XYZ Racing Tarmac Rally Coilovers — Mercedes-Benz C CLASS W205 4 CYL 4WD (Cancellation Kit for Electronic Damping) 2015-2021

Sealed-stage tarmac rally punishes a car in a way B-roads never do: compressions taken flat, crests that unload the tyre mid-corner, and surfaces that switch from smooth asphalt to broken edges without warning. The W205 C-Class 4MATIC brings genuine hardware to that fight – a four-wheel-drive four-cylinder platform with real weight over the front axle – but the factory electronic dampers are tuned for a motorway ride, not a stage note. XYZ Racing’s Tarmac Rally coilover replaces that system entirely.

Because this fitment retains the C-Class’s electronic damping wiring, the kit includes the cancellation module needed to run a fully mechanical, driver-set damper in place of the OEM adaptive unit – no warning lights, no half-measures bridging old and new hardware.

What this coilover does for your 2015-2021 Mercedes Benz C Class

Swapping to a mechanically-adjustable Tarmac Rally set changes how the 4MATIC C-Class reads a stage. Where the standard suspension is calibrated to smooth out road imperfections, this damper tune is built to absorb sharp compressions and big bumps without the body kicking back at the driver mid-corner. That control matters most in transition – the moment load shifts from one side of the car to the other over broken tarmac, where a soft factory setup lets the body roll late and unsettle the rear. Suppressing that secondary shock body movement keeps the contact patch working, which on a 4WD platform means all four tyres stay loaded and able to put power down rather than one corner skipping over a ridge. The cancellation kit means none of that control is compromised by the car fighting its own electronics.

About the Tarmac Rally coilover

XYZ Racing built this damper specifically around sealed-stage tarmac conditions rather than circuit lapping, and the settings reflect the brand’s own tarmac rally programme rather than a generic track calibration. The valving is biased toward absorbing hard, sudden inputs – the kind of jolt you get crossing a mid-corner ridge or a compression taken at speed – rather than the sustained, repeatable loads a circuit car sees lap after lap. That distinction shapes the whole build: the damper is set up to soak up an impact and recover quickly, rather than resist body roll through a long, steady-state corner. The result is a chassis that stays composed when the road surface changes character without notice, with the suppression of shock-body movement translating directly into more usable tyre traction on broken or patched tarmac. For a 4WD C-Class carrying stage-spec drivetrain hardware, that predictability under load is the entire point of running a dedicated rally-tuned damper instead of a road or circuit coilover.

Fitment for the Mercedes Benz C Class W205 (2015-2021)

This kit is built for the Mercedes Benz C-Class W205, four-cylinder, 4MATIC variant, covering the 2015 to 2021 model years – chassis code ME07-7-C. It’s specified with the electronic-damping cancellation kit included, so it’s the correct choice for cars that left the factory with adaptive dampers fitted rather than passive units.

What buyers also search for

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• W205 2015-2021 coilover kit for sealed-stage rally use

Ready to spec your W205 for the next stage – configure yours below to lock in the Tarmac Rally setup for your car.