Transmission Issues

I had a little moment today when the transmission clunked while coasting down hill at 60km/h in 6th gear.
Only lasted a second, felt like it slipped to neutral, I feather touched the accelerator and things were fine again.
The Mrs complained of something similar last week but could not give any real details.

I have been worried for a while as there is a suspension sort of rattle now and then on rough roads. Gear changes are not always as smooth as I would like. I have been planning on getting under to check the trans mounts, but cannot do that till I move back home in December. Both top engine mounts were done a while back as they were toast.

Perhaps a wiring harness is broken somewhere ??


Here is a scan.
(EGR is a known long term thing that I have been ignoring )

Address 01: Engine Labels: Redir Fail!
Part No SW: 06F 906 056 EK HW: Hardware No
Component: MED9.5.10 G00 9607
Revision: 69H03--- Serial number: VWZ7Z0F3632610
Coding: 0000075
Shop #: WSC 22040 959 86313
VCID: 76E47EF701D49A8E77-8022

2 Faults Found:
005120 - EGR Valve (N18)
P1400 - 002 - Electrical Malfunction - Intermittent - MIL ON
Freeze Frame:
Fault Status: 10100010
Fault Priority: 0
Fault Frequency: 29
Reset counter: 255
Mileage: 182549 km
Time Indication: 0
Date: 2000.00.00
Time: 07:35:28

Freeze Frame:
RPM: 1920 /min
Load: 90.2 %
Speed: 60.0 km/h
Temperature: 51.0°C

049409 - No Communication with Transmission Control Module
U0101 - 008 - - Intermittent
Freeze Frame:
Fault Status: 00101000
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 183475 km
Time Indication: 0
Date: 2000.00.00
Time: 16:49:48

Freeze Frame:
RPM: 720 /min
Load: 44.3 %
Speed: 2.0 km/h
Temperature: 78.0°C

Readiness: 0000 0001

-------------------------------------------------------------------------------
Address 02: Auto Trans Labels: 09G-927-750.clb
Part No: 09G 927 750 FB
Component: AQ 250 6F 0709
Coding: 0000072
Shop #: WSC 00066 000 00000
VCID: 76E47EF701D49A8E77-8022

3 Faults Found:
01314 - Engine Control Module
004 - No Signal/Communication - Intermittent
01316 - ABS Control Module
004 - No Signal/Communication - Intermittent
01312 - Powertrain Data Bus
004 - No Signal/Communication - Intermittent

Address 19: CAN Gateway Labels: 1K0-907-530-V1.clb
Part No SW: 1K0 907 530 F HW: 1K0 907 951
Component: Gateway H10 0120
Revision: H10 Serial number: 28001062130925
Coding: 3F3F0740071003
Shop #: WSC 00066 000 00000
VCID: 2A5C9A8785EC8E6E23-807E

1 Fault Found:
01315 - Transmission Control Module
004 - No Signal/Communication - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 2
Fault Frequency: 1
Reset counter: 186
Mileage: 183475 km
Time Indication: 0
Date: 2000.00.00
Time: 16:49:49

Looks like the TCU lost comms. Check/clean the connector check wiring harness for any obvious damage etc as a first point of trouble shooting

I'll be having a look this weekend.
Need to find that TCM, think it might be hiding up in the passenger side wheel well, which will be a bitch to get to.

I got a chance to get dirty today.
Connection to the TCM looks fine, no signs of water ingress or corrosion.

But the transmission mount bush, the big one in the subframe is cracked and split, so that would explain the harsh gear changes.
From what I see online replacing that bush is a huge job. I wonder if those poly stiffing inserts would help in my case ?

Attachment 53467Attachment 53468
Attachment 53469