Used Peugeot Expert Throttle Body

This depends entirely on which engine your Expert has. Diesel engines — which make up the vast majority of Experts on UK roads — do not use a conventional throttle body in the way a petrol engine does; diesels control fuelling differently and any throttle-like valve fitted is an EGR or intake swirl/butterfly valve, not a true throttle body. Petrol-engined Experts did exist but were rare in the UK, and those variants do have a throttle body — so if you have a petrol Expert, read on, but if yours is diesel, a throttle body is almost certainly not the part you need.

No, but it is easy to confuse the two. Diesel Experts often have an intake air control valve (sometimes called a swirl valve or throttle body by parts catalogues) that sits in the inlet manifold and is linked to the EGR system — this is a different component from the throttle body found on petrol engines. If your diesel Expert has a fault with this valve, search specifically for an 'inlet swirl valve' or 'EGR butterfly valve' rather than a throttle body, and give the breaker your exact engine code from your V5 so they can match the correct unit.

These are entirely different generations with different engines and different engine management systems, so a throttle body from a Mk1 Expert (1995–2006) will not be a straightforward swap onto a Mk2 Expert (2007–2016). The engine codes changed across that boundary, and the throttle body design, connector type and calibration requirements changed with them. Confirm the exact engine code from your V5 and raise it with the breaker so they can identify the correct unit for your generation.

No — trim level (whether your Expert is a base L1, L2, or a higher-spec Professional or Tepee variant) has no bearing on throttle body fitment. The throttle body follows the engine, not the badge or body length. What matters is your engine code, fuel type, and the generation of the vehicle, so focus on supplying those details to the breaker rather than worrying about trim.

These vans shared PSA platform and engine family relationships across generations, so there is a possibility of crossover, but you should not assume compatibility without checking. Engine codes and mounting arrangements can differ even between closely related PSA models, and ancillary fitment can change mid-production in ways that are not always documented. Give the breaker both your Expert's engine code and the code from the donor vehicle and ask them to confirm before buying.

This is a genuine concern with modern drive-by-wire throttle bodies, as some require adaptation or coding to the vehicle's ECU after fitting. Whether your specific Expert needs this depends on the engine management system fitted to your variant, and this is something you should confirm with the breaker and your fitting garage before purchasing a used unit — a breaker experienced with PSA vehicles should be able to advise on whether the part needs calibration work after installation.