Corroded alloy and tyre bead leak refurbishment in
Slough.
If one tyre keeps going soft and the garage keeps inflating it, the wheel rim is corroded and the tyre bead is leaking. We strip, refinish and reseal it properly at our Slough workshop. No more weekly air top-ups. No nonsense. No hidden prices. Book in today.
⭐⭐⭐⭐⭐ 4.9 out of 5 from 500+ Google reviews. Trusted by drivers across Slough since 2019
- ✓6 months interest-free, up to £3,000
- ✓Same-day slots available in Slough
- ✓Bead leak fixed at source
Corroded Alloys Causing Slow Punctures? Fixed in Slough
If one tyre has been going soft every week or two and the local fast-fit keeps telling you they cannot find a puncture, the leak is almost certainly from a corroded alloy bead, not the tyre itself. It is the single most common cause of mystery slow punctures we see at our Slough workshop, especially on cars that have been through a few winters of M4 and M25 salt. Berkshire roads in January are brutal on aluminium rims and the corrosion sits exactly where the tyre needs to seal.
Pumping the tyre up and spraying tyre sealant in is a workaround, not a fix. The seal needs to be cut back to clean aluminium, sealed properly and the tyre remounted on a clean bead. Done right, it never leaks again. Done wrong, you are back in two months. If the leak turns out to be a hairline crack rather than corrosion, that's an alloy crack welding job - same workshop, same visit. New tyre while it's off? Car tyres fitted here too.
How we know it is a bead leak and not a puncture
- Submersion test. wheel and tyre off the car, submerged. Bubbles at the rim edge, not from the tyre, confirms bead leak.
- Visual inspection. we lift the tyre bead and inspect. White or grey oxidation on the inner rim is corrosion.
- Tread inspection. rules out screws, nails and sidewall damage at the same time so nothing is missed.
- Valve check. perished rubber valves are a separate leak source. We replace as standard.
How we actually fix it
- Tyre off. carefully, no bead damage. Mobile tyre fitters often make this worse, not better.
- Corrosion stripped. back to bare clean aluminium with the right abrasive, not a wire brush which embeds steel particles and accelerates further corrosion.
- Bead sealed. with the correct bead sealant where the inner rim was pitted.
- Inner rim coated. to stop the corrosion coming back. The bit fast-fits skip.
- Outer cosmetic refurb. if the outer face is also corroded or kerbed, we refinish at the same time and you save the labour.
- New valve, balance, TPMS reset. as standard.
Cars we see this on most often
- BMW 1, 3 and 5 Series 18in and 19in. M Sport alloys are particularly prone, lacquer fails early on the rim edge.
- Mini Cooper, Countryman and Clubman. narrow profile tyres, easy to develop rim corrosion.
- Audi A3, A4 and Q3. diamond cut wheels where the lacquer has lifted.
- Mercedes A-Class and C-Class. AMG line diamond cut, similar lacquer failure pattern.
- Range Rover Evoque. 22in, salt and pothole damage common.
- Ford Focus, Kuga and Mondeo. older sets, simple corrosion fix.
- Older VW Golf, Polo and Passat. 10 year old wheels, lots of life left if resealed properly.
If you want it done once
A bead reseal is a small job and we can usually do it same day. But if the rim is corroded badly enough to leak, the lacquer has already failed on the outer face too, even if it does not look bad yet. The honest call is to do the full rim refurb at the same time so you are not back in six months. We will give you both options on the quote and let you decide. Plenty of Slough customers do the leaking wheel first and book the other three in once they see the result.
Where we are and who we cover
We fix bead leaks and corroded alloys for drivers across Slough, Langley, Colnbrook, Datchet, Windsor, Maidenhead, Burnham and Iver, and a fair amount of Heathrow-corridor and wider Berkshire fleet work too. The workshop is SL3 7EW, five minutes from M4 J5 and six from M25 J14.
Got a tyre that keeps going soft and nobody can find a puncture? Call 01753 439115 or WhatsApp the team at Onyx Autocentre on 07393 580281 with the reg and which corner is leaking, and we will book you in for a proper fix. 01753 439115 or WhatsApp 07393 580281.
More on alloy wheel refurbishment: Proper Diamond Cut Alloy Refurbishment in Slough · Kerb Damage on One Wheel? We Fix It in Slough · Change the Colour of Your Whole Alloy Set in Slough · Big Range Rover Alloys Need a Specialist. Here's Why · Back to Alloy Wheel Refurbishment
Corroded Alloys Causing Slow Punctures? Fixed in Slough in Slough and across Berkshire
Onyx Autocentre is based in Slough, Berkshire and we look after cars from across the SL postcodes every day. Whether you're driving in from central Slough, Colnbrookor Windsor, we'll book your corroded alloys causing slow punctures? fixed in slough around your schedule. Same Slough workshop, same trusted team, same standard on every corroded alloys causing slow punctures? fixed in slough job.
