Used Mercedes-Benz ML Fuel Filter

It depends on the generation and fuel type. Diesel ML models (W163, W164, and W166) do have a serviceable fuel filter, often housed in a canister on or near the engine or in the engine bay fuel line. Petrol ML models typically have a fuel filter integrated into the fuel pump module inside the tank and are not routinely replaced as a separate service item, so if your ML is petrol and you're chasing a fuel delivery fault, confirm with the breaker whether a standalone filter is what you actually need.

These are distinct generations with different engine families and fuel system layouts, so a W164 filter will not simply swap into a W166 even if both are diesel. The W164 ran engines including the OM642 3.0 V6 diesel, while the W166 continued with updated variants of the same family but with revised ancillaries and filter housings. Name the boundary clearly to your breaker and give them your engine code from the V5 or a VIN check, as that is the most reliable way to confirm the correct part.

The W164 received a facelift in 2008 but the core diesel engine codes, notably the OM642, carried across, making the fuel filter likely to be compatible across the facelift boundary in many cases. However, ancillary mounting and filter housing details can change mid-production, so you should confirm the specific part number with the breaker against your registration rather than assume a pre-facelift unit will drop straight in.

Fuel filter fitment on the ML follows the engine code, not the badge or displacement name, so what matters is whether both vehicles share the same engine code. The ML 250 CDI and ML 350 CDI in the W166 generation use different engines, so their filters may differ; supply your engine code to the breaker rather than relying on the badge alone.

Trim level makes no difference to fuel filter fitment on the ML, as Sport, AMG Line, and other trim designations are cosmetic and equipment packages that do not alter the engine or fuel system. What determines the correct filter is your engine code and fuel type, both of which you can find on your V5 or via a VIN check. Any used filter from a matching engine code should be a valid candidate regardless of which trim the donor vehicle carried.

No - the W163 and W164 are entirely separate generations with different engines and fuel system designs, and parts do not cross between them. The W163 predates the OM642 engine family used in the W164, so filter housings, connections, and fittings will be incompatible. Stick to sourcing from the correct generation and give your breaker the engine code to be sure of the right match.