Description
This listing is for OEM part number A0255450532, a genuine Mercedes-Benz W210 E-Class Automatic Transmission ECU Module, sourced from a written-off vehicle and tested in full working order before dispatch.
The TCU manages adaptive shift learning on the W210 E-Class automatic gearbox, continuously updating its shift programme in response to the driver’s throttle and braking habits to deliver progressively smoother ratio changes over time. In sport mode, the module delays torque converter lockup to provide a more responsive driving feel, while simultaneously coordinating each gear change with the engine ECU to ensure precise torque management during ratio transitions.
Drivers experiencing a failing transmission ECU in the W210 E-Class typically report a delay before the automatic gearbox engages when selecting Drive from stationary, noticeable engine speed flares between upshifts caused by slow clutch pack engagement, a complete absence of kickdown function when attempting to overtake, and the gearbox warning lamp illuminating on the instrument panel.
This is a genuine used and tested unit. OEM part number is A0255450532. Professional installation by a qualified technician is required. Transmission TCU adaptation or a basic settings reset must be completed after fitting to finalise the repair and restore normal automatic gearbox operation.
Returns accepted only for genuine faults — faulty on arrival, not as described, or wrong part supplied — requested within 14 days, with all 3 anti-tamper stickers intact. No returns for change of mind, incorrect installation, coding/programming, or buyer compatibility errors; checking compatibility (OEM number, firmware, vehicle) is the buyer’s responsibility. Full policy: https://giantparts.eu/refund-and-returns/
