Used BMW Z4 Bulkhead

The BMW Z4 has run across two main generations: the E85/E86 (2002–2009) and the G29 (2019–present), with the intermediate F20-based E89 roadster running from 2009–2016. A bulkhead from one generation will not fit another, as the platforms and body structures are entirely different. Always match your donor car's generation to your own before buying from a breaker.

Both years fall within the E85/E86 generation (2002–2009), so the basic platform and body structure are shared. However, BMW made various mid-generation pressing changes to the E85/E86 during its production run, so whether a specific bulkhead pressing will interchange directly between a 2005 and a 2008 car is something you should confirm with the breaker against your registration. Give the breaker both VINs and they should be able to cross-reference the part numbers before you commit.

Both years sit within the E89 generation (2009–2016), which means the underlying platform is the same across that span. That said, BMW introduced updates during the E89's production life, and whether any pressing changes affect bulkhead fitment across those years is worth confirming with the breaker against your registration. Naming the generation to your breaker is a good starting point, but always verify on the VIN.

No — the E89 (2009–2016) and the G29 (2019–present) are entirely separate generations built on different platforms, and a bulkhead from one will not fit the other. These are not interchangeable; make sure any part you source is from the correct generation for your car.

No — trim and engine variants do not affect bulkhead fitment on the Z4; it is the generation and body structure that determine compatibility, not whether the car is an sDrive20i, sDrive30i, sDrive35i, or M40i. You may find cosmetic or minor finishing differences between donor cars depending on how they were specced, so mention this to the breaker so they can flag anything unexpected. The key questions to answer are generation (E85/E86, E89, or G29) and your exact registration, not trim level.

The E85 roadster and E86 coupe share the same generation (2002–2009) and the same basic platform, and the bulkhead sits at the front of the cabin structure where body style differences between the open and closed variants may or may not affect the pressing. Whether the bulkhead transfers directly between the E85 and E86 is something you should confirm with the breaker against both registrations, as subtle structural differences between the roadster and coupe body styles could matter here. A good breaker will be able to compare part numbers for you before any money changes hands.