BMW 1 Series Window Winder Motor Replacement Parts

No — the E87 (2004–2013, covering the first-generation 1 Series hatchback) and the F20 (2011–2019, second generation) are entirely different body shells, and the door structures are not interchangeable. Always buy a motor matched to the correct generation: E87 for the first-gen or F20/F21 for the second-gen. Confirm the exact part against your registration with the breaker before ordering.

A 2008 car is E87 first-generation, while a 2012 car sits in the transitional overlap period — the F20 launched in 2011, so a 2012 car is almost certainly F20 second-generation, meaning the two motors are unlikely to be compatible. You need to confirm which generation your 2012 car actually is before sourcing the part. Check your registration with the breaker so they can verify the body code before supplying.

Yes, it matters for the front doors — the 3-door (F21 or E81) and 5-door (F20 or E87) share the same generation platforms but have different front door frames, so the regulator and motor assembly is not the same between body styles. Rear doors on the 5-door are specific to that body style and have no 3-door equivalent at all. Always tell the breaker whether your car is 3-door or 5-door when requesting a quote.

Trim level does not affect window winder motor fitment — whether your car is an SE, Sport, M Sport, or M135i, the motor is determined by generation, body style (3-door or 5-door), and which side of the car you need (NS for the passenger/left side, OS for the driver/right side). You may find cosmetic differences such as door card colour or stitching when buying a used unit, but those do not affect whether the motor fits. Confirm the generation, door count, and NS or OS with your breaker and the trim name can be disregarded for fitment purposes.

In UK convention, nearside (NS) is the passenger side (left when sat in the car), and offside (OS) is the driver's side (right). Identify which window is faulty and tell the breaker NS or OS accordingly, along with whether your car is 3-door or 5-door and which generation it is. Getting the side wrong is one of the most common reasons a used motor turns out to be unusable, so double-check before ordering.

The F20 received a facelift in 2015, but whether the door internals and motor mounting changed across that facelift boundary is not something that can be confirmed as fact here — the door structure may well be the same, but this is exactly the kind of detail that varies by production run. Name your registration to the breaker and ask them to check the specific part number against your car before they supply. Never assume pre- and post-facelift components interchange without that check.