Audi A3 8P Stop start not working

Knockout King

Registered User
Hi all

I am new to this website and I was wondering if anyone can point me in the right direction please.


I have a 2012 Audi A3 8P S line Black edition 140 bhp and for some reason my stop/start is no longer working. As a result, I connected my genuine VCDS cable and checked the soot levels for the DPF filter and the readings are ok (9 grams) and I have no Engine light or glow plug/DPF light on the cluster. The car drives spot on with no problems what so ever.

So I decided to run a scan on my car using VCDS and I got the following errors.

Address 08: Auto HVAC Labels: 8P0-820-043.lbl
Part No SW: 8P0 820 043 BM HW: 8P0 820 043 BM
Component: KlimavollautomatH09 0180
Revision: 000905 Serial number: 8P0820043BM
Shop #: WSC 00000 000 00000
VCID: 78F98F2E0B3CDD462B-802C
1 Fault Found:
00532 - Supply Voltage B+
002 - Lower Limit Exceeded - Intermittent
Freeze Frame:
Fault Status: 00100010
Fault Priority: 1
Fault Frequency: 3
Reset counter: 160
Mileage: 119968 km
Time Indication: 0
Date: 2020.10.04
Time: 14:53:01
Freeze Frame:
Voltage: 10.30 V

Address 09: Cent. Elect.
Cannot be reached
Unable to communicate with address 09. Are you sure the doors are unlocked?

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533) Labels:. 7N0-907-530-V2.clb
Part No SW: 7N0 907 530 S HW: 7N0 907 530 J
Component: J533 Gateway H43 1632
Revision: H43 Serial number: 040612F1001907
Coding: 352103
Shop #: WSC 06314 000 00000
VCID: 408927CED36C558653-8014
1 Fault Found:
00470 - Company Comfort Databus in Single Wire
011 - Open Circuit
Freeze Frame:
Fault Status: 01101011
Fault Priority: 3
Fault Frequency: 16
Reset counter: 156
Mileage: 121200 km
Time Indication: 0
Date: 2020.11.13
Time: 18:24:24

Address 46: Central Conv.
Cannot be reached


Address 56: Radio Labels: 8J0-035-1xx-56.clb
Part No SW: 8P0 035 186 AB HW: 8P0 035 186 AB
Component: R Concert2+ H06 0293
Revision: 00H06000 Serial number: AUZ1Z3M3167411
Coding: 0710101
Shop #: WSC 06314 000 00000
VCID: 72EDBD066D40B71615-8026

1 Fault Found:
01044 - Control Module Incorrectly Coded
000 - -
Freeze Frame:
Fault Status: 01100000
Fault Priority: 5
Fault Frequency: 1
Reset counter: 255
Time Indication: 15


I definitely didnt have these errors 2 months ago. The only error i had 2 months ago was the radio fault 01044. This is because the car previously had a pioneer stereo system but this was changed back to the original audi concert about 6 months ago and so i do not think this is connected to the stop start problem im having.

Can anyone help me with these fault codes and any tips on how to correct these errors.

Any help would be greatly appreciated.

