BMW 3 Series Camshaft Replacement Parts

The BMW 3 Series has always been fitted with camshafts, but whether one from an earlier car fits yours depends almost entirely on the engine code, not the model year or badge. The 3 Series has run through several generations — E21, E30, E36, E46, E90/E91/E92/E93, F30/F31/F34, and G20/G21 — and even within a single generation multiple different engines were offered, each with its own camshaft specification. Always supply your engine code (found on your V5 or via a VIN check) when asking a breaker for a quote, as this is the single detail that cuts through the confusion fastest.

Yes, petrol and diesel camshafts are completely different parts and will not interchange — the valve timing, lobe profiles, and often the physical dimensions differ between fuel types. Within petrol engines there are further differences between naturally aspirated and turbocharged units, and within diesel engines different variants have their own specifications. Always confirm your engine code with the breaker rather than relying on fuel type alone, as the same fuel type was offered across many different engine families throughout the 3 Series range.

The E90 generation ran from 2005 to 2012 with a facelift introduced in 2008, and while some engines continued largely unchanged across that facelift, others were revised or replaced entirely. If your engine code matches exactly between the donor car and yours, fitment is far more likely, but ancillary and mounting changes mid-production mean you should confirm the specific application with the breaker against your registration before buying. The engine code is your most reliable guide here, and a good breaker will cross-reference it against the donor vehicle's code to advise you.

For the vast majority of 3 Series variants, trim levels like SE, Sport, M Sport, and Luxury are cosmetic and equipment-based distinctions that do not affect the camshaft specification — the camshaft follows the engine, not the badge on the boot lid. The exception worth noting is the full M3 model, which uses a distinct high-performance engine entirely separate from the standard 3 Series engine family and has its own camshaft specification. As long as you match the engine code rather than the trim name, trim level is not a fitment concern.

The F30/F31 generation ran from 2012 to 2019, and the G20/G21 generation replaced it from 2019 onwards — these are distinct platforms with largely different engine families, so a camshaft from an F30 is very unlikely to suit a G20 without a matching engine code. Some engine families did carry across generations in updated form, so there is a small possibility of overlap, but this is exactly the kind of cross-generation boundary question you should put directly to a breaker with both engine codes to hand. Never assume fitment across a generation change without that confirmation.

Body style — whether saloon, Touring estate, coupe, or convertible — has no bearing on camshaft fitment whatsoever, as the camshaft is determined entirely by which engine is fitted. A Touring and a saloon sharing the same engine code will have the same camshaft requirement, so you do not need to seek out a Touring-sourced part if a saloon is available with a matching engine code. Focus entirely on matching the engine code and fuel type when speaking to a breaker.