet diagnosis. Whatever is causing the car to go into neutral should come up on a scan with a diagnostic tool. That's the first step in diagnosing any problem. First you find out what's broken, then you fix it, not the other way around. Besides, if you get a battery you'll need a diagnostic repair tool like Bimmerlink to register it.

Withe proper care, which includes using a maintainer if you don't drive much in winter, a battery may last at least eight years. Mine is approaching seven, and it's as good as the day it was new.
Appreciate 0
      11-26-2021, 04:09 PM   #7
Bmwerspeed123
Enlisted Member
0
Rep
46
Posts

Drives: 320ixdrive
Join Date: Jun 2021
Location: Chicago

iTrader: (0)

Quote:
Originally Posted by Billfitz View Post
Don't add your name to the list of people who bought a battery for no good reason just because someone made an internet diagnosis. Whatever is causing the car to go into neutral should come up on a scan with a diagnostic tool. That's the first step in diagnosing any problem. First you find out what's broken, then you fix it, not the other way around. Besides, if you get a battery you'll need a diagnostic repair tool like Bimmerlink to register it.

Withe proper care, which includes using a maintainer if you don't drive much in winter, a battery may last at least eight years. Mine is approaching seven, and it's as good as the day it was new.
Yeah thank you, i do agree with you. Just wanted to when people usually change their battery.
Appreciate 0
      11-28-2021, 11:22 AM   #8
Jvac
Lieutenant
172
Rep
412
Posts

Drives: 2015 335i rwd
Join Date: Jan 2019
Location: Usa

iTrader: (1)

Quote:
Originally Posted by Bmwerspeed123 View Post
Quote:
Originally Posted by Billfitz View Post
Don't add your name to the list of people who bought a battery for no good reason just because someone made an internet diagnosis. Whatever is causing the car to go into neutral should come up on a scan with a diagnostic tool. That's the first step in diagnosing any problem. First you find out what's broken, then you fix it, not the other way around. Besides, if you get a battery you'll need a diagnostic repair tool like Bimmerlink to register it.

Withe proper care, which includes using a maintainer if you don't drive much in winter, a battery may last at least eight years. Mine is approaching seven, and it's as good as the day it was new.
Yeah thank you, i do agree with you. Just wanted to when people usually change their battery.
Mine lasted 6+ years on a daily driver. These batteries are pretty big so they can accommodate the stop/start system. They are otherwise oversized for such a small engine.
__________________
335i rwd auto, 2015 with m performance LSD and Dinan stage 2. Cts charge pipe, mad 5" stepped intercooler.
Appreciate 1
      11-28-2021, 04:29 PM   #9
chowser51
Colonel
chowser51's Avatar
United_States
1390
Rep
2,424
Posts

Drives: F33 430 and F39 M35i
Join Date: Feb 2009
Location: Cleveland, OH

iTrader: (3)

Garage List
Diagnose your issue. Get a maintainer. My Subaru had an undersized battery and didn’t last long. I have a maintainer now for my bmw and my daughter’s Subaru just in case.
The battery in her HHR was 13 years old and still kicking when we traded it in.

It just depends. Take care of it and it should take care of you. Winter is here so I am keeping our cars on the maintainer once a week.
Appreciate 0
      11-28-2021, 04:50 PM   #10
Billfitz
Lieutenant General
Billfitz's Avatar
United_States
5909
Rep
12,414
Posts

Drives: '15 328iX GT
Join Date: Jan 2015
Location: New Hampshire

iTrader: (0)

I generally drive only one day a week in winter, and then for only ten miles, so the rest of the time it's on the maintainer. That would be overkill in warmer areas, but not in New Hampshire, or Chicago and Cleveland, let alone The Great White North.
Appreciate 1
chowser511390.00
      11-29-2021, 01:13 PM   #11
Bmwerspeed123
Enlisted Member
0
Rep
46
Posts

Drives: 320ixdrive
Join Date: Jun 2021
Location: Chicago

iTrader: (0)

Quote:
Originally Posted by Billfitz View Post
I generally drive only one day a week in winter, and then for only ten miles, so the rest of the time it's on the maintainer. That would be overkill in warmer areas, but not in New Hampshire, or Chicago and Cleveland, let alone The Great White North.
Got the code of 102001 air mass plausibility
Appreciate 0
      11-29-2021, 04:11 PM   #12
Billfitz
Lieutenant General
Billfitz's Avatar
United_States
5909
Rep
12,414
Posts

Drives: '15 328iX GT
Join Date: Jan 2015
Location: New Hampshire

iTrader: (0)

That probably has nothing to do with the battery.
https://bmwfault.codes/
Appreciate 0
      11-29-2021, 05:49 PM   #13
chowser51
Colonel
chowser51's Avatar
United_States
1390
Rep
2,424
Posts

Drives: F33 430 and F39 M35i
Join Date: Feb 2009
Location: Cleveland, OH

iTrader: (3)

Garage List
Quote:
Originally Posted by Bmwerspeed123 View Post
Got the code of 102001 air mass plausibility
Do you have an aftermarket intake?
Appreciate 0
      11-30-2021, 03:34 PM   #14
Bmwerspeed123
Enlisted Member
0
Rep
46
Posts

Drives: 320ixdrive
Join Date: Jun 2021
Location: Chicago

iTrader: (0)

Quote:
Originally Posted by chowser51 View Post
Quote:
Originally Posted by Bmwerspeed123 View Post
Got the code of 102001 air mass plausibility
Do you have an aftermarket intake?
Yeah, i do. No check engine. Only sometimes om cold start it stutters and turns off. Then i turn it on and its fine. And when i checked to see what codes i get well i got thise code.
Appreciate 0
      12-01-2021, 12:45 PM   #15
thejeremyman9
Major General
thejeremyman9's Avatar
2814
Rep
5,477
Posts

Drives: 2015 BMW 335i
Join Date: May 2019
Location: Cali

iTrader: (0)

Quote:
Originally Posted by Bmwerspeed123 View Post
Yeah, i do. No check engine. Only sometimes om cold start it stutters and turns off. Then i turn it on and its fine. And when i checked to see what codes i get well i got thise code.
Swap back to stock intake and see if the problem persists.
Appreciate 1
chowser511390.00
      12-01-2021, 01:57 PM   #16
chowser51
Colonel
chowser51's Avatar
United_States
1390
Rep
2,424
Posts

Drives: F33 430 and F39 M35i
Join Date: Feb 2009
Location: Cleveland, OH

iTrader: (3)

Garage List
Agreed. Switch back to stock intake and clean the maf. Then see if the code goes away.
A lot of aftermarket hot air intakes just aren’t worth the sound.
Appreciate 1
Billfitz5909.00
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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 Off



All times are GMT -5. The time now is 07:51 AM.




f30post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2022, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST