Used Mercedes-Benz CLA Wheel Arch Liner

The CLA ran in two distinct generations: the first-gen (C117) from 2013 to 2019, and the second-gen (C118) from 2019 onwards, and the body pressings changed completely between them, so arch liners from one generation will not fit the other. Stick strictly to the same generation when sourcing a used liner. If you are unsure which generation your car is, give the breaker your registration and they can confirm before pulling the part.

The first-gen CLA (C117) received a facelift in 2016, and while some exterior panels were revised at that point, wheel arch liners are generally less affected by facelift changes than front-end panels — however, whether the pre-facelift and post-facelift liners are fully interchangeable is something you should confirm with the breaker against your registration rather than assume. Always give the breaker your full reg so they can check the exact part number against your build date.

Trim level does not affect which wheel arch liner fits your CLA — the liner itself follows the body structure, not the specification level. You may find that cars from higher trims have slightly different paint finishes or surface textures on visible sections of the liner, so a used part may show a cosmetic difference, but fitment will not be impacted. Any CLA arch liner from the correct generation will fit regardless of whether the donor car was an SE, Sport, AMG Line, or AMG Line Premium.

Yes, front and rear arch liners are completely different parts and are not interchangeable, so you must specify which corner you need when contacting a breaker. Also make clear whether you need the nearside (NS, left-hand side) or offside (OS, right-hand side), as these are handed parts. Getting both the front/rear position and the NS/OS side right is essential before the breaker pulls the part.

No — wheel arch liners are body-related parts and are the same across all engine variants and drivetrain options on the CLA, including 4MATIC four-wheel-drive models. You do not need to worry about whether the donor car was a petrol, diesel, or 4MATIC when sourcing a liner. Generation and body position (front or rear, NS or OS) are the only details that matter.

Both a 2017 and a 2015 CLA fall within the first-gen C117 generation (2013–2019), but 2017 is after the 2016 facelift while 2015 is pre-facelift, which means there is a potential pressing change at that boundary. Whether the arch liner specifically changed at the 2016 facelift is something you should confirm with the breaker against both registrations rather than assume it is fine — many breakers can cross-reference part numbers to check before committing.