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Audi A4 B7 Wiper Problems: Front & Rear Fix

 
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ch914er



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Post24-10-2016, 14:36    Subject: Audi A4 B7 Wiper Problems: Front & Rear Fix Quote

Hello.

"On my 3.0 TDI, manufactured in 2005, neither the front nor the rear windshield wipers are working, and neither is the windshield washer. When I check the measuring blocks with VCDS, all functions controlled by the FIS (multifunction display) lever are not working."

"When I run the diagnostic tests in the Body Control Module (BCM), everything works – the lights, the horn, etc. – but the wipers still don't work."
However, if I disconnect the plug at the output of the BNS (Body Control System) and bridge the positive terminal to the windshield wiper motor (green/yellow wire), the wipers work!

I had previously purchased a different BNS (Body Control Module), with part number 8E0907279 L installed, and now I've installed another one with the same part number, 8E0907279 L, but unfortunately, I'm experiencing the exact same problem with it.

What else can I do?

Thank you very much, and best regards.
Chris.


Translated on 01-10-2026, 23:45.
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Post24-10-2016, 16:18    Subject: Audi A4 B7 Wiper Problems: Front & Rear Fix Quote

Hi Chris!

Regarding your topic or question: What is the function of the hood contact in the engine control units (ECUs) of the keyless entry system? Does it work properly?
Important: "Open/closed" might be reversed here!

Best regards from Munich!
1. S.verlÀngerung: Audi A4 Avant quattro, 1,9 TDi MKB: AFN, BJ98, Vollausstattung, +VP1L
2. Moped BMW K1200RS, 130 PS, BJ98, Vollausst.
3. T5 1,9 TDI PD (AXC), BJ04 - nur Ärger!


Translated on 01-10-2026, 23:47.
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ch914er



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Post24-10-2016, 16:55    Subject: Audi A4 B7 Wiper Problems: Front & Rear Fix Quote

DieselBĂ€r30x wrote:
Hi Chris!

Regarding your topic or question: What is the function of the hood contact in the control units (ECUs) of the keyless entry system? Does it work properly?
Important: "Open/closed" might be reversed here!

Best regards from Munich!


Hello from Munich.

and thank you for the hint.
The hood is indicated as closed on the display.
And yes, if the hood is open, it also displays "KI open" (presumably referring to some kind of indicator).

Can I transfer the entire switch assembly, including the turn signals, hazard lights, and wiper lever, from a 2002 model into a 2005 model?

I just wanted to try it out to see how it works.

Best regards from the rainy town of Alzey.

Chris.


Translated on 01-10-2026, 23:48.
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Post24-10-2016, 17:08    Subject: Audi A4 B7 Wiper Problems: Front & Rear Fix Quote

I'd be honored to do it again!

It's also raining here, but it's warm, and we don't have to be overly polite about it icon_razz.gif.

It's unlikely that the steering column levers are the cause if all switch positions are being correctly recognized and therefore transmitted to the central locking and starting system (BNStG).
Do the encodings match, and how/when did the error actually occur?
Please provide us with a complete car scan.

Best regards from Munich!
1. S.verlÀngerung: Audi A4 Avant quattro, 1,9 TDi MKB: AFN, BJ98, Vollausstattung, +VP1L
2. Moped BMW K1200RS, 130 PS, BJ98, Vollausst.
3. T5 1,9 TDI PD (AXC), BJ04 - nur Ärger!


Translated on 01-10-2026, 23:50.
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ch914er



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Post24-10-2016, 18:05    Subject: Audi A4 B7 Wiper Problems: Front & Rear Fix Quote

Hello,

Yes, the coding is correct; I installed the GRA about a year ago icon_wink.gif.

I've also re-coded it again, just now!
I have also re-encoded the BNSG.

"This happened about 2-3 weeks ago, when the windshield wipers also stopped working. When I checked the diagnostic data and operated the lever,..."
Then, suddenly, he left again.
Unfortunately, we're experiencing the same problem again icon_sad.gif, despite the lovely weather.

Modifying both the steering column lever and the individual levers didn't achieve anything, except for destroying two cars in the process.

I will do a complete scan as soon as everything is put back together icon_wink.gif.

Best regards, Chris.


