Alloy wheels take a beating in Dubai. Tight parking spaces, high kerbs at malls and office buildings, and rough road surfaces in industrial areas all contribute to damage that ranges from cosmetic scratches to structural issues. Knowing what type of damage you have determines the correct repair method and cost.
Here are the five most common types of alloy wheel damage we see at our Al Quoz workshop, how to identify each one, and what it takes to fix them.
1. Kerb Rash
Kerb rash is the most common wheel damage by a wide margin. It is the scraped, rough surface you see on the outer edge of the wheel where it has contacted a kerb or parking barrier. The damage ranges from light surface grazing to deep gouges that remove material from the alloy.
What it looks like: rough, scraped areas along the outer rim edge. On painted wheels, the paint is stripped to reveal raw alloy underneath. On machined or polished wheels, the smooth finish is replaced by a rough, scratched surface. The damage is usually concentrated on one side of the wheel (the side that hit the kerb).
Causes: parallel parking misjudgement is the number one cause. Dubai's yellow-painted kerbs are higher than kerbs in many other countries, making contact more likely. Roundabout exits with tight left turns also catch the nearside wheels regularly.
Repair method: the damaged area is sanded smooth, filled with specialist alloy filler for any gouges, primed, and refinished to match the rest of the wheel. For painted wheels, this means colour-matched paint and clear coat. For diamond-cut wheels, the entire wheel face is machined on a CNC lathe to restore the factory finish.
Cost: AED 250 per wheel for painted alloy repair. AED 450 per wheel for diamond-cut repair. Most wheels are completed in 1 working day.
Prevention: take wide approaches to parallel parking. Use your mirrors to judge kerb distance rather than relying on feel. If your car has a parking camera, use the overhead view to check wheel clearance.
2. Corrosion and Brake Dust Pitting
Corrosion appears as small pitted areas or discolouration on the wheel surface. In Dubai, this is accelerated by extreme heat, salt in the air (especially near the coast), and accumulated brake dust that is not cleaned regularly.
What it looks like: tiny pits or bubbles in the wheel surface, often around the area behind the spokes where brake dust accumulates. On clearcoated wheels, you might see the clearcoat lifting or bubbling. On bare machined wheels, corrosion appears as dark spots or rough patches that do not clean off.
Causes: brake dust is a fine metallic powder that bakes onto the wheel surface in Dubai's heat. If left for weeks or months, it chemically bonds with the alloy and creates pitting. Road salt from coastal areas accelerates the process. Cheap or damaged clearcoat on the wheel allows moisture to reach the alloy underneath.
Repair method: the wheel is chemically stripped of all existing finish, then the corroded areas are sanded until clean alloy is reached. Deep pitting is filled with alloy-specific filler. The wheel is then primed and refinished completely. For diamond-cut wheels, the machining process removes the top layer of corroded alloy to reveal clean metal underneath.
Cost: AED 300 to AED 500 per wheel depending on severity. Heavily corroded wheels where the structural integrity is compromised may need replacement rather than repair. We will tell you if that is the case.
Prevention: clean your wheels every 2 weeks minimum, more often if you drive aggressively or have high-performance brake pads that generate more dust. Use a pH-neutral wheel cleaner rather than acid-based cleaners that strip the protective coating.
3. Bent Rim
A bent rim means the circular shape of the wheel has been deformed, typically from impact with a pothole, speed bump, or kerb at speed. The wheel is no longer perfectly round, which affects tyre seating and vehicle dynamics.
What it looks like: you might not see the bend visually unless it is severe. The symptoms are what give it away: vibration through the steering wheel at highway speed (60 to 120 km/h), a visible wobble when you spin the wheel on a jack, or the tyre losing air pressure gradually because the bead seal is compromised.
Causes: hitting a pothole at speed is the most common cause in Dubai. The industrial areas in Al Quoz, some stretches of Emirates Road, and newly developing areas often have road surface damage that can bend a rim. Speed bumps taken too fast, especially in residential communities, are another frequent cause. Running a deflated tyre even briefly can also deform the rim.
Repair method: the wheel is mounted on a hydraulic press with a dial indicator measuring runout (deviation from perfect round) at multiple points. The technician applies controlled pressure to bend the rim back into specification. Before and after measurements confirm the wheel is within manufacturer tolerance (typically 0.5mm or less of runout).
