Mercedes A-Class automatic transmission control unit
Functions of the automatic transmission control unit:
* Gear shift control
* Determination of the optimal switching moment
* Adaptation to driving style
* Diagnosis of automatic transmission faults
* Interface with other vehicle systems such as engine and brakes
Location of the Mercedes A-Class automatic transmission control unit:
*Varies depending on vehicle model and year.
* Usually located next to the automatic transmission itself or in the engine compartment.
Manufacturers of Mercedes A-Class automatic transmission control unit:
* ZF Friedrichshafen
* Voith
*Mercedes-Benz
Mercedes A-Class automatic transmission control unit part numbers:
Part numbers may vary depending on the model, year of manufacture and type of automatic transmission. Some common part numbers include:
* A 003 446 00 84
* A 003 446 10 84
* A 006 446 06 32
Symptoms of a faulty Mercedes A-Class automatic transmission control unit:
*Hard or unpredictable gear shifting
*Slipping or delayed shifting
* Errors or automatic transmission fault indicators on the instrument panel
*Transmission fluid leak
Diagnostics of faults in the Mercedes A-Class automatic transmission control unit:
* Computer diagnostics using a diagnostic scanner
* Physical inspection of control unit and wiring
* Checking the level and condition of the transmission fluid
Replacing the Mercedes A-Class automatic transmission control unit:
* Complex procedure requiring special tools and knowledge.
* It is recommended that you consult a qualified mechanic or Mercedes-Benz dealer.
Cost of replacing the Mercedes A-Class automatic transmission control unit:
*Cost may vary depending on model, automatic transmission type and location.
*Estimated cost ranges from $1,000 to $3,000.