Ford C-Max Catalytic Converter Replacement Parts

This is an important boundary to flag: the original Ford C-Max (Mk1, 2003–2010) and the second-generation C-Max (Mk2, 2010 onwards) are substantially different vehicles with different engines and exhaust systems, so a cat from the earlier generation is very unlikely to suit the later one. Even within the same generation, the correct fit depends on the engine code and fuel type. Confirm the full engine code and registration with the breaker before ordering.

No — petrol and diesel exhaust aftertreatment systems are entirely different. Petrol C-Max engines use a traditional catalytic converter, while diesel variants use a diesel oxidation catalyst (DOC) combined with a diesel particulate filter (DPF) setup; these are not interchangeable in any way. Always confirm the fuel type and engine code with the breaker to make sure you're getting the right part.

Trim level does not affect catalytic converter fitment — the exhaust system follows the engine and emissions specification, not the trim grade. A Zetec and a Titanium sharing the same engine code and year would use the same cat. Bear in mind that any ancillary brackets or heat shields may differ slightly between cars, so check those details with the breaker.

The Mk2 C-Max received a facelift around 2015, so a 2014 car is pre-facelift; whether any exhaust or catalyst changes accompanied that facelift is something you should confirm with the breaker against your registration and engine code, as this is strong confirm-with-breaker territory. What you can be confident about is that the engine code and emissions standard are the key matching factors, not the facelift styling. Give the breaker your full reg so they can verify the exact spec.

The Grand C-Max is a longer, seven-seat MPV that ran alongside the standard five-seat C-Max from 2010 onwards, and while they share engines, exhaust routing and system length can differ between the two body styles. Whether a specific catalytic converter interchanges between the Grand and standard C-Max depends on the engine code and year, and this is exactly the kind of interchange detail to confirm with the breaker directly. Always quote both the full registration and the body style when requesting a quote.

Engine code is a strong starting point, but emissions-era differences — particularly the move to stricter Euro 5 and later Euro 6 standards — can mean a visually similar catalytic converter from the wrong year will not meet the emissions requirements your car was type-approved to, which could cause an MOT failure. A cat from the correct engine code but wrong emissions generation may physically fit but still cause problems. Confirm the specific year, engine code and emissions standard with the breaker before buying.