Automatic transmission control unit (AT) for Mercedes-Benz W211 (E-Class):
722.900 (5-speed automatic transmission)
* A 211 270 13 61
* A 211 270 14 61
* A 211 270 15 61
* A 211 270 16 61
722.640 (6-speed automatic transmission)
* A 211 270 01 61
* A 211 270 02 61
* A 211 270 05 61
* A 211 270 06 61
* A 211 270 07 61
* A 211 270 11 61
* A 211 270 22 61
* A 211 270 24 61
* A 211 270 25 61
* A 211 270 26 61
* A 211 270 38 61
* A 211 270 39 61
* A 211 270 40 61
* A 211 270 41 61
* A 211 270 42 61
Location of the automatic transmission control unit:
*Under the hood, on the left side of the engine, next to the air filter.
Functions of the automatic transmission control unit:
* Gear shift control depending on driving mode, engine speed and load.
* Adaptation to individual driving style.
* Transmission overload protection.
* Diagnosis of possible automatic transmission faults.