xx216xx

So I have no idea what is going on with my 97 A8 Quattro. When I first start the car it isn't in limp mode, but when I put it in drive it doesn't feel like it goes into gear and when I push on the accelerator, as soon as it hits 1200rpm there is a small thud and it goes into limp mode. No matter how quickly or slowly I do this, as soon as it hits 1200rpm it does it. Everytime I turn the car off and back on it will no longer be in limp mode. It doesn't do it in reverse though. I can get the rpm's over 1200 in reverse and it's fine. I just got done replacing the Transmission Range Switch (F125) but I didn't clear the codes yet because I just haven't been able to get it done yet.Would clearing the codes matter? I'm thinking the next thing I'll do is replace the ATF fluid and filter and see what happens. I have no idea what to do after that though. Any help is appreciated.

These are the codes that were pulled awhile back before replacing the TRS:

Original Codes ECU

Sunday,23,September,2007,20:12:09:01947
VAG-COM Version: Release 704.1

Address 01: Engine
Control Module Part Number: 4D0 907 557 D
Component and/or Version: 4.2L V8/4V MOTR AT D05
Software Coding: 01273
Work Shop Code: WSC 00214
9 Faults Found:

18010 - Power Supply Terminal 30: Voltage too Low
P1602 - 35-10 - - - Intermittent
18098 - Malfunction Indication Light (K83): Electrical Malfunction
P1690 - 35-00 - -
16684 - Random/Multiple Cylinder Misfire Detected
P0300 - 35-10 - - - Intermittent
16685 - Cylinder 1: Misfire Detected
P0301 - 35-10 - - - Intermittent
17546 - Fuel Trim: Bank 2 (Add): System too Lean
P1138 - 35-10 - - - Intermittent
17544 - Fuel Trim: Bank 1 (Add): System too Lean
P1136 - 35-00 - -
16684 - Random/Multiple Cylinder Misfire Detected
P0300 - 35-10 - - - Intermittent
16685 - Cylinder 1: Misfire Detected
P0301 - 35-10 - - - Intermittent
18032 - MIL Request Signal Active (Check TCM for errors too!)
P1624 - 35-00 - -

Readiness: N/A

Original Codes TCM

Sunday,23,September,2007,20:13:33:01947
VAG-COM Version: Release 704.1

Address 02: Auto Trans
Control Module Part Number: 4D0 927 156 K
Component and/or Version: AG5 01L 4.2l4V USA D29
Software Coding: 00002
Work Shop Code: WSC 02314
5 Faults Found:

17090 - Transmission Range Sensor (F125): Implausible Signal
P0706 - 35-10 - - - Intermittent
17114 - Gear Ratio Monitoring: Incorrect Gear Ratio
P0730 - 35-00 - -
17114 - Gear Ratio Monitoring: Incorrect Gear Ratio
P0730 - 35-00 - -
17114 - Gear Ratio Monitoring: Incorrect Gear Ratio
P0730 - 35-00 - -
18169 - Shift Lock Solenoid (N110): Short to Ground
P1761 - 35-10 - - - Intermittent

Recurring ECU Codes:

Sunday,23,September,2007,20:20:48:01947
VAG-COM Version: Release 704.1

Address 01: Engine
Control Module Part Number: 4D0 907 557 D
Component and/or Version: 4.2L V8/4V MOTR AT D05
Software Coding: 01273
Work Shop Code: WSC 00214
1 Fault Found:

18098 - Malfunction Indication Light (K83): Electrical Malfunction
P1690 - 35-00 - -

Readiness: N/A

KYNZ

sorry man. good luck.

KYNZ

do you have AAA? if so, have them tow it to a tranny shop (one that you would use if you need it)

xx216xx

how sure are you of this? If this is the case I plan on parting the car out because the expense is not worth it for a car that is only worth $6000

tozoM8

<center><img src="http://pictureposter.audiworld.com/80919/dscn1872.jpg"></center><p>

tozoM8

You can buy a replacement tranny for much less and have her back on the road again

xx216xx

So how much could I get for my A8 with the tranny broken? It has 122k and everything is in fair shape. $2k maybe? I'm not going to pay to fix it because I was going to get rid of it right before this happened anyway. I need something with lower miles and cylinders. It was a nice car though...such a smooooth ride.

xx216xx

If i get the car rolling and allow the rpms to rise above 1200rpm without stepping on the accelerator it doesn't go into limp mode. Then if I press on the accelerator after the rpms are over 1200rpm the tranny seems to just hunt and doesn't really engage, and then after about a minute of this it finally goes limp. Is this consistant with the broken clutch basket?

PaulW

See tozo's post below, looks like you're in for a rebuild