Second Hand BMW Z3 Camshaft

Yes, every engine variant fitted to the BMW Z3 has at least one camshaft — it is a fundamental part of any petrol engine, controlling the opening and closing of the valves. The Z3 was sold exclusively with petrol engines in the UK, and depending on the variant, the engine may have a single camshaft (SOHC) or twin camshafts (DOHC), so the exact number and specification of camshafts fitted to your car depends entirely on which engine you have. Your engine code, found on your V5 or via a VIN check, is the single most important detail to have before searching for a replacement.

The BMW Z3 ran from 1996 through to 2002 in the UK, with a facelift arriving around 1999 that brought exterior and interior updates but did not necessarily change the underlying engines. What matters for camshaft fitment is the engine code, not the model year — so a pre-facelift and post-facelift Z3 running the same engine code could share the same camshaft, while two cars from the same year with different engine codes almost certainly would not. Match by engine code first, and confirm the specific interchange with the breaker against your registration before buying.

Trim level has no effect on camshaft fitment — the camshaft follows the engine, not the badge or trim package. The M Sport designation on a Z3 was a cosmetic and suspension package, not a different engine, so an M Sport and a standard Z3 sharing the same engine code will use the same camshaft. What you do need to check is whether your car has one of the high-output M-badged engines (such as those in the Z3 M Roadster or M Coupé), as those used a completely different engine with different camshafts to the mainstream Z3 range.

Yes — the 1.9 and 2.8 are entirely different engines with different camshafts, so these are not interchangeable at all. The 2.8 is a six-cylinder engine and will have different camshaft profiles and dimensions to the four-cylinder 1.9 unit. Always give the breaker your engine code (printed on your V5 or available from a VIN check) rather than just the badge, as this removes any ambiguity about exactly which unit your car has.

Within a given engine code, camshafts are generally consistent, but there can be running production changes to ancillary components and mounting arrangements that are difficult to pin down precisely. Name the engine code to the breaker and confirm against your registration, as they can cross-reference the part number to make sure the unit they have matches your build date. Relying on year alone without the engine code is the most common mistake buyers make and can result in ordering the wrong part.

The Roadster and Coupé body styles make no difference whatsoever to camshaft fitment — the camshaft is an internal engine component and is entirely unaffected by the body the engine sits in. Provided the engine codes match between the two donor cars, the camshaft will be the same part. Confirm the engine code with the breaker and let them match it by registration to be certain.