Second Hand BMW Z4 Window Motor

No — the E85 (2002–2008) and E89 (2009–2016) are completely different generations with different door structures, so their window motors are not interchangeable. Always quote your registration to the breaker so they can confirm the correct generation and side (NS or OS) before ordering.

Both years fall within the E85 generation (2002–2008), so there is a good chance the motors will interchange, but confirm with the breaker against your registration as minor mid-run changes can affect compatibility. Be sure to specify whether you need the nearside (NS, passenger left) or offside (OS, driver right) motor, as they are side-specific.

Engine choice does not affect window motor fitment on the Z4 — the motor is determined by generation and side (NS or OS), not by which engine is under the bonnet. You can safely source from any engine variant within the same generation, and any cosmetic differences between trim specifications are irrelevant to the motor itself.

For most of the E89 run the motors should be consistent, but there was a facelift in 2013 and it is worth confirming with the breaker that the donor car's year matches yours, as minor production changes can sometimes affect parts. Always give the breaker your full registration so they can cross-reference the exact part number.

Yes, electric windows were standard across the BMW Z4 range for both the E85 (2002–2008) and E89 (2009–2016) generations, so window motors do genuinely exist on this model. If you've seen listings without them it is likely down to missing components from stripped donor cars rather than any variant that lacked electric windows.

No — NS (nearside, passenger left) and OS (offside, driver right) window motors are handed and are not interchangeable, so you must specify the correct side when contacting a breaker. Double-check which side has failed before requesting a quote to avoid ordering the wrong part.