Car Mechanic in Slough

Car Mechanic in Slough – Expert Car Repairs & Servicing

Car Mechanic in Slough

Are you searching for a trusted car mechanic in Slough? At Onyx Performance, we specialise in car repairs, servicing, diagnostics, and performance upgrades for all makes and models. Our experienced team provides affordable, high-quality vehicle repairs to keep your car running smoothly and efficiently.

We serve customers in Slough, Windsor, Maidenhead, and surrounding areas, offering professional car servicing, brake repairs, suspension work, tyres, wheel refurbishment, number plates, and more. Whether you need a full service, new brakes, or an engine diagnostic check, our expert mechanics in Slough are here to help.

Car Servicing in Slough – Full, Interim & Engine Maintenance

Regular car servicing is essential to keep your vehicle running at its best. At Onyx Performance, we provide interim, full, and major servicing to ensure your car is safe, reliable, and performing efficiently.

Our car servicing in Slough includes:

– Oil & Filter Changes – Essential for engine longevity and performance.
– Brake Fluid Replacement – Ensures responsive braking and safety.
– Air & Cabin Filter Replacement – Improves air quality and engine efficiency.
– Spark Plug & Fuel System Checks – Ensures smooth engine operation.
– Coolant System Flush & Top-Up – Prevents overheating and engine damage.
– Timing Belt & Chain Inspection – Crucial for preventing major engine failure.

Whether you drive a petrol, diesel, hybrid, or performance vehicle, our qualified car mechanics in Slough have the knowledge and expertise to keep your car in top condition.

Car Repairs in Slough – Affordable & Reliable Service

If your car is making unusual noises, displaying warning lights, or not running as it should, our expert car repair services in Slough can quickly identify and fix the issue. Our car repair services include:

Brake Repairs & Replacement

We fit high-quality brake pads and discs.

Suspension Repairs & Upgrades

Shock absorbers, coil springs, and bushings.

Clutch & Gearbox Repairs

Manual and automatic gearbox servicing.

Cooling System Repairs

Radiator, thermostat, and water pump maintenance.

Exhaust Repairs & Upgrades

Exhaust system fixes and performance upgrades.

Battery & Electrical Diagnostics

Battery replacement, alternators, and wiring faults.

Wheel Refurbishment, Number Plates & Tyres in Slough

Alongside mechanical repairs and servicing, we also offer:

– Wheel Refurbishment – Alloy wheel repairs for curb damage, scratches, and corrosion.
– Number Plates – Custom or replacement plates available in legal formats.
– Premium & Budget Tyres – Supply and fitting of high-performance or affordable tyres.
– Wheel Balancing & Alignment – Improves tyre longevity and driving stability.

We stock leading tyre brands for all vehicle types and budgets. If you need new tyres in Slough, our team can supply and fit them quickly and professionally.

Customer Reviews

    
 
 
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   Mark Wiltshire 
 
 
 
 Trustindex verifies that the original source of the review is Google. Professional yet friendly, very helpful would recommend 👍
  
 
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   Paul Forrester 
 
 
 
 Trustindex verifies that the original source of the review is Google. Nice refurbishment of my alloys
  
 
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   Noel Kerins 
 
 
 
 Trustindex verifies that the original source of the review is Google. Excellent service, great quality job on 2 of my black alloys. They also did my father & husbands cars too. Great value for money and a special thanks to Ben.
  
 
      Posted on Google  
   
   Jamie Taylor 
 
 
 
 Trustindex verifies that the original source of the review is Google. Had my golf R mapped and tuned to stage 2 very impressed with the work they done Ben and Sam great guys very friendly and very professional would recommend 👍🏻
  
 
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   DSK 
 
 
 
 Trustindex verifies that the original source of the review is Google. Brought my Audi S3 in for a Stage 3 tune with a bigger turbo and full supporting mods. Things didn’t start smoothly — the Falcon turbo I had fitted from eBay turned out to be faulty and smoked heavily on the dyno.Instead of rushing the job or giving me attitude, they helped me swap it out for a proper Garrett PowerMax and carried on professionally. Then I ran into fueling problems caused by another low‑quality eBay part, and again they took their time, diagnosed the issue properly, fixed it, and made sure everything was right before continuing.After all the setbacks, they still mapped the car, spent a lot of time on it, and didn’t charge me anywhere near what the work was worth.They showed patience, honesty, and real skill. Very happy with the service and the way they looked after me.
  
 
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   randip 
 
 
 
 Trustindex verifies that the original source of the review is Google. Highly recommended. Fitted my catless downpipe and full exhaust on my Audi RS7. The sound is amazing!

The staff were very friendly and kept me updated at every step of the process
  
 
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   Dan Simmonds 
 
 
 
 Trustindex verifies that the original source of the review is Google. This is the second time I have used Onyx Performance first time for wheel refurbishment and last time for remap and i would use their services again in the future without a doubt. They are very knowledgeable about what they specialise in, they are polite and you can see they care not only about what their customers want to do but also about what they can offer the customer. Thanks to the OP team.
  
 
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   Taranjit Lehal 
 
 
 
 Trustindex verifies that the original source of the review is Google. Took my Mercedes C200 to Onyx performance for a stage 1 remap, my car is much quicker and throttle response is much better than before the remap. They also advise you about power and gains and the maps are tailored for your specific car and model, no stress on engine or gearbox. Thank Onyx , Brilliant work.
  
 
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   Carlos fernandez 
 
 
 
 Trustindex verifies that the original source of the review is Google. Absolutely fantastic service friendly customer service will definitely be going back for further modifications 5 star service do not go anywhere else other than onyx😎🙏🏼
  
 
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   Aurimas Gercas 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great service, recommend.

The Leading Car Mechanic in Slough

For expert car repairs, servicing, and maintenance in Slough, contact Onyx Performance today. Our highly skilled mechanics are here to help keep your car performing at its best. Book your appointment today with Onyx Performance – the number one car mechanic in Slough!

5-Star Google Reviews

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Why Choose us as Your Car Mechanic in Slough?

Whether your car needs a full service, brake replacement, or engine diagnostic, we are your go-to car mechanic in Slough for reliable, professional service.

Experienced & Skilled Mechanics

Over a decade of experience working on all makes and models.

High-Quality Parts & Materials

We use only the best components for reliability and safety.

State-of-the-Art Equipment

Advanced diagnostics and repair technology.

Competitive Pricing

Affordable car repairs with no hidden costs.

Local & Trusted Service

Serving Slough, Windsor, Maidenhead, and surrounding areas.

Fast Turnaround

Most repairs and servicing are completed the same day.

Frequently Asked Questions

Where in Slough are you based?

Our workshop is conveniently located in Slough, with easy access from Langley, Cippenham, Colnbrook, and Windsor. We’re just a short drive from the A4 Bath Road and M4.

Do you provide both car servicing and repairs?

Yes – we cover everything from interim and full servicing to MOT preparation, diagnostics, and mechanical repairs. Our Slough garage is set up for all makes and models.

Can you work on performance and modified cars?

Absolutely. Onyx Performance is known for working on high-performance, tuned, and modified vehicles as well as standard cars.

Do you offer same-day repairs in Slough?

Yes, where possible. If we have the necessary parts in stock, we can often complete same-day repairs. For larger jobs, we’ll give you a clear timescale from the start.

Can you diagnose dashboard warning lights?

Yes – our Slough mechanics use advanced diagnostic tools to quickly find and fix the issue behind any warning lights.

Get a quick quote

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