Description
OEM part number A0305452332, a genuine Mercedes-Benz W210 E-Class Automatic Transmission ECU, removed from a written-off vehicle and confirmed in working order through testing before being offered for sale.
This transmission control unit stores and executes upshift speed mapping tailored to the W210 E-Class automatic gearbox, determining the exact road speed and engine load combinations at which each ratio change occurs. The unit shares data with the ABS and ESP modules to refine gear selection during traction events, holding a lower ratio when wheelspin is detected to stabilise vehicle behaviour during acceleration out of corners.
Faults stemming from a failing transmission ECU in the W210 E-Class include harsh and abrupt gear changes across all speed ranges, the gearbox warning light illuminating without apparent external cause, the automatic transmission defaulting to a fail-safe operating mode that reduces available gear selection, and in some cases a complete inability to engage ratios above third gear under normal driving loads.
This is a genuine used and tested unit bearing OEM part number A0305452332. Professional installation by a qualified technician is required. A transmission TCU adaptation or basic settings reset must be performed following installation to complete the repair and restore full gearbox function.
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/
