Notes on 5-speed automatic transmission 01V

WARNING: This page is about a different car, the 2005 Audi A4, 2004 Audi A4, 2003 Audi A4, and 2002 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

Self-study program number. 180 informs extensively about the function of this transmission.

Torque converter

The torque converter is equipped with a lock-up clutch. The lock-up clutch is closed load- and speed-dependant with minimum pulsations and mechanically drives all forward gears independent of slip.

Transmission

5-speed automatic transmission 01V is equipped with 5 hydraulically activated forward gears. By passing the torque converter slip, these forward gears become mechanically driven gears if the lock-up clutch is closed.

On Board Diagnostic (OBD)

Before performing service work on the automatic transmission, cause of damage must be exactly determined via "Guided Fault Finding".

"Guided Fault Finding" is performed using the tester VAS5051.

Transmission Control Module (TCM) J217 with driving situation shifting (fuzzy logic)

Driving situation- and driving resistance dependent shift point determination is performed automatically.

Advantages:

It is shifted depending on consumption
Highest engine performance is always available
Individual adaptation of shift points in all driving situations
Arbitrarily changed shift points

Shift point change when driving up- or downhill ranges

At uphill or downhill ranges, the shifts are automatically selected dependent on the accelerator pedal position and vehicle speed via additional shift characteristics maps.

Shift characteristics map for extreme uphill driving is adapted to the engine performance.
Shift characteristics map for extreme downhill driving is adapted to the braking effect of the engine.