BMW Battery Safety Terminals (BST) - Diagnosing and Repairing

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The Car Commando gives tips and tricks for BMW Battery Safety Terminal (BST) diagnosis and repair. Find more On Demand Technical Training videos and Technical reference Manuals at www.euroautotraining.com.

[@Blicknn95]

and that right there deserves a medal

[@neechazs]

well that intro was about 1:25 longer than it needed to be.

[@artysmotorsports]

Facts

[@sashaliss2962]

I salute you Car Commando

[@fotomedia1]

Interesting, my bmw '99 E39 528i has been having electrical power issues lately and today after I turned off my engine for about 2 minutes i tried starting up my car again and all the electrical power went completely dead, no dash lights, no power locks or even the windows worked. There was no way way a battery could drain that quick and completely dead in 2 minutes so i checked for loose cable connectors on the battery terminals and they were on fairly tight but what I discovered was when I wiggled the only positive battery cable itself all the electrical power turned back on, So your video could explain exactly what my electrical power problem is. I will look into it further tomorrow. Thanks for your video.

[@urbanfolk4949]

I have recently purchased 2002 e39 tourer i am having this problem gonna watch the vid now!

[@HanzelFonferek]

Thank you! Very helpful!

[@handsomemog]

hi, ive got airbag and restraint sytem malfunction,the code that comes up is ( 9AFF Resistance firing circuit, safety battery terminal, too high ), the bst seems to be fine,ive cleaned every connection and had the codes cleared,but it comes back on after a short time, the charging output is about 14.5 volts from alternator when measured at the battery terminals,also car has been to BMW for a recall issue concerning a cover for the battery cable terminal in the trunk,cheers for your help

[@1966Chevy2SS]

If you break the T-shaped bolt that allows the cable to clamp to the battery you cannot get one from BMW, they dont sell them separately from the cable... but you can go to a auto parts store that sells Standard Motor Product branded parts and ask for a BP59C, or the BWD branded part BH59B, or go to a NAPA and ask for a 718628. Dont overtighten, the torque needed is 5NM or 3.6 Ft Lbs.

[@carlitos_pr7233]

1966Chevy2SS wym

[@nzjemountfort]

do these things fail for no darn reason at all ? I have a BST on my 2002 e46, that hasnt blown, but is showing a "resistance too high" from the BST circuit. Any possibility of the black wire being loose or rusty i.e. is the resistance measured between that black box wire -> the yellow plug on the BST ? Thanks for the video, very helpful.

[@skyh2k]

Thanks for the Great info.

[@matthewlamm6990]

super helpful

[@marlenalavaka2575]

I have a 2006 BMW X3 got rear-ended,i try to started everything lights up and you can hear a click but it won't start,do you think that could be the issue the BST

[@JorgeFernandezmarketing]

there anyway to rig this to work temporarily until i get a new one?

[@luizvictorsq]

I changed the cable of e60 550i, but with 5 minutes running the car, the BST Blow again, so I am afraid of changing, maybe a problem with ABS Module?

[@isaiahwilliams7751]

could heavy bass trigger this?

[@JorgeFernandezmarketing]

There anyway to rig this to work after its blown?

[@SanDoval201970]

yes

[@AlexPerez-km5pj]

Hi I need help ! I have a 2012 e92 335i & it won't start up the engine but it turn/on the power & the brake is stiff :((

[@bennyclaudio9626]

Thank you for your video, can you provide the part number for BST repair kit please.this is what I got and it was rear ended and I got airbag code. BMW is selling it for $560. Thank you.

[@evangelistaivanlopez601]

Great video .See you to the next..Gracias amigo

[@Tr33People]

Make the intro shorter.

[@tomasboragina]

hello Thomas I just been hit on the road from the back and the car won't start but the radio and everything works except the engine is this what I need to replace I'm guessing seatbelt pretensioners exploded the airbags didn't went off but when you turn the key the engine warm run and I have the airbag warning light on

[@nyhammer1]

Did you get a brain damage at the same time ?

[@s.t.p.louwlouw8539]

Hi will you be able to help me, l have my BMW's water damaged computer box replaced with an automatic computer lock-set. My car starts very well but the steering wheel doesn't unlock even though the engine is idling.The second thing the radiator fan keeps on running without shutting off. My car is a 2011 model, 320i, Petrol, manual sedan. The steering wheel just remains locked it doesn't turn. The car's ignition is a start-stop one with the remote key fob. Please help.

[@user-fe2tk9sk1o]

Fuck BST. Idc what they thought it could do but apparently it blows up after driving through a pot hole or a bump at 5 mph. Now the car doesn't start for literally no reason

[@noahzm_]

My gahhdamn problem I hit a pothole n my shit cut off on me windows won’t roll up or down windshield wipers won’t go off no radio no crank or start 🤦‍♂️

[@antonioswamp]

y have the light check airbag red...... and i have this error.
battery savety terminal 1. what i have to change ..?

