Used Volkswagen Caddy Fuel Injector

Yes, all Volkswagen Caddy variants use fuel injectors regardless of whether they run petrol or diesel — diesel engines use high-pressure direct injectors (often called injector nozzles or common-rail injectors), while petrol engines use port or direct injectors depending on the variant. The Caddy has always been available with multiple engine options across its generations, so injectors are a genuine and commonly sourced part. The exact injector type and specification varies significantly between engine codes, so identifying your engine code is essential before sourcing a replacement.

The Mk3 Caddy ran from 2004 to 2015, with a facelift in 2010, so both years sit within the same broad generation — however, this does not automatically mean the injectors interchange, as VW introduced updated engine variants and revised fuel system specifications across that period. The engine code is the critical detail here: if both vehicles share the same engine code (for example 1.6 TDI with code CAY, or 2.0 TDI with code CFHF), there is a much stronger chance of compatibility. Confirm the engine codes from both vehicles with the breaker against your registration before purchasing, as injector specifications can change mid-production even within the same engine family.

Trim level and body style — including the longer Maxi variant — do not affect injector fitment; what matters is the engine fitted to the vehicle. A Caddy C20 and a Caddy Maxi with the same engine code will use the same injector. Focus on matching the engine code, fuel type, and year rather than the trim badge when talking to a breaker.

The Mk4 Caddy launched in 2015 and ran through to 2020, when it was replaced by the Mk5 (the current SB-generation model), and it brought revised engine line-ups that generally do not share injectors with the earlier Mk3 (2004–2015). Crossing the Mk3-to-Mk4 boundary is unlikely to produce a compatible injector even if the engine displacement looks similar, because the fuel system architecture and injector specifications were updated. Always confirm fitment with the breaker by supplying both your registration and engine code, and ask them to check the Mk4 part number directly.

Yes, it matters enormously — diesel and petrol injectors are completely different components operating at different pressures and using different technologies, so they are never interchangeable. Within diesel variants alone, there are further differences between engine codes and even between production years of the same engine, as injector calibration and nozzle specifications can vary. Always specify your fuel type and engine code when contacting a breaker, and be aware that diesel injectors in particular may require coding to the ECU — confirm with the breaker whether the injector you are buying will need any programming work on your vehicle.

Gearbox type can influence injector specification on some VAG engines, so it is worth mentioning to the breaker whether your Caddy is manual or DSG automatic, as the engine management tune can differ between transmission options. The most important detail remains the engine code, which you can find on your V5 logbook or via a VIN check, and this should be the first thing you give to any breaker. Confirm the full specification including gearbox type with the breaker against your registration to make sure the part matches your vehicle's calibration.