Audi

USATransdoctor.com
These recommendations do not cover all possibilities. They are some things to check before you have your transmission rebuilt. Always check transmission fluid level first. Always run a scanner on any computer controlled transmission. On modulated transmissions make sure they have enough vacuum.

80	1988-90 2.0L 089	1988-90 2.3L 087	1991-92 2.0L 089
	1991-92 2.3L 097
90	1988-90 2.3L 087	1991-92 2.3L 097	1993-95 2.6 / 2.8L 097
100	1989-90 2.3L 087	1991 2.3L 097	1992-94 2.6/2.8L ZF4HP18
4000	1980-82 2.1L 087	1980-87 1.6 / 1.7 / 1.8L 089
5000	1978-88 2.1 / 2.2 / 2.3L 087
A4	1996-01 1.8 / 2.8L ZF5HP19
A6	1995-97 2.3L ZF4HP18	1998-01 2.8L ZF5HP19
A8	1997-01 3.7 / 4.2L ZF5HP19
CABRIOLET	1994-98 2.8L 097
COUPE	1981-87 2.1 / 2.2L 087
V-8	1990-94 3.6 / 4.2L ZF4HP24 ALL WHL DR

087 / 089
The transmissions above are front wheel drive, 3 speed automatics. Common problems are: The transmission shifts soft and early. It shifts hard and late or erratic.

Always check the throttle pressure cable that goes from your transmission to your carburetor or throttle body depending on the configuration of your engine. This controls the shift points and sometimes the cable can be no good or out of adjustment.

ZF4HP18 / ZF4HP24
The transmissions above are rear wheel drive 4 speed automatics and shift timing is computer controlled.

If your transmission starts shifting erratic, make sure you have a shop run a scanner on the vehicle. Also check the throttle or kick down cable adjustment.

Also make sure your clutch fan on the front of the motor is not starting to seize up. This causes the engine to sound unusually loud almost like the transmission is not shifting into 4th gear.

097
The transmission above is a 4 speed front wheel drive. They are all computer controlled. If your transmission starts shifting erratic or not at all, then make sure you or a shop run a scanner on the vehicle.

You want to see if you have a sensor that has gone bad, causing your problems. The vehicle speed and throttle valve potentiometer sensors like to go bad on these vehicles. So keep that in mind.

ZF5HP19
The transmission above is a 5 speed rear wheel drive. they can be extremely expensive.

This transmission is all computer controlled. If your transmission starts shifting erratic or not at all, then make sure you or a shop run a scanner on the vehicle. You want to see if you have a sensor that has gone bad, causing your problems.

I recommend being very careful when choosing a shop to diagnose or repair this transmission.