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A transmission control unit (TCU), also known as a transmission control module (TCM), or a gearbox control unit (GCU), is a type of automotive ECU that is used to control electronic automatic transmissions. Similar systems are used in conjunction with various semi-automatic transmissions, purely for clutch automation and actuation. A TCU in a modern automatic transmission generally uses sensors from the vehicle, as well as data provided by the engine control unit (ECU), to calculate how and when to change gears in the vehicle for optimum performance, fuel economy and shift quality.

Mercedes ECU (Transmission) - Part No: A0335457332 / 5WP21101 K04

Transmission 722.9 / 7G-Tronic auto gearbox ECU for Mercedes Our offer includes vehicle module programming Transmission 722.9 / 7G-Tronic auto gearbox ECU for Mercedes? SIEMENS VDO Part No: A033545..


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