All our services
Every service we offer at our Slough workshop. Tap a tile to find out more.
- Air Bag RepairsFind out more
- Alloy Wheel Crack WeldingFind out more
- Alloy Wheel RefurbishmentFind out more
- Alloy Wheel WeldingFind out more
- Auto ElectricsFind out more
- Body Kit FittingFind out more
- Boost Leak & Smoke TestFind out more
- CambeltsFind out more
- Car Air ConditioningFind out more
- Car BatteriesFind out more
- Car BrakesFind out more
- Car ExhaustsFind out more
- Car ModificationsFind out more
- Car RepairsFind out more
- Car Safety ChecksFind out more
- Car ServicingFind out more
- Car TyresFind out more
- Carbon CleaningFind out more
- Cheap Car TyresFind out more
- Clutch ReplacementFind out more
- Diesel Performance ECU TuningFind out more
- Diesel TuningFind out more
- Dyno TestingFind out more
- ECU RemappingFind out more
- Engine DiagnosticsFind out more
- Engine ManagementFind out more
- Engine RebuildsFind out more
- Engine TuningFind out more
- Fleet MaintenanceFind out more
- Gearbox ServicingFind out more
- Gearbox TCU RemappingFind out more
- Haldex ServicingFind out more
- Head Gasket RepairsFind out more
- In-Car EntertainmentFind out more
- Mechanical RepairsFind out more
- MOT Failure RepairFind out more
- Nitrogen Oxide (NOx) Sensor RepairsFind out more
- Number PlatesFind out more
- Oil & Filter ChangeFind out more
- Parking SensorsFind out more
- Powder Coating for Alloy WheelsFind out more
- SteeringFind out more
- SuspensionFind out more
- Timing Belt ReplacementFind out more
- Trade Alloy Wheel RepairFind out more
- Turbo Intake CleaningFind out more
- Van Repairs & ServicingFind out more
- Vehicle SecurityFind out more
- Wet Belt ReplacementFind out more
- Wheel BalancingFind out more
- Window TintingFind out more
What Our Customers Say
Rated 5 Stars on Google by drivers across Slough and Berkshire
"Took my BMW here for an oil change and oil filter and the service was spot on. Really friendly team, got the car booked in quickly and the job was done properly with no hassle."
"Highly recommend this garage. After contacting a few other garages who didn't want to take my car in for diagnostics, these guys were happy to help. They diagnosed and fixed an engine fuel leak issue professionally and efficiently. Great service and very reliable. I'll definitely use them again."
"Very nice experience at Onyx — they took me in immediately and completed the DRL module swap efficiently. I have no regrets and would highly recommend."
"I brought my car to Onyx after visiting many other mechanics who failed to sort out issues with my vehicle. The mechanics here clearly explained the issues with the vehicle and fixed them quickly. Amazing service and wonderful people, highly recommend."
"These guys are always polite and welcoming. I've taken multiple vehicles here and the service received has been excellent."
"Had the front pads done here over the weekend. Second time in with Onyx and service has been top notch both times. On time, no hassle and cost effective. Highly recommend."
"Max and Ben are extremely professional and did an excellent repair on my wife's car at a great price. Max spotted the problem within 6 hours, which 2 other garages could not detect."
"I took my car to Onyx and met Ben who was friendly and I got the problem diagnosed by Ben which I had a faulty water pump. I was quoted a reasonable price and got it replaced. I was satisfied and would recommend Onyx."
"Great service, sorted out my alloy refurb at a good price and quick turnaround. Top service, highly recommend."
"A great experience with Onyx who fitted a new clutch for my Fiat 500. Super quick, friendly and well priced. Would highly recommend."
"Very friendly, no hassle effective service. Definitely recommend and will use when I need to get my alloy wheels refurbished."
"Brought my Audi S3 in for a coolant leak — the part was on back order but they managed to source one in a couple of days. Massive thanks to Ben."
"My vehicle went in for a brakes job and Ben and the team at Onyx Autocentre did an amazing job. Highly recommended."
Spread the cost over 6 months, interest-free.
Big bill? Pay the first instalment when you book, then spread the rest across up to 5 more monthly instalments, interest-free. Available on jobs up to £3,000. No setup fees, no hidden interest. FCA-authorised through Payment Assist, soft credit check, decision in minutes.
- ✓ Up to 6 months interest-free
- ✓ Available on jobs up to £3,000
- ✓ First payment at booking, rest split monthly
- ✓ Soft credit check, decision in under 2 minutes
- ✓ No setup fees, no hidden interest
Same-day slots are limited this week.
Call or WhatsApp now and get corroded alloys causing slow punctures? fixed in slough today. Slough, Langley, Colnbrook, Windsor, Maidenhead, Uxbridge and Gerrards Cross.