General Information: Mechatronic

The Mechatronic combines the following components as a complete synchronized unit:

• Transmission Control Module -J217- hydraulic control
• The sensors and actuators

The Mechatronic unit is installed in the transmission in the area of the ATF pan.

Transmission Control Module -J217-

The control module is a part of the Mechatronic unit in the transmission.

Determining the driving situation and driving resistance dependent shift point occurs automatically.

Advantages:

• Usage-based shifting
• Maximum engine output is always available
• Individual adaptation of shift points in all driving situations
• Gear shift points are infinitely variable

Shift Point Changes on Inclines and Declines

When driving on inclines or declines, gears are automatically selected using additional shift characteristic maps. The selection is based on accelerator pedal position and vehicle 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.
• By selecting a gear directly using tiptronic, the driver can use the engine braking effect with a specific gear engaged, for example when driving downhill with a trailer.