Facelift VRS electrical gremlins

Followers

24 January, 201511 yr

I've been having a few issues with my VRS the last few weeks. It started when the car wouldn't lock or unlock from the fob which I put down to a flat battery but after changing the battery and trying the spare key, the issue persisted. When unlocking using the key, the alarm does not beep but beeps most of the time when locking. Up til now it would beep every time when locking or unlocking.

I then noticed that the head unit would no longer turn on and off with the engine and also the sidelights would stay on after the key was removed where they did not previously.

I initially thought the locking issues may have been related to something inside the door so took it apart and noticed a fair amount of verdegris around the door control module pins. I cleaned this up but the same issues persisted.

I then got a hold of VCDS which showed two faults. An intermittent fault with the drivers door light which i discovered was due to a wire being knocked out when putting the door back together and also an intermittent fault with the alarm sounder.

I tested the sounder in VCDS and it makes a noise every time so cleared the faults to see if they would reappear which they have not.

I also checked whether the key signal was being received and everything seems to look fine in VCDS with both keys and all button presses recognised perfectly.

Has anyone had any similar issues previously? I'm trying to avoid taking it to a dealer if I can as I assume with no fault codes showing they may just start swapping anything related to these systems and charging me for the privelage...

My full VCDS scan is below however this is after clearing the two faults which appear to be fixed now.

Saturday,24,January,2015,13:18:28:48177
VCDS -- Windows Based VAG/VAS Emulator
VCDS Version: 14.10.0.0 (x64)
Data version: 20141022

Chassis Type: 1Z (7N0)
Scan: 01 03 08 09 10 15 16 17 19 25 2E 42 44 46 52 56 62 72

VIN: TMBEH21Z0B2042411   Mileage: 110930km-68928miles

01-Engine -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
04-Steering Angle -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: OK 0000
10-Park/Steer Assist -- Status: OK 0000
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
25-Immobilizer -- Status: OK 0000
2E-Media Player 3 -- 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
56-Radio -- Status: OK 0000
62-Door, Rear Left -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
 
-------------------------------------------------------------------------------
Address 01: Engine (CEG)       Labels: 03L-906-022-CBA.clb
   Part No SW: 03L 906 022 RD    HW: 03L 906 022 GA
   Component: R4 2,0L EDC G000SG  5751  
   Revision: 13H10---    Serial number:               
   Coding: 0001072
   Shop #: WSC 73430 790 00000
   VCID: 78FFC6AA0B6F7AE157B-802D

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 BD    HW: 1K0 907 379 BD
   Component: ESP MK60EC1   H31 0108  
   Revision: 00H31001    
   Coding: 163B601C092600FC680F06E5901A0082340800
   Shop #: WSC 73430 790 00000
   VCID: 75E1CF9EDC7D07894CD-8020

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (J255)       Labels: 5K0-907-044.clb
   Part No SW: 3T0 907 044 AR    HW: 3T0 907 044 AR
   Component: Climatronic   H15 0401  
   Revision: 00005001    
   Coding: 0000000002
   Shop #: WSC 73430 790 00000
   ASAM Dataset: EV_Climatronic A01006
   ROD: EV_ClimaAutoBasis_SK12.rod
   VCID: 020BA44295B3203179F-8057

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels: 1K0-937-08x-09.clb
   Part No SW: 1K0 937 087 J    HW: 1K0 937 087 J
   Component: BCM PQ35  H   103 0615  
   Revision: 00103 AD    
   Coding: 48180AB8A05BB1C040100080110001E4420000AE524D8160800440040040
   Shop #: WSC 73430 790 00000
   VCID: 387F06AA8BEFBAE197B-806D

   Subsystem 1 - Part No: 1Z2 955 119 C  Labels: 1KX-955-119.CLB
   Component: Wischer 30081  22  0601 
   Coding: 00D7B7

   Subsystem 2 - Part No: 1Z0 951 171 
   Component: Innenraumuebe  008 5101 

   Subsystem 3 - Part No: 1K8 951 605 A
   Component: LIN BACKUP HO  H11 9004 

No fault code found.

