Yesterday, I warmed up the trans to about 35 deg C, shifted 10 sec with foot on brake through all positions.
Engine running, trans in P.
Took fill plug out, inserted fill hose and pumped in until (and more) fluid tripped out. Inserted plug.
Trans moving a bit in 1st and reverse, but total slipping when shifting into 2nd.

Today, I only warmed up a bit (say 25), shifted through gears.
Engine running, trans in P.
Filled as much in a as possible (plenty of fluid flowing out). Plugged up.
FluidTemp still low.

Test drive showed good torque in 1st and R, but total slip when shifting into 2nd.

Check transmission codes. Got:

Thursday,09,December,2010,16:29:52:22662
VCDS Version: Release 10.6.2

Address 02: Auto Trans Labels: 01V-927-156.LBL
Control Module Part Number: 8D0 927 156 J
Component and/or Version: AG5 01V 2.8l2V US D89
Software Coding: 00000
Work Shop Code: WSC 00000
VCID: 3469E80D2E47
1 Fault Found:

00652 - Gear Monitoring
27-10 - Implausible Signal - Intermittent


Not sure when it was stored.

Note: trans in car was DNR code, installed DJP.
Do I need to 'recode' the trans in VAGcom?

What else could be wrong? Obviously, low trans fluid would be my guess, but with the procedure as described, there is no way to get more in.

Should I try to 'overfill' by adding as much fluid as possible by using a low temp (assuming that level is lowest with coldest temp (expansion with heat)?

 

I will look up and post the transmission code; not sure if I can get to the car this weekend.

I forgot: Is the transmission always starting from stop in 1st or 2nd gear? The slipping occurs when the first upshift takes place.

I forgot: Is the gear selector offering "2" or "1" (all the way back?

Depending on what shift the slipping occurs (1-2 or 2-3) this could help with the troubleshooting.

As I said, I went from a DRN (which according to my information was not used before 1998 in the A4) to a CJP (used in 1996 and 1978 cars).

Vin:
WAUEA88D0TA209419

Engine code (5th): A = 1997 SOHC; (1996: D (SOHC))
Model year: (10th): T = 1996

My built date is:
03/96

I checked 00652 in Bentley (link to pages for 00652)

http://s853.photobucket.com/albums/a...%20to%20P0735/


It refers to error codes (OBDII speak I assume)
P0732
P0733
P0734
P0735
VAGcom does not seem to say which P073x it has found, or? (to narrow down the options).

P0732: engine rpm/trans input rpm/trans rpm faulty
P0732: ATF level not ok
P0732: faulty/wrong converter
P0732: clutch slip
P0732: valve body or solenoid valves faulty
P0732: wrong trans or engine control module

P0733: ditto

P0734: ditto

P0735: ditto plus Multi-Function Switch faulty

 

Troubleshooting suggests to check the converter code.

There are two types of transmissions:
1. Transmissions with hydraulic control -E17-: The sensor for transmission RPM (inductive sensor) is secured to the bottom of the valve body.
2. Transmissions with hydraulic control -E18/2-: The sensor for transmission RPM (hall effect sensor) is secured to the transmission housing behind the valve body.

Can someone elaborate how I can check which one I have? It sound I have to get INTO the trans (no way!).

 

Symptom: trans pulls in first and reverse, but slips as soon as shifting up.

Attempted fix: fill ATF per instructions (engine running, temp under 40 C, shifting through gears, overflowing fill tube).

Issues: Could a possible mismatch between TCM and trans cause such issue?

Problem: Car had DRN trans (not used in 1996, more a 1998 trans; must have been changed by previous owner). I replaced with CJP (used in 1996, 1997). Current TCM code is 8D0 927 156J (VAGcom read), softcode 00000

I had one error code (2 short test drives, may 2 miles total):
00652 - Gear Monitoring
27-10 - Implausible Signal - Intermittent

Rosstech Wiki has to say:
00652 - Gear Monitoring: Implausible Signal

Possible Causes

• Automatic Transmission Fluid (ATF) Level not OK
• Vehicle Speed Sensor (G68) dirty/faulty
  • Impulse Wheel dirty or Installation faulty
• Gearbox Speed Sensor (G38) dirty/faulty
  • Impulse Wheel dirty or Installation faulty
• Multi-Function Switch (F125) faulty (but not detected)
• Clutch or Valve Body faulty
• Automatic Transmission Fluid (ATF) Pump faulty

Possible Solutions

• Check Automatic Transmission Fluid (ATF) Level
• Check/Clean/Replace Vehicle Speed Sensor (G68)
• Check/Clean/Replace Gearbox Speed Sensor (G38)
• Check/Replace Multi-Function Switch (F125)
• Check/Replace Clutch and/or Valve Body

Special Notes

• The ratio of engine speed to gearbox output speed in the currently engaged gear is implausible.
• Slip rpm with torque converter lock-up clutch disengaged must be greater than stall speed.