[@cristao100porcento]

what caused yours to do that? that happened to me when I was hit and airbag was deployed. some sort of safety thing do the car doesn't start with a deployed airbag

[@RAFIKNASRIA89]

Hey, The best ideas that I have checked out was on Volt daddy (just google it) Without a doubt the most helpful info on batteries and this type of stuff that i have found.

[@leogarcigarcin]

is this issue kill the battery???

[@rexcro]

Thx man. I changed the battery and take down that fuckilg little cable. The airbag and belt error wwent out!

[@ckoks]

Is this what would be happening to my honda prelude? I got into a minor accident hit the back of a semi going 5kmh my radiator was pushed in and damaged. I think the battery was damaged too im not sure also my key is stuck in the ignition won’t come out since I crashed.

[@lard1892]

No

[@mrjv750li]

Can this cause a light control module to fail?

[@mrjv750li]

U need to replace the positive cable

[@TheSchoeMaker]

any advice on replacing a bst/power distribution block on a e90 with one from a year or 2 newer model?

[@BMWPROGRAMMINGJAMAICA]

replace the crash sensor and the Airbag module

[@jracing_nyc4065]

@@BMWPROGRAMMINGJAMAICA im having problems with my e90 335xi 2009 my battery positive terminal wire the sensor was melted so I replaced it with a used one and after I di that my abs and 4x4 lights r on for good dnt know what going on

[@jracing_nyc4065]

@@BMWPROGRAMMINGJAMAICA any help please 🙏

[@BryanChance]

The car doesn't start when the BST fires. Your power windows and other accessories still has power.

[@kyezek524]

Exactly, this happened to my 328xi. It won't start, but it has power.

[@michaelshuey7622]

Would this stop the starter from cranking while still having some lites in the dash, radio lites up but won't play

[@truth4reel]

Yes it would

[@APE029]

Very true got brake checked yesterday mine blew and carr won't fucking start airbags blasted for no reason

[@dosko01]

i just bought a bmw 2006 330i from the auction the car was hit lightly broken headlight no air bag deployed checked the bts and looked fine but i have no electric power what so ever in the cockpit can start the car as well, if i press the power on the radio it will turn on and the in dash the button that shows the k also lights up no christmas lights. please help me out what i should do i live in hamilton ontario.

[@DRUP3L]

Found this guy that sells a diy bts rapid kit on ebay and I bought a kit off him for like 65 dlls if any one need one is called BMW BATTERY BST DIY REPAIR KIT

[@skipstjohn4845]

This a battery SAFETY terminal. It's purpose is to keep you from being in a fireball of a car when you are in an accident. What is your life and lives of your passengers worth?

[@houseofno]

What are the chances of you getting rearended and instantly barbecued in the post-Pinto era?

[@houseofno]

BMW cooked up this idea not because you're in dire danger of being in a fireball from a rear end accident, but rather because BMW engineers needed to find a way to charge you $400 for a battery cable, as if their intelligent battery system requiring you to electronically "register" a new battery with your car wasn't a sufficiently profitable dealer service magnet. My 1988 BMW 750iL has neither of these bizarre concepts baked into it. i am alive, well, as well as physically and economically healthy without them.

[@serafinzuniga6085]

That BST saved my ass 👍

[@davedolphin4542]

Air bag codes

[@TSPhotoAtlanta]

2 minutes in and it's commercials -- not even video, it's still illustrations and audio

[@DiscoFang]

T Smith Yes. And it doesn't really improve. Its a good indicator of the overall style & content.

[@jessicavaldez4172]

This is so annoying.. I’m having this problem on my first fucking bimmer.... bummer I should of stick with Mercedes 🙄

[@misterbeebe]

if it's the kit pn 61128387512, I'm seeing prices around $400. I sure would be interested to find the "half of two hundred" price! or, maybe there's a different pn?

[@strugglinNstrivin]

61123

[@geoffcrabtree657]

3.40 - If the BST blows the car will not start because it is the starter cable that has been disconnected by it.

[@thatcarlife6412]

Mine started just has codes

[@carlitos_pr7233]

Geoff Crabtree yo mine crank turn all the lights on but I won’t star

[@mazzaa1876]

Omg the intro half of the video 🤦‍♂️

[@joewigglesbitch]

That intro is too loooooonnnnnngggggg get on with it already

[@Lyfe_on_My_Terms]

WiggleWorx lmaooo

[@tsskage]

Not true

[@rlinhube]

Good way to drown if car goes in water and you can't roll the windows down quickly.

[@jesperwall839]

Rudy Linhub Electric windows still works. It’s only the main positive cable to the motor that is disconnected.

[@nipos5734]

iklooveui juyesca ioplo ki bmw nji german kiop kisuyz europa ni amerik

[@YOUNGMON3Y205]

sound like bill Cosby a little bit

[@mcid77]

Please do away with the time-wasting intro music.

[@MrFluorescentify]

Whit this intro you get suicide skils...

[@dannyyee6923]

WTF was this? LMAO!!