Door Lock Repair Guide - Help!

**willdudeuk** · 02-12-2020,11:03 PM

Hi

I found this guide on VWwatercooled Australia....

DIY: How to repair a VW MK5 door lock module

Though it might be useful for this forum too....

Tried giving it a go myself but haven’t had any success.

I know it makes more sense just to buy genuine but they are just too expensive.....and the aftermarket ones I’ve heard aren’t that great especially off that well know auction website!

Was hoping for some advice as to why I can’t get them to work.

It’s making noises and the red lever does move but sometimes it get stuck in one position and won’t return.

Any help would be appreciated.

Thanks

**tditaff** · 03-12-2020,11:48 AM

I replaced a rear door module a few months ago with one from ebay and it works fine.
I would have no problem doing it again, they're very affordable.
I did look into used parts from scrap vehicles but chose against it (as their age puts them in the potential fail zone).

**willdudeuk** · 03-12-2020,04:49 PM

Fair enough think I may have to! Seems to have made the problem worse taking it apart! Almost couldn’t get the door open at all once I got it back together. Thought it was deadlocked forever but managed to open it from the interior handle after frantically turning central locking on and off , pulling at the handle and she eventually opened up.

Any suggestions for a decent door lock that isn’t from that auction site??

**VAG-Abound** · 03-12-2020,06:41 PM

I went with genuine item on eBay from a car being dismantled. Cheap, and working absolutely fine a year later on.

**willdudeuk** · 03-12-2020,07:24 PM

Thanks for your reply.

I shall take a look and see what I can find at the breakers yard / online.

Just interested to know what actually fails on these door locks?

The motors both worked fine when I put a 9v battery across them.....all micro switches had continuity on the outer pins and went off when switch depressed...

What else could it be? Circuit board issue? Wiring?

**Crasher** · 04-12-2020,01:37 PM

We will only fit new genuine from TPS, then when one jams in warranty (we have had this on a Golf 6 and A4) it is the main dealers problem not mine. Take care though even then, twice now we have been supplied an old but cleaned up faulty unit by TPS that a trade customer has sent back for a refund, the first time on a traders Golf 5 GTI really had me scratching my head until I sussed it.

**willdudeuk** · 05-12-2020,06:45 PM

No worries thanks for the advice.

To be honest I’m still scratching my head why it’s not working correctly.

I had the unit open to see how the inner workings operate and the motor for the lock/ unlock doesn’t appear to always work.

Tested all the micro switches which have continuity and operate as one would expect.

Attempted to find bad solder joints but couldn’t see any but I know these can be very subtle so may have missed something on the printer circuit board.

Now starting to suspect dodgy wiring to the lock unit.

Door jam area looked ok.....

Need to check from window control unit to lock to see if anything not right.

**willdudeuk** · 05-12-2020,07:41 PM

VCDS Scan for my door lock issue....

Code:

Saturday,05,December,2020,18:32:59:33544VCDS -- Windows Based VAG/VAS Emulator Running on Windows 7 x64
VCDS Version: 20.4.2.0 (x64)
Data version: 20200730 DS317.0
www.Ross-Tech.com




VIN: WVWZZZ1KZ4W096975   License Plate: 




Chassis Type: 1K (1K0)
Scan: 01 03 08 09 15 16 17 19 25 42 44 46 52 56


VIN: WVWZZZ1KZ4W096975   Mileage: 351740km-218561miles


00-Steering Angle Sensor -- Status: OK 0000
01-Engine -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- 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
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
46-Central Conv. -- Status: Malfunction 0010
52-Door Elect, Pass. -- Status: Malfunction 0010
56-Radio -- Status: OK 0000
 
-------------------------------------------------------------------------------
Address 01: Engine        Labels: 03C-906-056-BAG.lbl
   Part No SW: 03C 906 056 BA    HW: Hardware No 
   Component: MED9.5.10       G00 5697  
   Revision: 00000000    Serial number: VWZ7Z0D9331576
   Coding: 0000072
   Shop #: WSC 01279 785 00200
   VCID: 63C1C201A2D6B09E6E-8036


No fault code found.
Readiness: 1110 0101


-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 1K0-907-379-MK60-F.lbl
   Part No: 1K0 907 379 K
   Component: ESP FRONT MK60      0103  
   Coding: 0019073
   Shop #: WSC 01279 785 00200
   VCID: 3A7F5F6575DC91561D-806E


No fault code found.


-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: 1K0-820-047.lbl
   Part No: 1K0 820 047 CB
   Component: Climatic PQ35   080 0201  
   Shop #: WSC 00000 000 00000
   VCID: 66C7DB1551E4C5B689-8032


No fault code found.


-------------------------------------------------------------------------------
Address 09: Cent. Elect.        Labels:. 3C0-937-049-23-M.lbl
   Part No SW: 1K0 937 049 K    HW: 1K0 937 049 K*
   Component: Bordnetz-SG 1.0 H30 0701  
   Revision: 00030000    Serial number: 00000000514812
   Coding: E48D0F0600041800001400001400000000
   Shop #: WSC 00000 000 00000
   VCID: 3779465146CE8C3EE2-8062


   Subsystem 1 - Part No: 1K2 955 119 B  Labels: 1KX-955-119.CLB
   Component: Wischer VW350  012  0401  
   Coding: 00065493
   Shop #: WSC 00000  


   Subsystem 2 - Part No: 1K0 955 559 K  Labels: 1K0-955-559-AF.CLB
   Component: RegenLichtSens 002  0505  
   Coding: 00217125
   Shop #: WSC 00000  


No fault code found.


