Extreme Powerhouse
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Mechanical Maintenance: Break-in / Oil & Fluids / Servicing / Warranty > Diag Battery Safety Terminal

Thread Tools Search this Thread
      01-14-2021, 12:55 PM   #1
upgrades. Upgrades, EVERYWHERE
fubarian's Avatar

Drives: E9X 335xi x2, E63 M6, F25
Join Date: Sep 2020
Location: Colorado

iTrader: (0)

Diag Battery Safety Terminal

Been fighting a good fight with my 335xi and trying everything to get it running properly -- and based on some other posts, I think it might be the BST or Battery Safety Terminal. Why? The car acts like it has no engine or transmission and displays a buncha warnings on the display but when I plug into the ODB it's like "naw, nothing here, plug in first". Interior lights and all come on, when you hit the button, a lot of clicking and no action. Do it again, it tries but doesn't start. It does have the passenger side restraint warning which after looking that up, could be either the pad sensor or this BST. Oh and I don't want to do the resistor trick. Not yet.

So, I'm wondering - is there a way I can positively ID this is the problem? How do I know this 200$ cable is to blame? I recently replaced the battery with a brand new OEM so yes, I've been around that area and it's entirely possible I caused damage to the cable when installing.

Can I check for voltage, resistance, any of those things and are their specs for it or something like that? I suspect it's not fully failed (ie, esploded), but might be just outside of tolerance enough to cause me nothing but christmas cheer.
2015 F25 35i
2011 E92 335xi (m4 brakes? koni yellows? E92 M3 wheels? ...oh what I have done)
2009 E90 335xi
2008 E63 ///M6
Appreciate 0


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 12:47 AM.

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