Mercedes CLA W118 C118 2019+ rear diffuser — the sporty signature your coupe was missing
Transform the rear of your Mercedes CLA W118 / C118 / X118 (CLA45, CLA35, CLA180, CLA200, CLA250) from 2019 onwards with this Mercedes CLA rear diffuser in AMG style. It enhances the silhouette of your coupe and gives it a bold presence. The CLA has one of the most beautiful lines in the range, but its original rear bumper remains understated: this diffuser fills that gap and finally gives the rear the character that the rest of the car already promised.
A design that transforms the rear of your CLA
With its integrated exhaust outlet and vertical fins, this diffuser fits perfectly with the original rear bumper for an authentic racing look. The vertical fins create a play of shadows that visually lowers the car and widens its stance.
From a rear three-quarter angle, the effect is immediate: the CLA appears lower, wider, and more planted on its wheels. This is exactly what enthusiasts of AMG-look rear diffusers are looking for — a piece that doesn't shout, but is enough to make an expert say that your coupe is a superior version.
Material, finish & manufacturing quality
Made of durable high-density ABS, this diffuser is available in a silver or black finish depending on the variant. Its quality materials guarantee long-lasting durability against road debris, gravel, and repeated washing.
ABS is the benchmark material for this type of styling piece: rigid without being brittle, it retains its shape in both the sun and extreme cold, unlike lower-quality plastic which warps. The gloss black finish provides a sharp contrast on light-colored bodywork, while the silver version opts for a more discreet AMG callback.
- CLA C118 rear diffuser with AMG design — vertical fins and integrated exhaust outlet.
- Choice of silver or black finish — two looks depending on your body color.
- High-density ABS — a rigid and stable material designed to last below the bumper line.
- Clip and fastener mounting — no irreversible modifications to the original bumper.
- Immediate visual transformation — the rear gains the stance of the sportiest versions.
Installation on your Mercedes CLA W118
The rear diffuser mounting is done with clips and fasteners on the rear bumper. Compatible with the CLA W118 / C118 from 2019 onwards depending on the version (CLA35 or CLA45); check your vehicle's configuration before installation. A careful installation, ideally by a professional, ensures a flawless finish.
Installation tip: position the piece without fixing it permanently before any final fastening, check the symmetry relative to the exhaust outlets and the bumper edges, and work on a clean and degreased surface. Installation at a mild temperature significantly improves the hold of any adhesive fasteners.
Does a rear diffuser really change the line of a CLA?
Yes, and much more than you might think. The bottom of the bumper is the area that defines the perceived height of the vehicle: by adding a ribbed and contrasting piece, you visually lower the rear and widen the visual stance. On a four-door coupe with an already taut design like the CLA, this rear bumper diffuser is enough to make an entry-level finish look like a sporty version, without touching the mechanics or the paint. And since the piece is simply attached, the transformation remains reversible.
Why order your CLA rear diffuser from Becquet Voiture?
Becquet Voiture is a French specialist in automotive customization and bodywork parts, with a catalog built model by model. For a styling piece, fitment precision is everything: we specify the chassis and versions concerned, and our support answers in French before your order.
Reinforced packaging to protect the edges of the piece, order tracking, and installation advice: your Mercedes CLA bodywork accessory arrives ready to be installed.
Give your CLA the rear signature of a true AMG: order your diffuser now.
Type: Rear bumper diffuser
Compatible brand / model: Mercedes CLA W118 C118 X118 (CLA35 CLA45 CLA180 CLA200 CLA250)
Years: 2019 and newer
Material: ABS
Position: Rear
Finish: Silver or black depending on the variant
Installation: Clips and fasteners, to be checked depending on the version
Condition: 100% New
Main function: Sporty bodywork style
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