6 Speed Automatic Transmission 09D

6 Speed Automatic Transmission 09D

On Board Diagnostic (OBD)

Before beginning any service work on the automatic transmission, determine the exact cause of the damage using Guided Fault Finding, refer to vehicle diagnosis, testing and information system VAS 5051.

Transmission Control Module (TCM) (J217)

Installed location: The TCM is installed under the right front seat. Refer to => [ Transmission Control Module ] Service and Repair.

Shift Point Changes on Inclines and Declines

An additional gear change map automatically selects the gear changes for gradients dependent upon accelerator pedal position and driving speed.

• The gear change map for extreme uphill stretches is matched to engine output.

• The gear change map for extreme downhill stretches is matched to the braking effect of the engine.

• Direct gear selection by way of the Tiptronic function permits utilization of engine braking action with a specific gear engaged, for example, on a downhill gradient with a trailer.