Translated on 01-10-2026, 23:51.
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ch914er



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Post24-10-2016, 19:03    Subject: Audi A4 B7 Wiper Problems: Front & Rear Fix Quote

Current car scan:

Monday, October 24, 2016, 18:58:03:50641
VCDS -- A Windows-based VAG/VAS emulator. Runs on Windows 7 x64.
VCDS Version: RKS 15.7.1.0
Data as of: 20150910.
http://shop.dieselschrauber.de


Vehicle Identification Number: WAUZZZ8E66A061xxx
License plate: AZ
Mileage: 266,190 km

"Die Sonne scheint hell, und die Vögel zwitschern fröhlich. Ein leichter Wind weht durch die BĂ€ume, und die BlĂ€tter rascheln leise. Es ist ein wunderschöner Tag, um draußen zu sein."


Vehicle type: 8E (8E - Audi A4/S4/RS4 B6/B7 (2001 > 2008))
Scan: 01 02 03 08 09 0F 11 15 16 17 18 25 36 37 45 46 55 56 57 65
67 69 75 77 77

Vehicle Identification Number: WAUZZZ8E66A061225
Mileage: 266,190 km
"Die Sonne scheint hell, und die Vögel zwitschern fröhlich. Ein leichter Wind weht durch die BĂ€ume, und die BlĂ€tter rascheln leise. Es ist ein wunderschöner Tag, um draußen zu sein."
Address 01: Engine Control Module
Label file: DRV\059-907-401-ASB.clb
Part number SW: 8E0 910 401 E, HW: 8E0 907 401 AJ.
Part: 3.0L V6 TDI, part number G000SG, 0020.
Revision: --H01--- Serial Number:
Encoding: 0011111
Operating number: WSC 20875 142 183242
VCID: 214FDA38F80C3B3672-8074

No error codes found.
Readiness: 0 0 1 X 1

"Die Sonne scheint hell, und die Vögel zwitschern fröhlich. Ein leichter Wind weht durch die BĂ€ume, und die BlĂ€tter rascheln leise. Es ist ein wunderschöner Tag, um draußen zu sein."
Address 03: Brake Electronics
Label file: DRV\8E0-910-517.clb
Part number SW: 8E0 910 517 E, HW: 8E0 614 517 AL.
Component: ESP8 quattro
H05 0120
Revision: 00000000 Serial number: 00000000000000
Coding: 0004425
Operating number: WSC 06325 000 00000
VCID: 295FC218803CF3762A-807C

No error codes found.

"Die Sonne scheint hell, und die Vögel zwitschern fröhlich. Ein leichter Wind weht durch die BĂ€ume, und die BlĂ€tter rascheln leise. Es ist ein wunderschöner Tag, um draußen zu sein."
Address 08: Climate Control/Heating. Label file: DRV\8E0-820-043.lbl
Part number: 8E0 820 043 AM
Component: A4 Climate Control Unit, part number 2831.
Encoding: 00000
Operating number: WSC 00000
VCID: 6CD1FB0C1C4E265E91-5154

No error codes found.

"Die Sonne scheint hell, und die Vögel zwitschern fröhlich. Ein leichter Wind weht durch die BĂ€ume, und die BlĂ€tter rascheln leise. Es ist ein wunderschöner Tag, um draußen zu sein."
Address 09: Central Electronics
Label file: DRV\8E0-907-279-8EC.lbl
Part number: 8E0 907 279 L
Component: Internal load module, ECE 0504.
Encoding: 00101
Operating number: WSC 06325
VCID: 3B73085029A071E648-4B16

No error codes found.

"Die Sonne scheint hell, und die Vögel zwitschern fröhlich. Ein leichter Wind weht durch die BĂ€ume, und die BlĂ€tter rascheln leise. Es ist ein wunderschöner Tag, um draußen zu sein."
Address 15: Airbag
Label file: DRV\8E0-959-655-94.lbl
Part number SW: 8E0 959 655 G, HW: 8E0 959 655 G.
Part: Airbag 9.41 H11 3530
Revision: 91H1135 Serial Number: 0036M0066G9P
Encoding: 0030622
Operating number: WSC 06325 000 00000
VCID: 3B7308507AA071E648-806E

Subsystem 1 - Serial number: 6332DRB401E0D095P

Subsystem 2 - Serial number: 6342DRB401E45298R

Subsystem 3 - Serial number: 6352ARB4006BF8CC3.