-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 1K0-909-605.lbl
   Part No SW: 1K0 909 605 A    HW: 1K0 909 605 A
   Component: 0M AIRBAG VW8   022 0500  
   Revision: 04022000    Serial number: 0033FD08P0VC  
   Coding: 0012365
   Shop #: WSC 01268 785 00200
   VCID: 2A5F6F25857C21D66D-807E


   Subsystem 1 - Serial number: 6332MSME5D7E1002 


   Subsystem 2 - Serial number: 6342MSME57340A02 


   Subsystem 3 - Serial number: 6351HSME43485801 


   Subsystem 4 - Serial number: 6361HSME5D0F5901 


No fault code found.


-------------------------------------------------------------------------------
Address 16: Steering wheel        Labels: 1K0-953-549-MY8.lbl
   Part No SW: 1K0 953 549 A    HW: 1K0 953 549 A
   Component: Lenksäulenmodul 012 0030  
   Coding: 0000022
   Shop #: WSC 01279 785 00200
   VCID: 306B7D4DA3A05B06A3-8064


No fault code found.


-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 1K0-920-xxx-17.lbl
   Part No: 1K0 920 950 K
   Component: KOMBIINSTRUMENT VDD 3554  
   Coding: 0000401
   Shop #: WSC 00218 210 03908
   VCID: 306B7D4DA3A05B06A3-8064


No fault code found.


-------------------------------------------------------------------------------
Address 19: CAN Gateway        Labels:. 1K0-907-530-V1.clb
   Part No SW: 1K0 907 530 C    HW: 1K0 907 951 
   Component: Gateway         H08 0080  
   Revision: 08          Serial number: 2100104128EF35
   Coding: 3D0F0340070003
   Shop #: WSC 01279 785 00200
   VCID: 27599611966E1CBE72-8072


No fault code found.


-------------------------------------------------------------------------------
Address 25: Immobilizer        Labels: 1K0-920-xxx-25.clb
   Part No: 1K0 920 950 K
   Component: IMMO                3554  
   Shop #: WSC 00000 000 00000
   VCID: 306B7D4DA3A05B06A3-8064


No fault code found.


-------------------------------------------------------------------------------
Address 42: Door Elect, Driver        Labels: 1K0-959-701-MIN1.lbl
   Part No: 1K0 959 701 E
   Component: Tuersteuergeraet 09 0116  
   Coding: 0000052
   Shop #: WSC 01279 785 00200
   VCID: 306B7D4DA3A05B06A3-8064


No fault code found.


-------------------------------------------------------------------------------
Address 44: Steering Assist        Labels: 1Kx-909-144-G2V1.clb
   Part No: 1K2 909 144 E
   Component: EPS_ZFLS Kl.1       1202  
   Shop #: WSC 00000 000 00000
   VCID: 2E576335B9944DF6B1-807A


No fault code found.


-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels:. 1K0-959-433-MIN.clb
   Part No: 1K0 959 433 BL
   Component: 01 KSG              0301  
   Coding: 81E802087F2D8505485BC61000
   Shop #: WSC 00218 210 08203
   VCID: 7BF19A613A66685E46-802E


   Subsystem 1 - Part No: 1K0 951 605 C
   Component: LIN BACKUP HORN H05 1501


   Subsystem 2 - Part No: 1K0 907 719 
   Component: Neigungssensor  003 0003


   Subsystem 3 - Part No: 1K0 951 177 
   Component: Innenraumueberw.004 0101


3 Faults Found:
01134 - Alarm Horn (H12) 
            004 - No Signal/Communication
00931 - Locking Module for Central Locking; Rear Right (F223) 
            012 - Electrical Fault in Circuit
01038 - Central Locking Thermal Protection 
            000 - -


-------------------------------------------------------------------------------
Address 52: Door Elect, Pass.        Labels: 1K0-959-702-MIN1.lbl
   Part No: 1K0 959 702 E
   Component: Tuersteuergeraet 09 0116  
   Coding: 0000052
   Shop #: WSC 01279 785 00200
   VCID: 316D7849A8AA520EAC-8064


1 Fault Found:
00929 - Locking Module for Central Locking; Front Passenger Side (F221) 
            008 - Implausible Signal


-------------------------------------------------------------------------------
Address 56: Radio        Labels: 1K0-035-1xx-56.lbl
   Part No: 1K0 035 186 J
   Component: Radio BNO           0016  
   Coding: 0040400
   Shop #: WSC 01279 785 00200
   VCID: 2D556439B49236EE88-8078


No fault code found.


End-------------------------(Elapsed Time: 01:34)--------------------------

**Crasher** · 05-12-2020,07:49 PM

That’s an early UK Golf 5, built 03-03-04. The door lock unit is faulty, plain and simple. It is controlled by the window lifter control unit which itself is CAN BUS commanded so a wiring fault between the lifter unit and the lock unit is unlikely.

**willdudeuk** · 05-12-2020,08:04 PM

Thanks for the reply Crasher I shall get a replacement.

Can you explain a bit more my what you mean by the CAN BUS and why it can’t be a wiring issue? This is communication system the vehicle uses?

The window on the passenger side does go on the fritz sometimes.....you touch the window button and it goes all the way down when you want it go up and visa versa....not sure why it does this or has any relation to what is happening with the door lock.