Used Mercedes-Benz X-Class Throttle Body

No — the X-Class (2017–2020) was sold exclusively with turbocharged diesel engines (the 2.3-litre four-cylinder and 3.0-litre V6 units), and diesel engines do not use a conventional throttle body in the way petrol engines do. Diesels control power output through fuel delivery rather than air restriction, so there is no throttle body to replace. If your X-Class has an idle or air management fault, the part you are most likely looking for is the EGR valve, the swirl flap motor, or the intake manifold assembly — confirm which applies to your fault code with a breaker or mechanic.

A throttle body is not fitted to any X-Class variant, so a throttle body will not resolve an intake or idle fault on this vehicle. Diesel air management faults on the X-Class are more commonly traced to the EGR valve, swirl flaps, or a boost pressure issue such as a faulty turbo or charge pipe. Running a diagnostic (OBD) scan and sharing the fault code with a breaker is the fastest way to identify the correct used part you need.

It is worth being cautious here, as the X-Class was diesel-only throughout its entire production run (2017–2020) and genuine throttle bodies in the petrol sense were never fitted to the range. Some listings may mislabel related components such as the intake air control valve or EGR-associated parts as a throttle body. Share your engine code — found on your V5 or via a VIN check — with the breaker so they can confirm exactly which air management component matches your vehicle.

Yes, engine code matters above everything else for mechanical parts on the X-Class — the 220d four-cylinder and the 350d V6 have entirely different intake, EGR, and air management assemblies that will not interchange. The 250d shares its engine family with the 220d but runs at a higher state of tune, so even within the four-cylinder range the specific engine code from your V5 is essential. Give your engine code to the breaker rather than just the badge name to make sure you get the correct component.

No — trim level (Pure, Progressive, or Power) has no bearing on the engine or its associated components; fitment is determined entirely by engine code, not by the trim badge. A Pure and a Power spec X-Class with the same engine code will use identical air management parts. The trim differences are cosmetic and equipment-related, so you can safely disregard trim when sourcing mechanical components from a breaker.