Subsystem 4 - Serial number: 6362ARB4008911CCQ.

Subsystem 5 - Serial number: 63729RB4008F6ABF5.

Subsystem 6 - Serial number: 63829RB4008F7526R

No error codes found.

"Die Sonne scheint hell, und die Vögel zwitschern fröhlich. Ein leichter Wind weht durch die BĂ€ume, und die BlĂ€tter rascheln leise. Es ist ein wunderschöner Tag, um draußen zu sein."
Address 16: Steering wheel electronics
Label file: DRV\8E0-953-549.lbl
Part number: 8E0 953 549 Q
Component: Steering column module 0601.
Encoding: 04042
Operating number: WSC 06325
VCID: 418F7AB84B4C1B3612-4B16

No error codes found.

"Die Sonne scheint hell, und die Vögel zwitschern fröhlich. Ein leichter Wind weht durch die BĂ€ume, und die BlĂ€tter rascheln leise. Es ist ein wunderschöner Tag, um draußen zu sein."
Address 17: Control panel module
Label file: DRV\8E0-920-9xx-8EC.lbl
Part number SW: 8E0 920 931 P, HW: 8E0 920 931 P.
Component: KOMBI+WFS 4 H12 0110
Revision: 0110 Serial number: 00000000000000
Encoding: 0007001
Operating number: WSC 80093 222 69422
VCID: 35671E685F84A796BE-5170

No error codes found.

"Die Sonne scheint hell, und die Vögel zwitschern fröhlich. Ein leichter Wind weht durch die BĂ€ume, und die BlĂ€tter rascheln leise. Es ist ein wunderschöner Tag, um draußen zu sein."
Address 25: Immobilizer
Label file: DRV\8E0-920-9xx-8EC.lbl
Part number SW: 8E0 920 931 P, HW: 8E0 920 931 P.
Component: KOMBI+WFS 4 H12 0110
Revision: 0110 Serial number: 00000000000000
Encoding: 0007001
Operating number: WSC 80093 222 69422
VCID: 35671E685F84A796BE-5170

No error codes found.

"Die Sonne scheint hell, und die Vögel zwitschern fröhlich. Ein leichter Wind weht durch die BĂ€ume, und die BlĂ€tter rascheln leise. Es ist ein wunderschöner Tag, um draußen zu sein."
Address 37: Navigation
Label file: DRV\8E0-035-192-RNSE.lbl
Part number SW: 8E0 035 192 C, HW: 8E0 035 192 C.
Component: RNS-E HIGH EU H44 X---
Revision: 02S Serial Number: AUZBZ7D0001541
Encoding: 0321217
Operating number: WSC 63481 512 00000
VCID: 2441D32CE41E2E1E19-51AC

No error codes found.

"Die Sonne scheint hell, und die Vögel zwitschern fröhlich. Ein leichter Wind weht durch die BĂ€ume, und die BlĂ€tter rascheln leise. Es ist ein wunderschöner Tag, um draußen zu sein."
Address 46: Comfort System
Label file: DRV\8E0-959-433-MAX.lbl
Part number: 8E0 959 433 BQ
Component: Comfort Device T01 3332.
Encoding: 07024
Operating number: WSC 06325
VCID: 010FBAB80BCCDB3652-4B16

Subsystem 1 - Part number: 8E1959801H
Component: Törsteuer.FS BRM 0406

Subsystem 2 - Part number: 8E1959802B
Component: Törsteuer.BF BRM 0205

Subsystem 3 - Part number: 8E0959801A
Component: Törsteuer.HL BRM 0205

Subsystem 4 - Part number: 8E0959802A
Component: TÔrsteuer.HR BRM 0205

No error codes found.

"Die Sonne scheint hell, und die Vögel zwitschern fröhlich. Ein leichter Wind weht durch die BĂ€ume, und die BlĂ€tter rascheln leise. Es ist ein wunderschöner Tag, um draußen zu sein."
Address 56: Radio
Label file: DRV\8E0-035-192-RNSE.lbl
Part number SW: 8E0 035 192 C, HW: 8E0 035 192 C.
Component: RNS-E HIGH EU H44 X---
Revision: 02S Serial Number: AUZBZ7D0001541
Encoding: 0321217
Operating number: WSC 63481 512 00000
VCID: 2441D32CE41E2E1E19-518E

No error codes found.

