Air bag light

[chunky79]

I'm going to try and keep my story as short as possible here. About 6 weeks ago i had a coil pack fail on my B6 S4. I brought 1 from audi and went through each one trying to find which one was faulty. In the end, i managed to make another 1 fail while going through them. I then brought 7 more and fit them. I had to remove the MAF to get to the one bank and like a dick i turned the ign on with all coils in but maf disconnected
I put all the parts back together and dis connected the battery to try and reset the air bag light (was told this would work by a mate), well it doesn't!!
I now have vagcom thanks to Nigel ans performed a scan last night. Got this come up -
Sunday,18,October,2009,14:52:03:42335
VCDS Version: Release 908.0
Data version: 20090911


Address 15: Airbags Labels: 8E0-959-655-84.lbl
Control Module Part Number: 8E0 959 655 B
Component and/or Version: Airbag 8.4EP 3002
Software Coding: 0010602
Work Shop Code: WSC 63251 000 00000
2 Faults Found:

00474 - Control Module for Immobilizer
004 - No Signal/Communication - Intermittent
01794 - Control Module - Incorrect Chassis (VIN) Number
000 - - - Intermittent
Looking at the ross tech site it says the air bag control module needs re programming to change the vin number.
Why would removing the battery do this?

This was the short story too!!!

Cheers
Dunc

[Sebastian]

Post a complete Auto-Scan from the entire vehicle, the 01794 just by itself is not necessarily easy to diagnose.

[chunky79]

I tried to do the adaption in the air bag section tonight (081 channel) and then add new value 02951 but it won't let me do it. Went intoprogramme options and ran a test, it comes up with can bus not ready or connected. Any idea's?

Dunc

[Sebastian]

Please read my above reply and post the data requested.

[chunky79]

Ok mate. Will have to do it tomorrow cause the laptop battery is almost flat.
Thanks for the reply.

Dunc

[chunky79]

Please read my above reply and post the data requested.

Tuesday,20,October,2009,19:54:05:42335
VCDS Version: Release 908.1
Data version: 20091018


Chassis Type: 8E - Audi A4 B6/B7
Scan: 01 02 03 08 09 0F 11 15 16 17 18 36 37 45 46 55 56 57 65 67
69 75 76 77

VIN: WAUZZZ8EX4A123688 Mileage: 121240km/75335miles
-------------------------------------------------------------------------------
Address 01: Engine Labels: 079-910-560-BBK.lbl
Part No SW: 8E0 910 560 HW: 8E0 907 560
Component: 4.2L V8/5V 0040
Coding: 0011711
Shop #: WSC 63251 000 00000

No fault code found.
Readiness: 0000 0000

-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 8E0-614-517.lbl
Part No: 8E0 614 517 Q
Component: ABS/ESP allrad 3033
Coding: 04595
Shop #: WSC 06435

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC Labels: 8E0-820-043.lbl
Part No: 8E0 820 043 AC
Component: A4 Klimaautomat 1319
Coding: 00000
Shop #: WSC 63251

1 Fault Found:
01794 - Control Module - Incorrect Chassis (VIN) Number
35-00 - -

-------------------------------------------------------------------------------
Address 09: Cent. Elect. Labels: 8E0-907-279-8E2.lbl
Part No: 8E0 907 279 F
Component: int. Lastmodul RDW 0517
Coding: 00011
Shop #: WSC 63251

1 Fault Found:
01794 - Control Module - Incorrect Chassis (VIN) Number
35-00 - -

-------------------------------------------------------------------------------
Address 15: Airbags Labels: 8E0-959-655-84.lbl
Part No: 8E0 959 655 B
Component: Airbag 8.4EP 3002
Coding: 0010602
Shop #: WSC 63251 000 00000

2 Faults Found:
00474 - Control Module for Immobilizer
004 - No Signal/Communication - Intermittent
01794 - Control Module - Incorrect Chassis (VIN) Number
000 - - - Intermittent