Cost: AED 200 to AED 400 per wheel. Severe bends that have cracked the alloy at the bend point cannot be safely repaired and require wheel replacement.
Prevention: avoid potholes where possible. Reduce speed over speed bumps. Maintain correct tyre pressure, as underinflated tyres transmit more impact force to the rim. If you feel a hard impact, have the wheel checked before a minor bend becomes a crack.
4. Cracked Alloy
A cracked alloy wheel has a fracture in the metal itself. This is a structural issue that affects the wheel's ability to safely bear load and contain tyre pressure. Cracks are the most serious type of wheel damage.
What it looks like: a visible hairline crack or fracture in the alloy, typically on the inner lip, around a spoke root, or at a point where the rim meets a spoke. Some cracks are visible externally. Others are only visible when the tyre is removed and the wheel is inspected from the inside.
Causes: severe pothole impact, hitting a kerb at speed, or a hard impact during an accident. Cracks can also develop gradually from a pre-existing bend that creates a stress point. Repeated impact at the same spot (such as a persistent kerb contact) weakens the alloy over time.
Repair method: small cracks in non-structural areas of the rim can sometimes be TIG welded by a specialist, then machined smooth. The weld area is stress-tested before the wheel goes back into service. Cracks at spoke roots or through structural areas of the wheel cannot be safely repaired.
Cost: AED 400 to AED 800 for repairable cracks. Wheels with structural cracks need replacement, which varies from AED 500 for standard alloys to AED 3,000+ for OEM luxury wheels.
Prevention: the same measures as bent rim prevention. Avoid potholes, maintain tyre pressure, and address bent rims promptly before they develop into cracks. If you hear a metallic "ping" during a hard impact, have the wheel inspected immediately.
Important safety note: never continue driving on a cracked wheel. A crack can propagate rapidly, especially at highway speed, leading to sudden tyre deflation or wheel failure. If you suspect a crack, have the wheel inspected before driving further.
5. Diamond Cut Damage
Diamond cut (also called diamond turned) wheels have a factory finish where the wheel face is machined on a CNC lathe to create a polished, reflective surface with visible machining lines. This finish is standard on many Mercedes, BMW, Audi, and Range Rover models. It looks distinctive and premium, but it is more susceptible to damage and more expensive to repair than standard painted alloys.
What it looks like: any damage to the machined face of the wheel, whether from kerb contact, corrosion, or chemical damage. The machined finish cannot be touched up with paint because the surface is bare alloy with only a thin lacquer coating. Any scratch, gouge, or corroded spot is immediately visible and cannot be disguised.
Causes: the same causes as kerb rash and corrosion, but the damage is more visually obvious on a diamond-cut finish. Acid-based wheel cleaners are particularly damaging to diamond-cut lacquer. Some car washes use aggressive chemicals that strip the protective coating, leading to corrosion within months.
Repair method: the only proper repair is to re-machine the entire wheel face on a CNC lathe. This removes a thin layer of alloy (typically 0.2 to 0.5mm) from the entire face, creating a fresh machined surface. The wheel is then lacquered with a clear coat for protection. This can only be done a limited number of times before the wheel walls become too thin.
Cost: AED 450 per wheel. A set of four is AED 1,800. Turnaround is 3 to 4 working days for a set of four.
Prevention: use only pH-neutral wheel cleaners. Avoid automatic car washes that use acidic chemicals. Apply a wheel-specific ceramic coating after repair to add a protective layer over the lacquer. And be extra careful with kerb distance since even minor contact on diamond-cut edges is highly visible.
When to Repair vs When to Replace
Cosmetic damage (kerb rash, corrosion, diamond-cut scratches) is always repairable unless the wheel has been machined too many times and the walls are below minimum thickness. Our technician measures wall thickness before starting any diamond-cut repair.
Minor bends are repairable if the alloy has not cracked at the bend point. After straightening, we run a dial indicator test and a spin balance check to verify the wheel is within specification.
Cracks in non-structural areas may be repairable by TIG welding, but this is assessed on a case-by-case basis. We will not weld a crack that we are not confident will hold.
Cracks in structural areas (spoke roots, mounting face, bead seat) are not repairable. The wheel needs to be replaced. Attempting to repair a structural crack puts you at risk of wheel failure at speed.
When a wheel needs replacement, we can source OEM-spec replacements for most major brands. Single replacement wheels are available so you do not need to buy a full set of four.