Thanks





Friday,20,November,2020,19:10:51:61334
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 20.4.2.0 (x64)
Data version: 20200730 DS317.0
www.Ross-Tech.com
VIN: License Plate:
Mileage: 121280km-75359mi Repair Order: stopstart
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
Chassis Type: 8P-AU35 (7N0)
Scan: 01 03 08 09 15 16 17 19 25 42 44 46 52 55 56 61 62 72 77
VIN: Mileage: 121280km-75359miles
01-Engine -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
04-Steering Angle -- Status: OK 0000
08-Auto HVAC -- Status: Malfunction 0010
09-Cent. Elect. -- Status: Malfunction 0010
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: Malfunction 0010
25-Immobilizer -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
55-Headlight Range -- Status: OK 0000
56-Radio -- Status: Malfunction 0010
61-Battery Regul. -- Status: OK 0000
62-Door, Rear Left -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
77-Telephone -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine (J623-CFFB) Labels:. 03L-906-018-CFF.clb
Part No SW: 03L 906 018 AB HW: 03L 906 018 AG
Component: R4 2.0l TDI H28 9982
Revision: 41H28--- Serial number: AUX7Z0L5FN80M7
Coding: 00190012040501080000
Shop #: WSC 58788 004 1048576
ASAM Dataset: EV_ECM20TDI01103L906018AB 003016
ROD: EV_ECM20TDI01103L906018AB.rod
VCID: 6ADDA5668D907FD6AD-803E
No fault code found.
Readiness: 0 0 0 0 0
-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104) Labels:. 1K0-907-379-60EC1F.clb
Part No SW: 1K0 907 379 BL HW: 1K0 907 379 BL
Component: ESP MK60EC1 H31 0152
Revision: 00H31001
Coding: 1342401249220003C80F02E7921F0092390800
Shop #: WSC 06314 123 12345
VCID: 7DF79E3AE41EF86E78-8028
No fault code found.
-------------------------------------------------------------------------------
Address 08: Auto HVAC Labels: 8P0-820-043.lbl
Part No SW: 8P0 820 043 BM HW: 8P0 820 043 BM
Component: KlimavollautomatH09 0180
Revision: 000905 Serial number: 8P0820043BM
Shop #: WSC 00000 000 00000
VCID: 78F98F2E0B3CDD462B-802C
1 Fault Found:
00532 - Supply Voltage B+
002 - Lower Limit Exceeded - Intermittent
Freeze Frame:
Fault Status: 00100010
Fault Priority: 1
Fault Frequency: 3
Reset counter: 160
Mileage: 119968 km
Time Indication: 0
Date: 2020.10.04
Time: 14:53:01
Freeze Frame:
Voltage: 10.30 V
-------------------------------------------------------------------------------
Address 09: Cent. Elect.
Cannot be reached
Unable to communicate with address 09. Are you sure the doors are unlocked?
-------------------------------------------------------------------------------
Address 15: Airbags (J234) Labels:* 8P0-959-655-10.clb
Part No SW: 8P0 959 655 S HW: 8P0 959 655 S
Component: Airbag AU1042 H10 0250
Revision: -------- Serial number: 003JU007FHBG
Coding: 30314238303830303037554A305238503053
Shop #: WSC 06314 000 00000
ASAM Dataset: EV_Airba10AURB4 001001
ROD: EV_Airba10AURB4.rod
VCID: 52AD1D860500D716F5-8006
Crash sensor for side airbag: driver side:
Serial number: 3572DRB40000EAB88273
Crash sensor for side airbag: front passenger side:
Serial number: 3582DRB40000EAB45996
Crash sensor for side airbag: rear: driver side:
Serial number: 35128RB400006B95AE1V
Crash sensor for side airbag: rear: passenger side:
Serial number: 35228RB400006BCAF92+
Crash sensor for front airbag: driver side:
Serial number: 35547RB400006BB77B9%
Crash sensor for front airbag: front passenger side:
Serial number: 35647RB400006BB7B1A
No fault code found.
-------------------------------------------------------------------------------
Address 16: Steering wheel Labels: 8P0-953-549.lbl
Part No SW: 8P0 953 549 K HW: 8P0 953 549 K
Component: J0527 H38 0070
Coding: 0004012
Shop #: WSC 06314 000 00000
VCID: 468531D631487BB669-8012
Subsystem 1 - Part No: XXXXXXXXXXX
Component: E0221 H06 0030
No fault code found.
-------------------------------------------------------------------------------
Address 17: Instruments Labels: 8P0-920-xxx-17-MY8.clb
Part No SW: 8P0 920 983 G HW: 8P0 920 983 G
Component: KOMBIINSTR. VDO H03 0360
Revision: D0H03004 Serial number: 2245L004002143
Coding: 0260428
Shop #: WSC 58788 004 1048576
VCID: 3E7559366998237621-806A
No fault code found.
-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533) Labels:. 7N0-907-530-V2.clb
