Second Hand Peugeot 306 EGR Valve

EGR valves were fitted to diesel-engined 306s but not to petrol variants, which did not use exhaust gas recirculation in this era. If your 306 has a petrol engine, it will not have an EGR valve and you will need to check whether a different emissions-related component is causing your fault. Confirm your fuel type from your V5C or registration before searching.

The 306 ran from 1993 to 2002, with a significant facelift in 1997 that updated the body but kept broadly similar diesel engine families across the range. Because EGR valves are matched to the engine code rather than the body style, the key question is whether the engine code on the donor car matches yours exactly, not simply whether both are pre- or post-facelift. Always confirm the engine code with the breaker against your registration before purchasing.

No — trim levels such as XN, XL, XR, XT, or Meridian do not affect EGR valve fitment; what matters is the engine code and fuel type. A 306 diesel in a base XN spec and one in a higher XT spec with the same engine will use the same EGR valve. You can safely ignore trim differences when searching, though the breaker may still ask for your registration to confirm the engine code.

It can do, but the 306 used more than one 1.9 diesel variant over its life and engine codes can differ even within the same displacement, which can affect the EGR valve specification. Do not assume that a 1.9 badge alone guarantees compatibility — give the breaker your full engine code (found on the engine bay plate or V5C) alongside your registration so they can cross-reference accurately. Never rely on displacement alone for EGR valve matching.

A correctly matched used EGR valve should not in itself cause an MOT failure, provided it is the right part for your engine and is functioning properly once fitted. The EGR system on 306 diesels of this era predates DPF requirements, so there are no DPF-related MOT considerations to worry about on this model. Have the part confirmed against your engine code by the breaker before buying, and ensure it is fitted and tested before presenting the car for inspection.

Peugeot used shared diesel engines across several models in this period, so there is a reasonable chance of cross-model compatibility where the engine code is identical, but this is not guaranteed as ancillary components could differ by application. Confirm with the breaker that the part number or engine code matches your specific vehicle rather than assuming engine family similarity is enough. This is especially important when sourcing from a different model rather than another 306.