-------------------------------------------------------------------------------
Address 10: Park/Steer Assist (J446)       Labels: 1Z0-919-475-V1.clb
   Part No SW: 1Z0 919 475 B    HW: 1Z0 919 475 
   Component: PARKHILFE 4K  H06 0006  
   Revision: --------    Serial number: 66641025105800
   Coding: 100002
   Shop #: WSC 73430 790 00000
   VCID: 408F6E4AD33FF2212FB-8015

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 1K0-909-605.lbl
   Part No SW: 1K0 909 605 T    HW: 1K0 909 605 T
   Component: Q4 AIRBAG VW8   020 2300  
   Revision: 05020000    Serial number: 0038PC1ZPT3C  
   Coding: 0020788
   Shop #: WSC 73430 790 00000
   VCID: 3D7117BE64CD9FC944D-8068

   Subsystem 1 - Serial number: 6332MSME56462A3DK

   Subsystem 2 - Serial number: 6342MSME5645373FK

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel (J527)       Labels: 5K0-953-569.clb
   Part No SW: 5K0 953 521 BL    HW: 5K0 953 569 C
   Component: LENKS.MODUL   009 0136  
   Revision: FF010038    Serial number: 20100914100906
   Coding: 5080140000
   Shop #: WSC 73430 790 00000
   ASAM Dataset: EV_SMLSNGVOLWS A01004
   ROD: EV_SMLSNGVOLWS.rod
   VCID: 77FDC596CE7175995E1-8022

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels: 5K0-920-xxx-17.clb
   Part No SW: 1Z0 920 903 N    HW: 1Z0 920 903 N
   Component: KOMBI         H04 0405  
   Serial number: 00000000000000
   Coding: 410B01
   Shop #: WSC 73430 031 00000
   ASAM Dataset: EV_Kombi_UDS_VDD_RM09 A04089
   ROD: EV_Kombi_UDS_VDD_RM09_SE25.rod
   VCID: 408F6E4ADB3FF2212FB-8015

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway        Labels: 7N0-907-530-V1.clb
   Part No SW: 7N0 907 530     HW: 1K0 907 951 
   Component: J533  Gateway   H27 5603  
   Revision:   H27       Serial number: 060910F1003085
   Coding: E9A07F0600021200001303
   Shop #: WSC 73430 790 00000
   VCID: 6DD1E7FE742DCF49B4D-8038

No fault code found.

-------------------------------------------------------------------------------
Address 25: Immobilizer (J334)       Labels: 5K0-920-xxx-25.clb
   Part No SW: 5K0 953 234     HW: 5K0 953 234 
   Component: IMMO          H04 0405  
   Serial number: 00000000000000
   Coding: 000000
   Shop #: WSC 00000 000 00000
   ASAM Dataset: EV_Immo_UDS_VDD_RM09 A03008
   ROD: EV_Immo_UDS_VDD_RM09_SE25.rod
   VCID: 6ADBECE28DC3D871D1F-803F

No fault code found.

-------------------------------------------------------------------------------
Address 2E: Media Player 3 (J650)       Labels: 5N0-035-342.lbl
   Part No SW: 5N0 035 342 C    HW: 5N0 035 342 C
   Component: SG EXT.PLAYER H13 0111  
   Revision: A1001003    Serial number: 7668564079    
   Coding: 010000
   Shop #: WSC 73430 790 00000
   VCID: 275DD5D6565125190E1-8072

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver        Labels: 1K0-959-701-MIN3.lbl
   Part No SW: 1T0 959 701 T    HW: 1T0 959 701 T
   Component: Tuer-SG         009 2120  
   Coding: 0000756
   Shop #: WSC 73430 790 00000
   VCID: 489F766A3B0FCA61E7B-801D

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist        Labels: 1Kx-909-14x-44.clb
   Part No: 1K0 909 144 J
   Component: EPS_ZFLS Kl. 74     3001  
   Revision: 00H17000    
   Shop #: WSC 73430 790 00000
   VCID: 31693B8EA8956BA9D05-8064

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass.        Labels: 1K0-959-702-MIN3.lbl
   Part No SW: 1T0 959 702 R    HW: 1T0 959 702 R
   Component: Tuer-SG         009 2120  
   Coding: 0000756
   Shop #: WSC 73430 790 00000
   VCID: 479D75563611C519EE1-8012

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio (J503)       Labels: 5M0-035-1xx-56.clb
   Part No SW: 1Z0 035 156 F    HW: 1Z0 035 156 F
   Component: BOLERO        010 0054  
   Revision: 0A001001    Serial number: SKZ1Z3K8457124
   Coding: 090004000001
   Shop #: WSC 73430 790 00000
   VCID: 35610F9E9CFD47898CD-8060

No fault code found.

