Wheelhouse liners are the moulded plastic or felt panels that line the inner surface of the wheel arch, fitting between the bodywork and the tyre. They serve a dual role: shielding the wheel arch metal from stone chips, road grit, and standing water thrown up by the rotating tyre, and reducing the tyre roar and impact noise transmitted into the cabin. Without the liner in place — or with one that has cracked and separated from its retaining clips — the bare metal of the wheel arch is exposed to constant abrasive and corrosive attack. Salt-laden road spray during winter driving accelerates this damage significantly, and rust that begins on the inner surface of the arch is notoriously difficult to spot before it has spread to a structural area. A liner that has detached partially from its clips also flaps against the tyre at speed, creating an intermittent slapping noise that increases with road speed and can eventually contact the tyre sidewall. Polcar and BLIC are the dominant suppliers of wheelhouse liners in the aftermarket, covering an extensive range of European car models with precise fit parts. Van Wezel and Prasco also offer broad coverage, particularly for German and French marques. Fitment is model-specific down to body style — the liner for a hatchback and an estate of the same model are often different — so the OE reference is the definitive guide.
Wheelhouse liners are specific not only to the make and model but also to the body variant (hatchback, estate, saloon), the axle position (front or rear), and in some cases the left-hand versus right-hand side. Use the vehicle selector on this page with full model details to find the correct references. If possible, note the part number on the original liner — most manufacturers mould it into the plastic — as this confirms the exact side and position variant.
OEM liners are produced to the vehicle manufacturer's clip-hole pattern, panel thickness, and material specification, ensuring they drop into place without modification and retain all retaining clips at the correct positions. Quality aftermarket liners from Polcar or BLIC are manufactured to matching profiles and use equivalent materials. Budget alternatives occasionally have slightly different clip positions or thinner plastic that does not retain its shape as well over time, potentially leading to partial detachment and the tyre contact risk that entails.
There is no mechanical reason to replace both sides simultaneously unless both are damaged. Wheelhouse liners fail individually due to localised stone damage, a single heavy impact, or one side being more exposed to road debris based on driving conditions. However, if the liner on one side is noticeably degraded by age and brittleness rather than impact damage, the opposite side is likely in similar condition, and replacing both during the same job avoids a near-term repeat.
The most audible sign is an increase in tyre noise inside the cabin — particularly a hollow, resonant road roar that previously was well suppressed. A partially detached liner produces an intermittent slapping or scraping sound at speed. Visually, look for cracks at the clip mounting points, sections pulling away from the bodywork, or missing retaining clips leaving the panel loose. Any liner that has detached and is touching the tyre needs immediate attention — continuous contact with a rotating tyre will shred the liner and can create a sudden tyre failure in severe cases.
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