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  #1  
Old 27-01-2017, 07:41 AM
langlands langlands is offline
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Default Airbag warning light

After a runout the airbag light came on. The management system registers it as a left hand airbag sensor fault. Anyone what could cause this? Sometimes it goes away when switched off and on but comes back after a few mins
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Old 27-01-2017, 07:54 AM
Fat Tony Fat Tony is offline
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There's a small modified bit of loom available, which I think is fitted under the passenger seat. Getting that fitted to mine prevented any further airbag warning light issues, however other than the light coming on, I don't know if it was a sensor fault on mine. If your MC doesn't have that loom fitted, it may be the culprit?
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Old 27-01-2017, 02:51 PM
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Dave P Dave P is offline
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Might be worth checking the connection on the seat belt pre - tensioner as many faults are due to movement and dry joints - a spray with electrical contact cleaner cured my airbag light but it did need to be reset




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Old 28-01-2017, 11:51 AM
kwoffa kwoffa is offline
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If you have been busy cleaning the inside of your car,ie moving the seats back and forth it will be the wiring loom,the extension lead is available from BMW (some clever people solder in new bits of wire themselves) i bought two extensions,and had them installed didnt take long and never had another problem !
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Old 06-09-2017, 09:58 AM
langlands langlands is offline
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It's MOT time and I need to fix the airbag warning light.

I've had the seats out and cleaned the connections. Still failing.

Fault code seems to indicate a fail with the left side air bag sensor.

Question is, Where is the side sensor?

Any help appreciated.
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Old 06-09-2017, 01:42 PM
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Dave P Dave P is offline
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Quote:
Originally Posted by langlands View Post
It's MOT time and I need to fix the airbag warning light.

I've had the seats out and cleaned the connections. Still failing.

Fault code seems to indicate a fail with the left side air bag sensor.

Question is, Where is the side sensor?

Any help appreciated.
Under the carpet I think?
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Old 06-09-2017, 01:44 PM
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http://www.bimmerforums.com/forum/sh...-compatibility
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Old 06-09-2017, 03:32 PM
Jon_Bmw Jon_Bmw is offline
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I suspect if you need to change the airbag module it will need to be coded to the car.

This is definitely the case with my 2003 760. The Z3's might be different.

I am relatively computer savvy, know a bit about diagnostics and I still found it a bit of a challenge/nerve-racking to do and I had a step by step guide.. Mine was slightly more complicated by the fact I was using a second hand Ecu control module and had to code the correct VIN to the module as well.

To give you an idea, the principle is here;

I'm sharing Step by Step to edit VIN, Flash, Code to Default, Clear Errors and Start System Time of the Airbag Gateway Module.

INPA: UIF (User Information Field) Report
1-Open INPA>select your car model (E60)>Functional Jobs>F3 UIF
2-You'll see a list of all control units with their ZUSB number and VIN
3-Print to PDF the report.
4-Identify the ZUSB numbers without your VIN and copy from the PDF and close INPA

WinKFP: Edit VIN and Flash Module
5-Open WinKFP (Load SPDaten files google it)
6-Select comfort mode
7-Then click find ZUSB
8-Paste the number you copied
9-this will go straight to the right ZUSB
10-Then enter your full VIN and then click on done
11-Double check that the module your going to flash it's safe to flash with your cable and the battery needs to be connect to another power source
12-Click on update ZUSB (this will flash the module with SPDaten files and re-write the VIN)

NCExpert: Code to Default
13- Open NCExpert
14-Load profile -> Expertmode -> F1 -> F3 -> choose E60 from the list -> choose any module you want from this list -> now click F6 Back -> select F4 Process ECU -> choose Module -> now click ReadECU -> close the notepad window that showed up after the module was read.
15-Press F5 for basic functions -> Select "coapiReadSgGetFswPsw" and click Ok -> Select F2 "job" select SG_CODIEREN and press ok -> Press F3 Execute job and wait for the buttons to become active, when active it's all done.

INPA: Identification Report and Clear Errors
16-Open INPA>select your car model (E60)>Functional Jobs>Identification
17-Print the report to PDF.
18-Look in the SGBD column the module you replace
19-Clear (EM, IM and HM) Errors and Close INPA

Ediabas Tool32: Start System Time
20-Start Tool32
21-Select File->Load SGBD, Group file
22-Browse to the EDIABAS\ECU folder, and search for the file name based on the listed SGBD column. Can be more than 1 file.
23-In the Left of the window select systemzeit_lesen (write)
24-In the middle of the window Argument (value of) type 1 in the dropdown menu
25-double click systemzeit_lesen and done
26 -double click systemzeit_starten. (no arguments)


The problem is that you are working with an airbag, and in the back of my mind I kept thinking, what if I press the wrong button and the airbag goes off in my face.

I'd suggest unless you are ultra keen that it is now probably a specialist job (IF IT NEEDS CODING).

Edited to Add:

Mine was a control module failure. An e66 has around 13 for the various different airbags. Very depressing. If this is just a sensor fault, then it probably won't need coding, so all the guff above you might be able to ignore! :)

Last edited by Jon_Bmw; 06-09-2017 at 03:37 PM.
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  #9  
Old 06-09-2017, 04:18 PM
langlands langlands is offline
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Thanks for the worrying update...

But I think my problem may just be the sensor. But where is it located on the car?????? It says it's the left side sensor faulty
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  #10  
Old 06-09-2017, 04:21 PM
Jon_Bmw Jon_Bmw is offline
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See Daves link above my post. That shows it well.
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