Second Hand Mercedes-Benz ML Oil Pump

The ML has run across three main generations: the W163 (1997–2005), the W164 (2005–2011), and the W166 (2011–2019), and the oil pump is matched tightly to the engine rather than the generation body shell, so crossing the W163-to-W164 boundary is unlikely to work even if the engine code looks similar on paper. Your engine code – found on your V5 or via a VIN check – is the single most useful detail to supply, and you should confirm cross-generation interchange directly with the breaker against your registration before ordering.

Although both sit in the same W164 generation (2005–2011), the ML300 and ML350 use different engine codes – the ML300 typically used a 3.0-litre V6 diesel while the ML350 was available in both petrol and diesel variants with distinct engine families, so the pumps are unlikely to be interchangeable. Always quote your engine code to the breaker rather than just the badge, as the badge alone will not confirm which pump is correct for your vehicle.

Trim level makes no difference to oil pump fitment on the ML; SE, Sport, AMG Line, and similar grades all use the same mechanical drivetrain components within a given engine variant. The pump follows the engine code entirely, so as long as the engine codes match, you can disregard trim differences – just be aware that donor vehicles from higher trims may carry different ancillary brackets or accessories that are cosmetically or functionally different but unrelated to the pump itself.

The W164 ML320 CDI used the OM642 3.0-litre V6 diesel engine, but you should verify your exact engine code from your V5 registration document or a VIN check rather than relying solely on the badge, as production variants and running changes mean not every ML320 CDI is identical. Giving the breaker your confirmed engine code is far more reliable than the model name alone and will help them match the correct pump from their donor vehicle.

Yes, all petrol and diesel engine variants of the Mercedes ML across the W163, W164, and W166 generations use a conventional mechanical oil pump as a standard engine component – every one of these engines requires pressurised lubrication and none used an alternative system that would eliminate the oil pump. Whether a specific used pump from a breaker's donor vehicle is a direct fit for your engine depends on your engine code, so quote that code when requesting quotes on Findapart.

The W166 generation ran from 2011 to 2019 and received a facelift in 2015, but whether the oil pump changed across that boundary depends on whether the engine code and specification remained the same – ancillary and mounting changes mid-production are possible and difficult to confirm without checking. Name the facelift year to your breaker and ask them to verify compatibility against your specific registration, as they can cross-reference the donor vehicle's details with yours to be sure.