XYZ Racing Tarmac Rally Coilovers — Mercedes-Benz C CLASS W204/S204 6 CYL (Cancellation Kit for Electronic Damping) 2007-2014

Stage rally on tarmac punishes a chassis in a way road driving never does – mid-corner compressions on crested apexes, transitions taken flat that a road car would roll through gently. The Tarmac Rally coilover for the six-cylinder W204/S204 C-Class is built for exactly that repeated, violent load cycle, not a single track-day stint.

Because this fitment carries the electronic damping cancellation kit, the coilover fully replaces the factory adaptive damper control rather than working alongside it – the electronics are cancelled out and the car runs on the coilover’s own valving from that point on. For a six-cylinder W204/S204 that means a heavier nose than the four-pot cars and more mass to control through direction changes, which is where a rally-specific damper tune earns its keep.

What this coilover does for your 2007-2014 Mercedes Benz C Class

Fitted to a 2007-2014 six-cylinder C-Class, the Tarmac Rally set-up is tuned to soak up the kind of surface irregularity a stage throws at a car – broken tarmac, camber changes, the odd pothole taken at speed – without the body kicking sideways or the axle skipping. The damper is built to absorb hard bump strikes and immediately settle the body rather than let it pogo into the next compression, which keeps the tyre’s contact patch loaded and gripping instead of hopping. On a car carrying six-cylinder weight over the front axle, that settled behaviour matters more than on the lighter four-cylinder cars – there’s more mass for the damper to arrest each time the road throws a jolt through the suspension. The end result on this chassis is a car that holds its line stage after stage instead of getting progressively looser as the surface roughens.

About the Tarmac Rally coilover

XYZ Racing built the Tarmac Rally line specifically around stage work on sealed surfaces, drawing on the brand’s own tarmac rally programme to set the damping curve rather than adapting a track-day valving for the job. The core job of the damper is absorbing the impact of uneven pavement – big hits included – and suppressing the resulting body shock so the tyre keeps its traction instead of skating across the surface. That shock control is what XYZ Racing describes as delivering stable, predictable handling over a stage rather than a single hot lap, and every setting in this kit is carried over from the marque’s own rally experience rather than generic road-going assumptions. For the W204/S204 six-cylinder application, that means the valving has to account for the extra weight over the front wheels while still reacting quickly enough for stage-speed direction changes.

Fitment for the Mercedes Benz C Class (2007-2014)

This kit is built for the Mercedes Benz C-Class W204/S204, six-cylinder, spanning the 2007-2014 production run, and is supplied with the cancellation kit required to fully replace the factory electronic damping control on cars so equipped. Confirm your car sits within this chassis code and engine configuration before ordering, since the electronic cancellation hardware is specific to this variant.

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