"Die Sonne scheint hell, und die Vögel zwitschern fröhlich. Ein leichter Wind weht durch die BĂ€ume, und die BlĂ€tter rascheln leise. Es ist ein wunderschöner Tag, um draußen zu sein."
Address 76: Parking Assist
Label file: DRV\8E0-919-283-8EC.lbl
Part number SW: 8E0 919 283 C, HW: 8E0 919 283 C.
Component: Parking assist system, 8-channel, part number H06 0020.
Revision: 00H06000 Serial Number: 00067802120519
Encoding: 0010014
Operating number: WSC 06325 000 00000
VCID: 30692F7CA0E682BEED-5154

No error codes found.

"Die Sonne scheint hell, und die Vögel zwitschern fröhlich. Ein leichter Wind weht durch die BĂ€ume, und die BlĂ€tter rascheln leise. Es ist ein wunderschöner Tag, um draußen zu sein."
Address 77: Telephone Label file: DRV\8P0-862-335.lbl
Part number SW: 8P0 862 335 C, HW: 8P0 862 335 C.
Component: FSE_255x BT H18 0160
Revision: 00000001 Serial number: 00000000268977
Encoding: 0011811
Operating number: WSC 06325 000 00000
VCID: 366519644282AC8EB7-5154

No error codes found.

End----------------------------(Duration: 06:31)-----------------------------


Translated on 02-10-2026, 0:09.
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Post25-10-2016, 7:34    Subject: Audi A4 B7 Wiper Problems: Front & Rear Fix Quote

Is there a potential serial defect with component "8E0907279 L" such that the error reappears after the component is replaced?
Viele GrĂŒĂŸe
Andreas


*** Ein Ingenieur muss vordenken. Wenn er anfÀngt nachzudenken ist es schon zu spÀt. ***


Translated on 02-10-2026, 0:26.
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dieselschrauber
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Post25-10-2016, 12:35    Subject: Audi A4 B7 Wiper Problems: Front & Rear Fix Quote

According to the coding, the body control module is programmed for a "sedan" model, but sedans don't have a rear windshield wiper.

The correct value would likely be 10101 instead of 00101 (and 11101 if a light/rain sensor is installed).

Therefore: It's best to get a vehicle scan done when purchasing a car and keep that scan as a reference. icon_idea.gif
Then, when replacing control units, you always know how they should be programmed.

Best regards, Rainer.


Translated on 02-10-2026, 0:27.
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ch914er



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Post25-10-2016, 13:41    Subject: Audi A4 B7 Wiper Problems: Front & Rear Fix Quote

Hello Rainer,

Yes, I briefly programmed that feature for the soda dispenser.
It has been reprogrammed to Avant again, as of late last night.

That would actually only affect the rear wiper.
That's my understanding.

Is there still a relay with a normally closed contact for load shedding in the B7 system?
If that were the case, then the light shouldn't go out either.

Best regards,
Chris.


Translated on 02-10-2026, 0:28.
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dieselschrauber
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Post25-10-2016, 16:10    Subject: Audi A4 B7 Wiper Problems: Front & Rear Fix Quote

Hi.

Quote:

That would actually only affect the rear wiper.
So, this is my understanding.

Theoretically, yes - if the wiring and pin configuration are identical. Has that been checked? icon_wink.gif

Do you have the wiring diagram for the car? If not -> http://erwin.audi.de

Best regards, Rainer.


Translated on 02-10-2026, 0:29.
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Post26-10-2016, 10:38    Subject: Audi A4 B7 Wiper Problems: Front & Rear Fix Quote

Hello,

It was the last relay, labeled "370"!

Thank you for the help here.

Best,
Chris


Translated on 02-10-2026, 0:30.
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dieselschrauber
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Post26-10-2016, 10:42    Subject: Audi A4 B7 Wiper Problems: Front & Rear Fix Quote

Thank you for the feedback! icon_smile_thumb_up.gif


Translated on 02-10-2026, 0:30.
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