Cheap Mercedes-Benz GLS Window Switch

The GLS is a five-door SUV, so the key details are which generation your car belongs to and which door position the switch is for — NS (nearside, passenger side) or OS (offside, driver side). The master switch on the driver's door differs from the individual switches on passenger doors, so confirm exactly which switch you need before contacting a breaker. Always quote your registration to the breaker so they can match the part precisely.

The X166 and X167 are entirely different generations with different interior architectures, so a window switch from one will not fit the other. The X167 generation introduced a significantly revised interior and switch panel design that is not compatible with X166 parts. Always confirm the generation with the breaker and provide your registration number.

The engine variant does not affect window switch fitment — all GLS variants share the same five-door body, so trim and engine designation alone do not change which switch you need. What matters is the generation (X166 or X167), the door position (driver's master switch or individual passenger switch), and NS or OS side. Confirm these details with the breaker rather than relying on the engine badge.

The X167 generation runs from 2019 onwards, and there may be mid-cycle updates that affect interior switch design, so a switch from an early X167 may not be identical to one from a later facelift car. Confirm the exact model year and any known facelift variants against your registration with the breaker before buying. This is especially important if your car has a fully digital or updated interior specification.

Yes, the driver's door (OS) carries the master window switch, which typically controls all windows in the vehicle and is physically larger with more buttons than the individual NS passenger door switches. These are not interchangeable, so make sure the breaker knows you need the OS master switch rather than a single-window passenger switch. Provide your registration and generation details to ensure the correct part is sourced.

The GLS (X166 and X167 generations) is closely related to the GLE and the older GL (X164 and X166-era GL), but switch designs and connector configurations can differ between model lines and generations, so cross-model fitment cannot be assumed. Some parts may physically resemble each other yet have different wiring connectors or button layouts. Ask the breaker to check compatibility against both vehicles' registrations before purchasing.