XYZ Racing Tarmac Rally Coilovers — Mercedes-Benz GLK X204 2008-2015

The X204 GLK is a heavy compact SUV with a high centre of gravity, a softly sprung air or steel setup from the factory, and a chassis that was tuned for refinement over response. On standard suspension it rolls noticeably through quick direction changes and the nose dives under hard braking – exactly the behaviour the Tarmac Rally coilover is built to remove from a Mercedes Benz GLK X204 (2008-2015).

This is the rally-derived spec applied to fast tarmac use: stiffer base rates, a wider damping window, and ride-height adjustment that lets you drop the GLK into a stance that actually suits its proportions. It is a serious upgrade for an X204 owner who wants the car to behave like a tied-down estate rather than a tall family SUV.

What this coilover does for your 2008-2015 Mercedes Benz GLK X204

You feel the difference the first time you load the front axle. Body roll drops, the nose sits flatter into a corner, and the GLK stops floating over mid-corner bumps the way it does on the original dampers. The multi-way damping adjustment lets you run a firmer setting for B-road or trackday work and back it off for motorway miles, so the car keeps its long-distance manners. Ride-height adjustment closes the wheel-arch gap that makes a stock X204 look ungainly, without sacrificing the geometry you need for daily use. Under braking the front end stays composed, which gives you far more confidence to lean on the brakes deep into a corner.

About the Tarmac Rally coilover

Tarmac Rally is XYZ Racing’s spec for cars that need to deal with broken surfaces at speed without losing tarmac-grade body control. The damper bodies are monotube, with separately tuned rebound and compression behaviour matched to a heavier chassis like the X204. Spring rates are picked to handle the GLK’s weight without overwhelming the dampers, and the platforms allow independent ride-height adjustment so corner weights can be balanced. The kit is fully rebuildable – dampers can be stripped, reseated and revalved as preferences or use-case change, rather than being thrown away at the end of their first life. It is built for owners who plan to keep the car and keep developing it.

Fitment for the Mercedes Benz GLK X204 (2008-2015)

This kit fits the X204-generation Mercedes Benz GLK from 2008 through to 2015, covering both pre-facelift and facelift cars on standard steel suspension. Confirm your factory setup before ordering if your GLK was originally specced with the optional adaptive damping system, as that hardware is replaced by the coilover.

What buyers also search for

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Build yours below – pick the spring rate and ride-height window that suits how you actually use the GLK.