Cheap Peugeot 508 Throttle Body

It depends on the engine. Petrol-engined 508s — such as those fitted with the 1.6 THP or 2.0 litre petrol units — do have a throttle body as part of their intake system. Diesel engines (HDi and BlueHDi variants) do not use a traditional throttle body in the same way; they may have an air control valve or EGR-related butterfly valve, but this is a different component — if you have a diesel 508, confirm with the breaker exactly which valve you need before ordering.

Almost certainly not — the two generations use different engine families, different intake manifold designs, and different ECU architectures, so a first-gen part is very unlikely to cross over to the second-gen car. The engine code is the most reliable guide here, and you should supply your exact engine code (found on your V5 or via a VIN check) to the breaker rather than relying on year alone. Never assume fitment across the 2018 generation boundary.

No — body style makes no difference to throttle body fitment on the 508. The throttle body is determined entirely by the engine code, not by whether the car is a saloon or SW estate. Give the breaker your engine code and fuel type and they can match the correct part regardless of body style.

No, trim level does not affect throttle body fitment on the 508. Active, Allure, GT, and GT Line trims across the same generation share the same engines, so the throttle body is identical for a given engine code regardless of which badge is on the bootlid. Focus on supplying your engine code to the breaker — that is the one detail that matters.

The first-generation 508 was facelifted in 2014 with styling updates, but the core petrol engine families carried over, meaning the throttle body may well interchange between pre- and post-facelift cars on the same engine code. However, there can be ancillary or mounting changes introduced mid-production that are not always documented, so confirm the exact engine code and part number with the breaker against your registration before buying to be certain.

Throttle bodies on the 508 typically require a throttle-stop reset or relearn procedure after fitting, which a diagnostic tool can carry out — this is standard practice rather than a concern unique to used parts. Whether the unit needs any deeper ECU pairing or immobiliser-related coding depends on the specific engine management setup, so confirm this with the breaker or a Peugeot specialist against your registration before purchasing a used part.