Description
Electronic transmission control unit by MERCEDES, catalog number A0325454332. Confirmed catalog fitment: Mercedes-Benz C-Class S203 (2001–2007), Mercedes-Benz C-Class W203 (2000–2007). For an accurate match, compare the number and identification with the removed part and confirm the vehicle specification by VIN. The fitment list is a reference and does not replace a vehicle-specific compatibility check.
The module communicates with the engine control unit, transmission sensors, hydraulic valve body, and diagnostic system. If it fails, symptoms may include harsh shifting, delayed gear engagement, transmission limp mode, warning messages, or inability to change gears.
Our catalog includes transmission control modules for many vehicle brands and models. Available options include:
genuine factory TCM/TCU modules
reliable aftermarket replacements
tested used units without water damage
modules for automatic gearboxes, CVT, and robotic transmissions
solutions for different transmission generations
Used modules are inspected for electronic functionality, connector condition, and diagnostic response.
Selection is available:
by VIN number
by TCM part number
by transmission type
by software version
by vehicle model and year
Replacing a faulty transmission module restores proper shifting, eliminates transmission errors, and improves driving comfort.
Compatibility
Fits 2 vehicles
Nothing found
About the manufacturer · MERCEDES
Mercedes‑Benz is a German premium automotive brand and one of the oldest automobile manufacturers in the world, with its history dating back to 1886 when Karl Benz created the first gasoline‑powered automobile. Today the...
About the manufacturer · MERCEDES
Mercedes‑Benz is a German premium automotive brand and one of the oldest automobile manufacturers in the world, with its history dating back to 1886 when Karl Benz created the first gasoline‑powered automobile. Today the...