With first (what gear is the car starting out in D?) and reverse gear pulling strong, but NO pull otherwise, can I rule out:
- ATF fluid?
- gear box speed sensor G38?
- vehicle speed sensor G68?
- clutch/valve body (assuming new trans worked fine before)?
- ATF pump faulty?

What to do next?

Checkout, add, update, correct (maybe with VAGcom reads from YOUR car) the info below for documentation sake.

Also found for this error:
P0733
P0734
P0735
Gear 5 Incorrect Ratio



From Bentley:
1996 (my car):
8D0 927 156J
8D0 927 156F

1997 (donor car with CJP, and year DRN used):
8D0 927 156J

1998 (some DRN used):
8D0 927 156Q
8D0 927 156BQ
8D0 927 156BR
8D0 927 156P


1999 (DRN used): Bentley not showing the TCM code


2000 (some DRN used):
8D0 927 156AS
8D0 927 156AT

 

Just thinking: Is it possible to hook up the trans fluid lines wrong going to the radiator?

 

I took the car out yesterday for another test drive (car was 50 deg, outside was 15 deg). Trans Code from last (00652 - Gear Monitoring 27-10 - Implausible Signal - Intermittent) erased.

VAGcom connected to see what trans is doing
- reverse and 1st working fine
- good torque (forward and reverse up very steep driveway)
- accelerating fine, shifts into 2nd
- stops pulling when shifting in 3rd
- doesn't feel like 'free revving' but barely any pull
- VAGcom shows solenoid 1 and 2 changing
- solenoid 3 never changes
- after 5 min or so (trans temp at ca. 50 deg C) VERY LITTLE PULL IN 1ST AND REVERSE.
- BARELY MADE IT BACK INTO GARAGE ON ALMOST LEVEL

Checked trans codes: 00652 - Gear Monitoring 27-10 - Implausible Signal - Intermittent back again

Did output test:
Solenoid 1, 2, 3, 4 clicking (no click from 5 on)

Why is first, second and reverse first working, then die?
Why is 3rd (and up?) never working?
Is solenoid 3 supposed to move?

In what direction does the above point?
- fluid low, dirty filter, bad fluid (did not look bad)
- stuck valves (unknown how long donor car was sitting in yard)
- incompatible TCM/trans/ECM
- incompatible gear ratio
- torque converter
-
I checked again the amount of ATF I was able to get in:
2 quarts

ATF losses that occurred:
- removing trans from donor car, trans lines disconnected, fluid in radiator: estimate 0.5 quart
- some dripping over 3 weeks (estimate: < 0.5 quart)
- removed drain plug with engine not running (accident); estimate: 1 quart (???)
- spill from improper seated trans line to cooler: <1 quart

 

Someone told me that the trans works to some extend even if the connectors (2 round plugs) are disconnected?

Is that the case?

If so, would this help with troubleshooting? If it works (say: 5th gear or whatever it uses without input from controller), it would point towards electrical (valve body, solenoids, TCM, ECM, sensors). If not (but supposed to), mechanical transmission issues (torque converter, filter, fluid, clutches, etc.)?

 

I found that there is in deed such a fail safe mode (faulty power supply or disconnected connector): "Mechanical emergency running mode with inactive control module"

- transmission shifts out of all forward gears into hydraulic 4th gear
- torque converter clutch is unlocked
- all solenoid valves are de-energized
- max shift pressure is applied to the power-transmitting elements
- reverse gear can be engaged

I will try this 'mode' (disconnect TCM connector to transmission) to see if the trans works at least mechanically.

 

Hi there,

Did you find the problem?? I'm having the same issue here with my Audi A4 1996 b5. It cranks but won't turn on... It was fine 2 days ago. Yesterday I tried to start it in the morning and kept stalling. Later that day it started... but the idle was a little rough.
Now this morning same problem, only difference it won't actually start at all...
HELP!!!

 

In my case (cranking, no spark): ICM connectors mixed up.

In your case:
a) bad crank sensor
b) failing ICM

Check spark first. If you have good spark:

c) Clean MAF sensor

Check fuel (take an injector out, crank, see if they squirt).

If you have spark and fuel

d) check cam sensor

Any codes? Best to run a diagnostic with VAGcom and post the codes.