E90Post
 


The Tire Rack
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > Anyone get these battery codes?



Reply
 
Thread Tools Search this Thread
      07-23-2021, 10:32 AM   #1
Tony7141
New Member
Tony7141's Avatar
United_States
0
Rep
7
Posts

Drives: 2011 BMW 335i Coupe xDrive
Join Date: Apr 2021
Location: Minnesota

iTrader: (0)

Anyone get these battery codes?

I have a 2011 e92 BMW 335i xDrive and I notice that I have been getting battery codes when I check on it on MHD

The codes are:

3876 - Power management: central undervoltage
387F - Power management: Standby
current violation

I've notice for a while that the 387F code will pop up every cold start or the next day after driving it. The 3876 code pops up sometimes but not much and my CIC screen would look dim when that code would pop up. I am assuming its something to do with the recall for the battery wiring a while back. I checked my VIN on the BMW recall website and it says I have no active recalls.

The car's build date is 2/2011. Any other ideas or any tips or advice?
Appreciate 0
      07-23-2021, 11:28 AM   #2
Kevin39
Lieutenant
162
Rep
477
Posts

Drives: 2011 E90 N55
Join Date: Feb 2016
Location: Indiana

iTrader: (0)

I've randomly gotten the 387F here and there for years. No idea why.
Appreciate 0
      07-23-2021, 12:01 PM   #3
Tony7141
New Member
Tony7141's Avatar
United_States
0
Rep
7
Posts

Drives: 2011 BMW 335i Coupe xDrive
Join Date: Apr 2021
Location: Minnesota

iTrader: (0)

Quote:
Originally Posted by Kevin39 View Post
I've randomly gotten the 387F here and there for years. No idea why.
Any issues with that at all? Like rough idles or long cranks or dim screens?
Appreciate 0
      07-23-2021, 05:37 PM   #4
Kevin39
Lieutenant
162
Rep
477
Posts

Drives: 2011 E90 N55
Join Date: Feb 2016
Location: Indiana

iTrader: (0)

I don't have iDrive but everything else seems completely normal to me.

Did you change or do anything with the car recently right before the codes started coming up?
Appreciate 0
      07-25-2021, 11:06 AM   #5
Tony7141
New Member
Tony7141's Avatar
United_States
0
Rep
7
Posts

Drives: 2011 BMW 335i Coupe xDrive
Join Date: Apr 2021
Location: Minnesota

iTrader: (0)

Quote:
Originally Posted by Kevin39 View Post
I don't have iDrive but everything else seems completely normal to me.

Did you change or do anything with the car recently right before the codes started coming up?
Nope, I would say the only thing I thought it would be coming from is the little THOR adaptor for MHD just chilling in my OBD2 port all day and that light using battery power lol.
Appreciate 0
      07-26-2021, 09:24 AM   #6
Kevin39
Lieutenant
162
Rep
477
Posts

Drives: 2011 E90 N55
Join Date: Feb 2016
Location: Indiana

iTrader: (0)

I never leave my MHD adapter plugged in and I got the 387F code occasionally even before the wifi adapter came out
Appreciate 1
      07-26-2021, 09:29 AM   #7
NRigs
First Lieutenant
81
Rep
390
Posts

Drives: 2011 BMW 335xi
Join Date: Feb 2017
Location: Ma

iTrader: (0)

I noticed that I would get the 387F code when I leaved the OBDII adapter for MHD plugged in. After I started taking it out the code stopped coming up.
__________________
Current: 2011 BMW 335xi | Wedge Tuned | Meth | VRSF DP | VRSF 5" Intercooler | VRSF Chargepipe | BMS Intake | xHP Stg 3
Totaled:2014 Audi A4 CTS K04 APR Tuned
Appreciate 1
      07-26-2021, 03:27 PM   #8
FireBlaze
Private First Class
46
Rep
150
Posts

Drives: 2013 E92 335i 6MT M-Sport
Join Date: Mar 2016
Location: Torrance, CA

iTrader: (0)

I get 387F code because my dash cam is hardwired for always-on. It probably is because the MHD adapter is always on.
__________________
VRSF DP, VRSF 7" Intercooler, BMS OCC, Stg 2 LPFP, Custom MHD E30 Tune, Late Model E-Series N55
Appreciate 1
      07-27-2021, 02:57 PM   #9
NRigs
First Lieutenant
81
Rep
390
Posts

Drives: 2011 BMW 335xi
Join Date: Feb 2017
Location: Ma

iTrader: (0)

Has anyone noticed if their car will unlock by itself when they get these codes? I believe my car unlocks itself sometimes when this code pops up. Since I unplug the adapter when I am not using it now, I am not coming back to my car unlocked anymore.
__________________
Current: 2011 BMW 335xi | Wedge Tuned | Meth | VRSF DP | VRSF 5" Intercooler | VRSF Chargepipe | BMS Intake | xHP Stg 3
Totaled:2014 Audi A4 CTS K04 APR Tuned
Appreciate 0
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 02:01 AM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, 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