Used Mercedes-Benz GLA Sunroof

Yes, a panoramic sunroof was offered as an option on the GLA across both generations, so used units do exist on the second-hand market. It was never standard on every car though — it was a factory-fitted option, meaning many GLAs left the factory without one. When sourcing a used sunroof, confirm with the breaker that the donor car was actually fitted with one before going any further.

The GLA ran as the X156 (first generation, 2013–2020) and the H247 (second generation, 2020–present), and these are entirely different platforms with different roof structures. A sunroof glass panel, frame, or mechanism from an X156 will not cross to an H247, or vice versa. Stick strictly to the same generation as your own car, and confirm the match with the breaker against your registration.

Trim level does not affect sunroof fitment on the GLA — the roof structure and aperture are the same regardless of whether the donor car was a Sport, AMG Line, Executive, or any other grade. The sunroof assembly itself is identical across trims on the same generation, so you do not need to chase a like-for-like trim donor. Bear in mind that interior headlining colour or finish around the aperture may differ slightly between trims, so check the cosmetic details with the breaker if that matters to you.

Both a 2014 and a 2017 GLA fall within the first-generation X156 (2013–2020), so they share the same platform and roof architecture. In principle the parts should be compatible, but the X156 ran for a long time and there may have been mid-run pressing or mechanism changes that are not always well documented. Name the specific years to the breaker and ask them to check against your registration before committing, just to be safe.

No — engine type has no bearing on sunroof fitment whatsoever. The roof structure, glass panel, and operating mechanism are completely independent of what is under the bonnet. Focus your search on matching the generation (X156 or H247) and confirming the donor car was actually optioned with a sunroof, which is what genuinely matters here.

The X156 received a facelift around 2017, but this primarily affected front-end styling, lighting, and interior updates rather than the roof structure. Whether a pre-facelift or post-facelift X156 sunroof assembly is a straight swap is not something that can be stated with certainty, as subtle changes to the headlining or mechanism are possible. Confirm with the breaker by supplying your registration so they can check the exact part numbers against the donor vehicle before purchase.