LasloA6

Im looking at grabbing a 2002 A6 with a wet TCM, at what i believe to be a good price. The owner says it does not move. He had it towed to Audi, and they diagnosed the TCM failure and mentioned a clogged roof drain. Im reasonable confident ill be able to repair the TCM as i repair water damaged electronics daily. Just trying to figure out how to get it to the house. Hoping for a limp mode.

Is there any process to getting one with a bad TCM to move? It is 2 miles from my home, so if i could limp it over and avoid a tow it would be preferable.

Any help would be appreciated.

georgeb944

Probably not.

Harleyguy

If it's front wheel drive you can probably tow it using a wheel dolly. Load it onto a trailer and haul it if it's a Quattro. Local rental on a U Haul car trailer is around $75 per day. Or get a tow truck to relocate it. Flat tow using tow rope, strap, or chain NOT recommended. Agree with george. You can try to get it to move but chances are it won't move under its own power.

LasloA6

ok maybe against my better judgment i bought the thing. Went there, the guy said it only moves and reverse and would need a tow. i disconnected the TCM and was able to limp it home in a forward gear.

TCM is badly damaged with visible charred mosfets. The guy actually had a replacement one (eBay) with all numbers matching. Opened it up, looks pristine. Installed, cleared codes, seems to no longer be in limp mode but no reverse and oddly it kinda of tries to move forward a little bit in park and neutral if i hit the gas. tiptronic does not want to select gears at all. Dash indicator shows 1 2 3 4 but moving through them is not possible.

When selecting reverse it will clunk into gear, but movement is not possible.

Codes below. I see nothing relevant. Being that he was moving it around his property in reverse, im hopeful that it is not a physical failure.

Any benefit in moving the eeprom from the old to the new? I can easily do this. As well as any other component on the board if need be.

VCDS-Lite Version: Release 1.2
Saturday, 10 November 2018, 17:11:42:0


Chassis Type: 4B - Audi A6 C5
Scan: 01,02,03,06,08,15,16,17,18,22,34,35,36,37,45,55,56 ,57,65,67,75,76,77

-------------------------------------------------------------------------------
Address 01: Engine Labels: 078-907-551-AZA.LBL
Controller: 4B0 907 551 T
Component: 2.7l V6/5VT G 0001
Coding: 06752
Shop #: WSC 02325
VCID: 351DA2D71C59

No fault code found.
Readiness: 0110 1101

-------------------------------------------------------------------------------
Address 02: Auto Trans Labels: 01V-927-156.LBL
Controller: 4B0 927 156 DR
Component: AG5 01V 2.7l5VT USA 1819
Coding: 01002
Shop #: WSC 02325
VCID: 7A8771EB75C7
No fault code found.

-------------------------------------------------------------------------------
Address 06: Seat Mem. Pass Labels: None
Controller: 4B0 959 760 C
Component: Sitzmemory R1 BF 0103
Coding: 00003
Shop #: WSC 00000
VCID: 2D2D8AB7F409
2 Faults Found:
00668 - Supply Voltage Terminal 30
07-10 - Signal too Low - Intermittent
00668 - Supply Voltage Terminal 30
06-10 - Signal too High - Intermittent

-------------------------------------------------------------------------------
Address 08: Auto HVAC Labels: 4B0-820-043-MY1.LBL
Controller: 4B0 820 043 AD
Component: A6-Klimavollautomat 0105
Coding: 00010
Shop #: WSC 02325
VCID: 5CCB1773DF33
No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags Labels: 4B0-959-655-AI7.LBL
Controller: 4B0 959 655 N
Component: Airbag 8.4E 3001
Coding: 0000307
Shop #: WSC 02325
VCID: 3B09B4EF3A7D
No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel Labels: 4B0-907-487.LBL
Controller: 4B0 907 487 J
Component: Lenkradelektronik D01
Coding: 01012
Shop #: WSC 02325
VCID: 33199CCF122D
No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments Labels: 4B0-920-xxx-17.LBL
Controller: 4B0 920 981 P
Component: KOMBI+WEGFAHRS. VDO D09
Coding: 02264
Shop #: WSC 00000
VCID: 33199CCF122D

No fault code found.

-------------------------------------------------------------------------------
Address 35: Centr. Locks Labels: 4B0-962-258.LBL
Controller: 4B0 962 258 J
Component: Central Lock/Alarm D35
Coding: 15885
Shop #: WSC 09935
VCID: 301393C3E33B
No fault code found.

-------------------------------------------------------------------------------
Address 36: Seat Mem. Drvr Labels: None
Controller: 4B0 959 760 B
Component: Sitzmemory R1 F 0101
Coding: 00001
Shop #: WSC 00000
VCID: 2C2B87B3CF13
2 Faults Found:
00668 - Supply Voltage Terminal 30
07-00 - Signal too Low
00668 - Supply Voltage Terminal 30
06-00 - Signal too High

-------------------------------------------------------------------------------
Address 45: Inter. Monitor Labels: None
Controller: 4B0 951 178 A
Component: Innenraumueberw. D04
Coding: 00101
Shop #: WSC 02325
VCID: 263F759BD1FF
No fault code found.

-------------------------------------------------------------------------------
Address 55: Xenon Range Labels: 4Z7-907-357.LBL
Controller: 4Z7 907 357
Component: dynamische LWR D06
Coding: 00050
Shop #: WSC 02325
VCID: 047B0F130703
No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio Labels: 8D0-035-1xx-56.LBL
Controller: 4B0 035 195 J
Component: symphony II NP2 0011
Coding: 00201
Shop #: WSC 00000
VCID: 2721789FD6F5
No fault code found.

-------------------------------------------------------------------------------
Address 76: Park Assist Labels: 8Z0-919-283.LBL
Controller: 8Z0 919 283
Component: Parkingsyst. A6 USA D08
Coding: 01126
Shop #: WSC 02325
VCID: 0277090B1D17
1 Fault Found:
01543 - Parking Aid Warning Chime (H15)
31-00 - Open or Short to Ground

End --------------------------------------------------------------------------------------------------

georgeb944

Probably a parts car at this point.

Tiptronic transmissions are the main reason that I only buy 6 speed manuals.