Transmission Control (TCU / DSG)

A gearbox warning after battery work should be assessed with the electrical and repair timeline preserved.

A transmission warning following a fluid service needs the service details, not just the fault code.

Unexpected neutral selection should be distinguished from the normal display or operating strategy described in the manual.

A difference between manual and automatic shift modes is useful diagnostic context.

Inoperative paddles need to be compared with the main selector and the vehicle’s permitted operating modes.

A temperature warning during towing must be handled according to the vehicle’s instructions.

A mismatch between the selected position and dashboard display needs prompt assessment.

A transmission that works during a journey but faults after a short hot stop presents a distinct timing pattern.

Delayed engagement needs a description of duration, temperature and the position selected.

Electronic repair of a removed transmission controller and completion of the vehicle installation are separate stages.