Description
Carrying OEM reference A6121537779, this engine control module is a genuine mercedes-benz“>Mercedes-Benz part for the W209 CLK-Class, the second-generation CLK coupé and convertible produced from 2002 to 2010. Recovered from a written-off vehicle and tested against original specification data, it is available as a direct OEM replacement. ¶ This ECU manages COMAND system integration signals and interfaces with the Electronic Traction Control system to regulate torque output during wheel slip events. It also handles variable camshaft timing actuation for the CLK V6 engines, adjusting intake and exhaust cam phasing to balance low-speed torque with high-speed power delivery. ¶ W209 CLK owners may observe ECU-related issues including loss of traction control function, flat spots in mid-range acceleration, variable idle quality, unexpected limp-home activation, and fault codes for camshaft timing or Kompressor boost pressure on supercharged variants. Erratic instrument cluster readings may also appear. ¶ This is a tested used module from a written-off W209 CLK. Confirm OEM part number A6121537779 matches your existing ECU before placing an order. Specialist fitment and post-installation coding or SCN adaptation to the vehicle’s VIN are required. A 14-day return period is offered on this part.
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/