Part No SW: 7N0 907 530 S HW: 7N0 907 530 J
Component: J533 Gateway H43 1632
Revision: H43 Serial number: 040612F1001907
Coding: 352103
Shop #: WSC 06314 000 00000
VCID: 408927CED36C558653-8014
1 Fault Found:
00470 - Company Comfort Databus in Single Wire
011 - Open Circuit
Freeze Frame:
Fault Status: 01101011
Fault Priority: 3
Fault Frequency: 16
Reset counter: 156
Mileage: 121200 km
Time Indication: 0
Date: 2020.11.13
Time: 18:24:24
-------------------------------------------------------------------------------
Address 25: Immobilizer Labels: 1K0-920-xxx-25.clb
Part No SW: 8P0 920 983 G HW: 8P0 920 983 G
Component: KOMBIINSTR. VDO H03 0360
Revision: D0H03004 Serial number: AUX7Z0L5FN80M7
Shop #: WSC 00000 000 00000
VCID: 3E7559366998237621-806A
No fault code found.
-------------------------------------------------------------------------------
Address 42: Door Elect, Driver Labels: 8P0-959-801-MIN3.lbl
Part No SW: 8P0 959 801 Q HW: 8P0 959 801 Q
Component: Tuer-SG H04 0101
Coding: 0131764
Shop #: WSC 06314 000 00000
VCID: 499F3AEA205694CE84-801C
No fault code found.
-------------------------------------------------------------------------------
Address 44: Steering Assist Labels: 1K0-909-14x-GEN3.clb
Part No: 1K0 909 144 P
Component: EPS_ZFLS Kl. 233 3305
Revision: 00H22000
Shop #: WSC 02069 000 90108
VCID: 377B4C1246A2123EE2-8062
No fault code found.
-------------------------------------------------------------------------------
Address 46: Central Conv.
Cannot be reached
-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. Labels:. 1K0-959-702-MIN3.clb
Part No SW: 8P0 959 802 Q HW: 8P0 959 802 Q
Component: Tuer-SG H04 0101
Coding: 0131764
Shop #: WSC 06314 000 00000
VCID: 4A9D05E625509FD68D-801E
No fault code found.
-------------------------------------------------------------------------------
Address 55: Headlight Range (J431) Labels:| 8X0-907-357.clb
Part No SW: 8X0 907 357 C HW: 8X0 907 357 B
Component: ****LWR12**** H02 0012
Serial number: 120523-0002-131
Coding: 1163951010000100
Shop #: WSC 06314 000 00000
ASAM Dataset: EV_HeadlRegulBasic 005001
ROD: EV_HeadlRegulBasic.rod
VCID: 428D2DC6D560479645-8016
No fault code found.
-------------------------------------------------------------------------------
Address 56: Radio Labels: 8J0-035-1xx-56.clb
Part No SW: 8P0 035 186 AB HW: 8P0 035 186 AB
Component: R Concert2+ H06 0293
Revision: 00H06000 Serial number: AUZ1Z3M3167411
Coding: 0710101
Shop #: WSC 06314 000 00000
VCID: 72EDBD066D40B71615-8026
1 Fault Found:
01044 - Control Module Incorrectly Coded
000 - -
Freeze Frame:
Fault Status: 01100000
Fault Priority: 5
Fault Frequency: 1
Reset counter: 255
Time Indication: 15
-------------------------------------------------------------------------------
Address 61: Battery Regul. (J840) Labels:. 1K0-907-534.clb
Part No SW: 7N0 907 534 HW: 7N0 907 530 J
Component: Batt.regelung H43 1632
Serial number: 040612F1001907
Coding: F30F185A
Shop #: WSC 06314 000 00000
VCID: 71EFB20AA8468C0EEC-8024
Subsystem 1 - Part No SW: 1K0 915 181 H HW: 1K0 915 181 A
Component: J367-BDM H07 0180
Serial number: 00000000008900461749
No fault code found.
-------------------------------------------------------------------------------
Address 62: Door, Rear Left Labels: 8P4-959-801.lbl
Part No SW: 8P4 959 801 F HW: 8P4 959 801 F
Component: Tuer-SG H04 0050
Coding: 0131216
Shop #: WSC 06314 000 1012544
VCID: 428D2DC61D60479645-8016
No fault code found.
-------------------------------------------------------------------------------
Address 72: Door, Rear Right Labels: 8P4-959-802.lbl
Part No SW: 8P4 959 802 F HW: 8P4 959 802 F
Component: Tuer-SG H04 0050
Coding: 0131216
Shop #: WSC 06314 000 1012544
VCID: 438328C2027A4E9E4E-8016
No fault code found.
-------------------------------------------------------------------------------
Address 77: Telephone Labels: 8P0-862-335.lbl
Part No SW: 8P1 862 335 A HW: 8P1 862 335
Component: FSE_256x BT H44 0660
Revision: 00000000 Serial number: 00000005546591
Coding: 0001222
Shop #: WSC 06314 000 00000
VCID: 3567461A5CAEE02EF0-8060
No fault code found.
End-------------------------(Elapsed Time: 02:18)--------------------------
 

