Second Hand BMW Z4 Throttle Body

Yes, but only on the naturally aspirated petrol variants — the straight-six and four-cylinder N/A engines used in the E85/E86 (2002–2009) generation and some early E89 (2009–2016) models use a conventional electronic throttle body. The later turbocharged engines (N20, N54, N55 and B48/B58 units) fitted to most E89 and all G29 (2018–present) Z4s do not use a traditional single throttle body in the same way — boost is managed differently, so if your Z4 is turbocharged you are unlikely to need a conventional throttle body replacement. Check your engine code on your V5 or a VIN check to confirm which type of engine you have before searching for this part.

Both years sit within the E85 roadster generation (2002–2009), but fitment depends primarily on sharing the same engine code — for example, the M54 and M56 units used earlier in the generation differ from the N52 that came in later, so a 2004 and 2007 car could easily have different engines despite being the same generation. Give the breaker both engine codes and registrations rather than relying on the year alone, as ancillary and mounting details can vary mid-production and should be confirmed against your specific registration. Never assume year-to-year compatibility without matching engine codes first.

The trim or badge (2.0i, 2.5i, 3.0i) broadly reflects engine size, but what really matters for throttle body fitment is the actual engine code — an M54 3.0i and an N52 3.0i are different engines and will not share the same throttle body. Provide your engine code to the breaker rather than just the badge, as the engine code is the single most reliable way to identify the correct part. Trim level in terms of specification (leather, sport pack and so on) has no bearing on throttle body fitment whatsoever.

The E89 generation ran from 2009 to 2016 and is predominantly turbocharged (N20, N54, N55 engines), meaning most E89 Z4s do not use a conventional standalone throttle body of the type commonly sold as a replacement part. If you have the rarer early N/A variant of the E89, a throttle body may be applicable, but confirm your engine code first before searching. If your car is turbocharged and you are experiencing throttle or power issues, speak to a specialist as the fault is more likely elsewhere in the intake or boost system.

The E85 generation ended in 2009 and the E89 began the same year, but these are entirely different platforms with different engines, so parts do not transfer across this boundary as a rule. Even in the unlikely scenario where both cars share a naturally aspirated engine code, any ancillary or mounting differences between generations should be confirmed directly with the breaker against both registrations. Treat E85 and E89 throttle bodies as non-interchangeable unless a breaker with both vehicles in front of them confirms otherwise.

No — body style has no effect on throttle body fitment whatsoever, as this is purely an engine-driven specification. A Z4 coupe (E86) and a Z4 roadster (E85) with the same engine code will use the same throttle body. Focus on matching the engine code, and let the breaker know your registration so they can cross-reference any mid-production changes that may affect the part.