-------------------------------------------------------------------------------
Address 62: Door, Rear Left        Labels: 1K0-959-703-GEN3.lbl
   Part No SW: 5K0 959 703 A    HW: 5K0 959 703 A
   Component: Tuer-SG         007 2101  
   Coding: 0000144
   Shop #: WSC 73430 790 1012544
   VCID: 326B3482AD9350B1A9F-8067

No fault code found.

-------------------------------------------------------------------------------
Address 72: Door, Rear Right        Labels: 1K0-959-704-GEN3.lbl
   Part No SW: 5K0 959 704 A    HW: 5K0 959 704 A
   Component: Tuer-SG         007 2101  
   Coding: 0000144
   Shop #: WSC 73430 790 1012544
   VCID: 33653186528959B9A29-8066

No fault code found.

End-------------------------(Elapsed Time: 01:57)--------------------------

27 January, 201511 yr

Author

So I tried removing the central electrics module to check for any sign of water ingress etc. Everything looked fine so I cleaned the connections and put it back together with no success.

Is this the correct module to control these parts and if so would it be worthwhile picking up a second hand unit to try?

28 January, 201511 yr

I have read of weird electrical issues being caused by the battery starting to lose performance. We had an ABS warning coming up intermittantly and had it checked out a couple of times by the dealer but they said there was nothing wrong. I got a Bosch S5 096 battery and fitted it. It is more powerful that the standard battery that came with the car. The ABS error has never reappeared. Might be worth trying another battery.

28 January, 201511 yr

Author

Thanks, I'll give it a go. Ordered the same battery for £88.74 from ECP.

I would have thought I'd have trouble starting the car if it was the battery so hadn't considered it as an option until now. AFAIK the car is still on its original battery so probably due a change soon anyway

28 January, 201511 yr

If your really stuggling mate there is a garage in Orbison St motherwell local to you called bedrock vw I used to use him when I had my Leon cupra r he is very knowledgeable about all things vag and very helpfull if it's another opinion your after.

5 February, 201511 yr

Author

So I fitted the new battery last weekend and..... nothing :( Everything is exactly the same as before.

I've heard good things about bedrock but quite enjoy fixing it myself if I can so it will be a last resort.

Could it be something related to the ignition switch? the lights and radio staying on seem as if the car doesn't know the key has been removed but doesn't explain the central locking issue.

My only other idea would be to replace the BCM as surely several unrelated electrical issues could be caused by the part which controls most of the electronics?

I've seen this on ebay which is cheaper than a dealer: http://www.ebay.co.uk/itm/BCM-Onboard-power-supply-unit-Octavia-Superb-Yeti-1K0937087P-New-genuine-part-/171380214822

My issue with this is that my part number ends in J whereas this is P. Is this likely to be an issue? I can recode with VCDS but that only works if the part itself is compatible..

6 February, 201511 yr

I would personally check to make sure you dont have any footwell or boot water ingress....these things normally lead to such gremlins as a number of the electrical controllers are located in the passenger compartment floor and in the boot.

Does the car steam up an unusual amount as thats often a sign there is a problem. Check the spare wheel well as well, if a problem it will be full of water.

6 February, 201511 yr

Author

No water ingress at all as far as I can see. It was one of the first things I checked because my last car suffered from it badly to the point I had to use a carpet cleaner to remove it every few weeks.

There is some slight steaming up in the mornings at the moment but I put that down to the cold weather and wet feet more than any leaks.

I've had a reply from the seller of the BCM on eBay saying it is a direct replacement and offering a bit of a discount too but want to rule out other possibilities first.

Are there any other controllers on the car which control the sensing of the ignition being off, central locking, lights and radio? It all seems too unrelated to be a wiring fault or a single other point of failure

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