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I've got the following airbag fault codes showing and have just been told that they have tried resetting the system but that the left side B pillar satellite definitely needs replacing.

SGM/ACSM/SBSR systems
[*]No message B,5,12,20 satellite B pillar left
[*]Deactivation satellite B pillar left
[*]Self test too few messages
[*]Fault during activation and deactivation of passenger airbag
[*]Undervoltage 93E7

Quote for parts and labour was £320+vat

I found this, which shows a lot of different part numbers for the same unit depending on year. Ideally I'd like to get a replacement unit from a breaker - any idea if they're interchangable or do I need to match what's already on the car?
http://www.realoem.com/bmw/showparts.do ... fg=65&hl=4

Thanks

I'll take a look at the one I have, all air bags were a-ok with the one I am breaking.

This is my one, let me know if its any good to ya, and it wont be any where near £300 for the part !!!

OP did you sort this out?

I still have this part if you want it.

Sorry mate - didn't spot your post at the time That part actually doesn't look quite right - the part I need is tapered (sort of like a "4" shape in profile).

Since then I've managed to get the part from the breakers. It appears it's just two plugs to connect, but I'm not sure where to actually find the unit. All I can see online is the diagram in the link in the previous post. Can anyone help with how I get at it?

If its the nr 2 part then its underneath the centre console bit - 4 8mm bolts hold it in.

It's part number 3. Can't work out if it's in the door, behind the door, or below the door.

omar wrote:It's part number 3. Can't work out if it's in the door, behind the door, or below the door.

Its below the drivers door, I took it one of these out yesterday!

omar wrote:It's part number 3. Can't work out if it's in the door, behind the door, or below the door.

From the WDS, it appears to be between the floor and the door, just forward of the rear edge of the door. It's the same on either side.

Thanks both - I'll have a go at getting to it tomorrow.

Ok the saga continues. The module has been replaced and the fault codes cleared. If I run the "clear errors and pre-drive test" function on the safety module in INPA the light goes out and stays out while driving. However it comes back on at each startup. The only fault code logged is that the new satellite module knows it is in the wrong car, but on INPA it says "would not trigger a warning light". I can't see any other codes logged in any of the relevant modules.



Can anyone walk me through how to code the new module to my car? Struggling to see where to go in DIS. Any other "secret" modules that can trip an airbag light? I've been through safety information module, and left and right B pillar satellites.

pretty sure that will still trigger a light, as I had exactly the same for ages.
I believe you can't "code in" second hand units, only those who have never been assigned a vehicle.

4 years, 1 day, 4 hours, 19 minutes
Do you think you will get an answer

pity its not SBSL as i have a new one which is spare!!!

Hi there

I have the same error on my Z4 at the moment I don't suppose you still have that new module by any chance?