Mercedes-Benz Sprinter Window Motor Replacement Parts

The Sprinter has gone through distinct generations — the W903 (first generation, roughly 1995–2006), the W906 (second generation, 2006–2018, with a facelift around 2013–2014), and the W907 (third generation, 2018–present) — and motors are not interchangeable across these generational boundaries due to differences in door construction and regulator design. Within the same generation, fitment is much more likely to align, but always confirm the exact generation against your registration with the breaker before buying. Never assume a cross-generation swap will work without verification.

Yes, side matters: the NS (nearside, passenger/left) and OS (offside, driver/right) window motors are specific to their respective doors and are not interchangeable. When sourcing a used motor, always tell the breaker which side you need so they can supply the correct unit. Using the wrong side will result in a motor that does not align with the regulator mechanism.

For the front doors, wheelbase and body length make no difference to the window motor — the front door is the same across short, medium, and long wheelbase variants within the same generation. However, if your Sprinter has a sliding side door with a powered window, that door's motor can vary depending on the body configuration, so confirm the exact body type with the breaker when sourcing a sliding-door motor. For most buyers sourcing a standard front window motor, wheelbase is not a concern.

Trim level does not affect the physical fitment of the window motor, as the door construction and regulator mechanism are consistent across trim grades within the same generation and side. What may differ between trim levels is whether electric windows were fitted as standard or as an option, so confirm your van actually has electric front windows before ordering. Any trim-related cosmetic differences to the door card or switches are separate from the motor itself.

Your 2015 Sprinter is a facelifted W906, and while the overall generation runs from 2006 to 2018, there were changes around the 2013–2014 facelift that may or may not affect window motor or regulator compatibility depending on the specific door and side. The generation boundary is well established, but whether a pre-facelift (2006–2013) motor crosses cleanly into a post-facelift (2013–2018) van is something you should confirm directly with the breaker against your registration number. Always provide your full registration so the breaker can check the exact part reference.

Engine choice has no bearing on window motor fitment whatsoever — the motor is part of the door assembly, which is identical regardless of what engine is under the bonnet. Focus instead on getting the generation, side (NS or OS), and door type correct, as those are what determine whether the part will fit. This means a motor pulled from any engine variant within the correct generation and side should be mechanically compatible with your door.