Second Hand Mercedes-Benz G-Class Curtain Airbag

Yes, curtain airbags were fitted to the G-Class, though availability depends on the generation and specification — the current-generation W464 (launched 2018 onwards) includes curtain airbags as standard, while their presence on the earlier W463 (1989–2018) is more variant-dependent and often tied to higher specification levels. If you own an older W463, it is worth checking your vehicle's original build sheet or confirming with a breaker against your registration before assuming curtain airbags were fitted. Do not assume a curtain airbag is present just because the car has a side airbag, as these are separate systems.

Almost certainly not — the 2015 model is the older W463 generation, while the 2020 model is the current W464 generation introduced in 2018, and these are entirely different vehicles with different bodyshells, roof structures, and SRS systems. Curtain airbags are generation-specific and the parts are not interchangeable across this boundary. You should source a curtain airbag from a W464 donor vehicle for a 2020 G-Class, and confirm module compatibility with the breaker against your registration.

Trim level is less likely to affect the curtain airbag itself compared to some other interior parts, but you should still tell the breaker your trim — for example AMG Line or AMG 63 variants may have different interior configurations that could influence surrounding fitment. The key factors are generation (W464), door count (the G-Class is a 5-door throughout this generation), and which side you need — nearside (NS, passenger left) or offside (OS, driver right). Confirm SRS module compatibility with the breaker against your registration, as this is a safety-critical component.

Yes, it matters — nearside (NS, left-hand passenger side) and offside (OS, right-hand driver side) curtain airbags are handed and are not interchangeable, as they are shaped to deploy along their specific side of the roofline. Always specify which side you need when requesting a quote from a breaker. Getting the wrong side is a common and costly mistake with airbag parts.

Curtain airbags are safety-critical components and professional fitting by a qualified technician with access to SRS diagnostic equipment is strongly recommended — incorrect installation can result in the airbag failing to deploy in a collision or deploying unexpectedly, both of which are extremely dangerous. It is also worth noting that airbags are single-use; a curtain airbag that has previously been deployed cannot be refitted and must be replaced with an undeployed unit. Always confirm with the breaker that the part is undeployed and undamaged before purchasing.

The W463 ran from 1989 to 2018 and underwent various updates over that long production run, so a curtain airbag from an early W463 is very unlikely to match a late facelift W463 that may have had airbags added or revised. The safest approach is to match donor and recipient vehicles as closely as possible in year and specification, and confirm compatibility with the breaker against your exact registration. Because airbags are safety-critical, do not assume a same-generation part fits without that verification.