ab1702

Registered User
Stop start is associated with the cars battery so could the battery be on its way out or could there be something in the car that’s causing a slight drain on the battery?
 

ch1z64

C'mon you's bhoy's in Green
VCDS Map User
Silver Supporter
Change ur radio code and that should help to fix that fault.
Check battery with multimeter without engine running then check with engine running to see altenator is working voltage on battery will change if alt ok . Have you had the battery out for any length off time , do another autoscan then clear all dtc's once you correct radio coding
 

leonwilliams

Registered User
Mines did same they changed battery still same then module or something in the steering wheel been fine since then hope this helps

Sent from my SM-G960F using Tapatalk
 

NHN

Retrofitter - Audi - VW - Skoda - Seat
Site Sponsor
VCDS Map User
Fact 08 hvac has a voltage error, for me points to battery, charge with a ctek 8 stage, reconnect, clear error, SS should work again.
 

Knockout King

Registered User
Hi

Thank you all for all your comments and suggestions.

I connected a multi meter and the reading was 11.7 volts before the engine was started and 14.4 Volts once i started the engine. Does this mean my battery is ok?

I think this problem maybe connected to my radio code as the pioneer radio that was previously installed was put in by Halfords and they probably made some changes to the coding. Does anyone know how I can restore the radio code back to the original coding using VCDS as i now have the audi original concert installed?

Also why is VCDS showing this error:

Address 09: Cent. Elect.
Cannot be reached
Unable to communicate with address 09. Are you sure the doors are unlocked?
 

ch1z64

C'mon you's bhoy's in Green
VCDS Map User
Silver Supporter
Battery is fine when altenator is working , but somethung is pulling power from battery when engine not running i had this wirh my dash cam replaced battery and all is good now .
As for the error code if it is a clone vcds that could be ur problem why it ain't reading 09,
Take radio out check the diagram on top off unit to check correct wires are in the correct pin outs , as i would think there has been some pin changes when Pioneer was put in
 

NHN

Retrofitter - Audi - VW - Skoda - Seat
Site Sponsor
VCDS Map User
I'll
Hi

Thank you all for all your comments and suggestions.

I connected a multi meter and the reading was 11.7 volts before the engine was started and 14.4 Volts once i started the engine. Does this mean my battery is ok?

I think this problem maybe connected to my radio code as the pioneer radio that was previously installed was put in by Halfords and they probably made some changes to the coding. Does anyone know how I can restore the radio code back to the original coding using VCDS as i now have the audi original concert installed?

Also why is VCDS showing this error:

Address 09: Cent. Elect.
Cannot be reached
Unable to communicate with address 09. Are you sure the doors are unlocked?

I'll reply to your WhatsApp this evening.
 

Knockout King

Registered User
Thank you for all your help

I think the problem is the radio as i have removed the radio and the battery voltage returns back to normal so it looks like the radio was sucking power from the battery when the car was off.

I was wondering if you know if the cables are in the correct places for the radio (see attachement)?
 

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Knockout King

Registered User
Hi All

I have managed to fix all of the faults except this one:

Address 19: CAN Gateway (J533) Labels:. 7N0-907-530-V2.clb
Part No SW: 7N0 907 530 S HW: 7N0 907 530 J
Component: J533 Gateway H43 1632
Revision: H43 Serial number: 040612F1001907
Coding: 352103
Shop #: WSC 06314 000 00000
VCID: 408927CED36C558653-8014
1 Fault Found:
00470 - Company Comfort Databus in Single Wire
011 - Open Circuit
Freeze Frame:
Fault Status: 01101011
Fault Priority: 3
Fault Frequency: 16
Reset counter: 156
Mileage: 121200 km
Time Indication: 0
Date: 2020.11.13
Time: 18:24:24

My car's stop start is still not working and I suspect this error is connected to the HVAC hence the reason why the stop start is still not working. Does anyone know how I can fix this error. I am assuming it's something wrong with the wiring to the HVAC but how do I access that wire and where would it be located?
 

19ryanh93

Registered User
I have seen this single wire issue mentioned before.

I think(may be wrong) that the canbus uses two wires and one of them may be snapped or damaged somewhere.

theres this:
http://wiki.ross-tech.com/wiki/index.php/00470

And this:
https://www.audi-sport.net/xf/threads/00470-fault-code.159414/

google is your friend.

This cable is in the front drivers door I had it. I think it’s a purple cable. Mine had snapped in the flexi between the door and the body.

But when my S/S stopped working I replaced the battery and it worked fine. Just make sure if you do it’s an AGM one


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