Описание
Оригиналният номер на част A6121536679 идентифицира този като оригинален <a href="/brand/mercedes-benz“>Mercedes-Benz engine control unit for the W209 CLK-Class coupé and cabriolet, manufactured to factory standards and extracted from a written-off donor vehicle. Tested for correct operation and available as an OEM replacement for the second-generation CLK range. ¶ This ECU handles exhaust aftertreatment co-ordination and catalytic converter warm-up strategy for the W209. It activates secondary air injection at cold start, monitors rear oxygen sensor feedback for catalyst efficiency, and adjusts injection pulse width to promote rapid light-off of the three-way catalyst, ensuring emissions readiness from initial start-up. ¶ ECU faults on the W209 CLK-Class can manifest as failed MOT emissions tests, illuminated catalytic converter efficiency warning codes, poor cold-start quality, stalling in reverse gear, and occasional misfires under light acceleration at low engine speed. Secondary air pump-related fault codes are particularly common on ageing units. ¶ This tested used module was removed from a written-off CLK-Class. Verify OEM number A6121536679 against your original before purchasing. Specialist installation is required, and ECU coding or SCN adaptation will typically be necessary following fitment.
Приемаме връщания само при реални дефекти — повреда при доставка, несъответствие с описанието или грешно доставена част — заявени в рамките на 14 дни, с всички 3 защитни стикера непокътнати. Не приемаме връщания при промяна на решението, неправилен монтаж, кодиране/програмиране или грешка на купувача при проверка на съвместимостта; проверката на съвместимостта (OEM номер, софтуер, автомобил) е отговорност на купувача. Пълни условия: https://giantparts.eu/refund-and-returns/
