Description
This genuine Engine ECU Module — OEM reference A6461531279 — is a used and tested unit for the Mercedes-Benz W211 E-Class. The W211, produced from 2002 to 2009, represented a significant step forward in Mercedes engine management complexity, particularly for its CDI diesel variants.
The W211 CDI engine range relies on an advanced ECU to govern common-rail injection pressure, pilot and post-injection events, EGR valve position, boost pressure management, and DPF regeneration cycles — all coordinated to meet stringent Euro 3/4 emissions standards and deliver exceptional torque.
A faulty ECU in the W211 may produce symptoms including excessive black smoke, poor cold-start performance, rough running at idle, significant power loss under load, limp mode activation, or a series of CDI-specific fault codes relating to injection timing or rail pressure.
This part is sold tested and in working condition. Verify OEM number A6461531279 against your engine code (particularly for 646-series engines) before purchase. Specialist installation is essential, and full ECU coding and adaptation will be required post-fitment. 14-day returns accepted.
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/
