Mazda CX-3 Window Regulator Replacement Parts

The Mazda CX-3 ran as a single generation from its UK launch in 2015 through to around 2021, with a facelift arriving for the 2019 model year, so a 2016 and a 2019 are from the same generation but sit either side of that facelift boundary. Whether the regulator itself interchanges across the pre- and post-facelift cars is something you should confirm with the breaker using your registration, as door frame or mechanism details can change at a facelift even when the generation name is the same. Make sure you also specify the correct side — NS (nearside, passenger left) or OS (offside, driver right) — as regulators are not interchangeable between sides.

No, NS (nearside, passenger side) and OS (offside, driver side) window regulators are specific to their side and are not interchangeable — the mechanisms are mirror images of each other. When contacting a breaker, always state clearly which side you need along with whether it is the front or rear door, as front and rear regulators also differ. Getting the side wrong means the regulator simply will not fit.

Trim level — whether SE, SE-L, Sport Nav, or GT Sport — does not affect window regulator fitment, as the door frame and regulator mechanism are the same across the range for the same door position and generation. You may find cosmetic differences such as door trim panels or switches between trims, but the regulator itself is not trim-specific. Confirm the generation, model year, door position, and side (NS or OS) with your breaker and you should be fine.

No, front and rear window regulators are different parts with different mechanisms and fixings, so you must specify which door position you need when getting a quote from a breaker. The CX-3 is a five-door model, so there are rear door regulators available, but again these are side-specific — NS rear and OS rear are not interchangeable. Always give the breaker your full registration so they can match the correct part to your exact car.

The CX-3 received a facelift for the 2019 model year, and while both sit within the same overall generation, you should not assume that a regulator from a pre-2019 car will drop straight into a post-2019 facelift model without checking. Name the boundary to your breaker and ask them to verify compatibility against both registrations before purchasing, as door internals can be revised at a facelift refresh. This is especially important for electric regulators where motor or wiring details may differ — confirm with the breaker against your registration.

Yes — the three most important details are the model year (to establish which side of the 2019 facelift your car sits on), the door position (front or rear), and the side (NS for nearside/passenger left or OS for offside/driver right), as getting any of these wrong means the part will not fit. Engine type and trim level do not affect regulator fitment, so you do not need to worry about those. Give the breaker your full registration number and they can cross-reference the correct part for your specific vehicle.