-------------------------------------------------------------------------------
Address 16: Steering wheel Labels: 8E0-953-549.lbl
Part No: 8E0 953 549 S
Component: Lenksáulenmodul 0611
Coding: 01012
Shop #: WSC 63251

1 Fault Found:
01794 - Control Module - Incorrect Chassis (VIN) Number
35-00 - -

-------------------------------------------------------------------------------
Address 17: Instruments Labels: 8E0-920-9xx-8E2.lbl
Part No: 8E0 920 980 L
Component: KOMBI+WEGFAHRS. RB4 D36
Coding: 01400
Shop #: WSC 00198

Part No: 23688
Component: AUZ6Z0C0157838
23688 AUZ6Z0C0157838

No fault code found.

-------------------------------------------------------------------------------
Address 45: Inter. Monitor Labels: 8E0-951-177.lbl
Part No: 8E0 951 177
Component: Innenraumueberw. 0704
Coding: 00001
Shop #: WSC 00000

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv. Labels: 8E0-959-433-MAX.lbl
Part No: 8E0 959 433 BC
Component: Komfortgerát T3B 1311
Coding: 07115
Shop #: WSC 63251

Part No: 8E2959802B
Component: Tõrsteuer.FS BRM 0003

Part No: 8E2959801B
Component: Tõrsteuer.BF BRM 0003

Part No: 8E0959801A
Component: Tõrsteuer.HL BRM 0004

Part No: 8E0959802A
Component: Tõrsteuer.HR BRM 0004

2 Faults Found:
01134 - Alarm Horn (H12)
37-10 - Faulty - Intermittent
01370 - Alarm triggered by Interior Monitoring
35-00 - -

-------------------------------------------------------------------------------
Address 55: Xenon Range Labels: 4Z7-907-357.lbl
Part No: 4Z7 907 357
Component: dynamische LWR D09
Coding: 00060
Shop #: WSC 63251

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio Labels: 8E0-035-1xx-56.lbl
Part No: 8E0 035 195 M
Component: symphony II NP2 0400
Coding: 01200
Shop #: WSC 65536

No fault code found.

End ---------------------------------------------------------------------

[Sebastian]

Problem is the cluster, not the other modules. Cluster lost VIN due to internal software error. Only real solution would be to replace the cluster. Repairing the cluster is possible but besides that only a few people can do it, it's only a temporary fix and the problem will arise again.

[chunky79]

Thanks Sebastian

Which cluster? The main dash with the rev counter?

Dunc

[Sebastian]

Yep, Audi had released a TPI about this a while back - so this is a known problem.

http://wiki.ross-tech.com/index.php/01794

[chunky79]

Cheers.
Best get looking at the price's then hadn't i

[Sebastian]

Indeed, as said before there are people out offering a temporary fix but obviously that ain't for free either. Depending on how long you wanna keep the car a new cluster might be the best choice, used isn't an option since most have the same problem as well (sooner or later).

[chunky79]

£530 for the cluster from audi. I take it it is a dealer only part. Plus you have to give them the part number first!!
Is it an easy thing to replace?

[chunky79]

Is there any way i cn get find the part number of the clucter with vag-com?
It's not the instrument labels part number is it???

[Sebastian]

8E0-920-980-L would be the part number of the old unit, current replacement would be 8E0-920-981-FX. Old part gets traded in and you get a discounted new one.

[chunky79]

Nice one sebastian. Was told by a local audi dealer that the factory would not accept the exchange part back if the part number was different? Yet another dealer told me that the part superseed's so expect the number to be different!
better see if i can get it cheaper than the £530

[Sebastian]

Correct, part number changes but in any case they should be fine with "this" old one.

[chunky79]

Just a quick one people.
I have found a cluster but it is for a usa s4. What would the difference's be?
Would it just be that the digital display show's km and not mile's or would there be other issue's?
could the km be changed in vag-com if this is the case?

cheers

Dunc

[NHN]

USA uses mph iirc from my travels around the US.

[Sebastian]

US Clusters usually lack the ability to have flexible service intervals and some other features, so they are unlikely to be an option. Not sure if it was really necessary to bring this topic back from the dead.