Car Servicing – Interim, Full & Major Car Service Near Me

Car Servicing – Interim, Full & Major Car Service

Car Servicing – Interim, Full & Major Car Service

We provide comprehensive car servicing options that suit every stage of your vehicle’s maintenance cycle – from interim servicing to full and major services. Whether you’re a daily commuter, performance enthusiast, or business fleet owner, our technicians use dealer-grade diagnostics and industry-leading equipment to keep your car running flawlessly.

Our interim service is ideal for drivers covering high mileage or wanting peace of mind between full services. It includes vital checks such as oil and filter change, fluid top-ups, brake inspection, and tyre tread checks. For more extensive maintenance, our full service covers over 60 checks – including air filter replacement, suspension, lights, battery, and more. The major service is our most in-depth option, perfect for annual or manufacturer-scheduled servicing.

We proudly serve customers across Slough and the surrounding areas, offering transparent pricing, top-quality parts, and a performance-focused approach. Whether you drive a standard saloon, SUV, or a tuned performance car, Onyx Performance delivers servicing you can trust – no shortcuts, no guesswork.

Why Choose Onyx Performance?

As Seen on Carwow

We’ve been proudly featured on Carwow – a testament to the quality, professionalism, and performance-focused results that set us apart. Watch our feature here to see us in action.

Expertise You Can Trust

With years of experience and deep technical knowledge, our team understands performance vehicles inside and out – from custom remaps to high-end servicing.

Advanced Workshop & Tools

We operate from a state-of-the-art facility in Slough, equipped with cutting-edge diagnostics, dyno testing, and industry-leading tools for accurate, high-quality work.

Tailored Solutions for Every Vehicle

We don’t believe in one-size-fits-all. Every car gets a bespoke approach, ensuring the best results whether it’s a remap, upgrade, or routine service.

Trusted Nationwide

Performance enthusiasts from across the UK come to Onyx because they know they’ll receive premium-quality workmanship, careful attention to detail, and honest advice.

Complete Care, All in One Place

From tuning and servicing to tyres, trackers, and immobilisers – we offer a full suite of services under one roof, all with a strong focus on safety, reliability, and top-tier customer support.

Customer Reviews

    
 
 
       Posted on Google  
   
   Anil Soni 
 
 
 
 Trustindex verifies that the original source of the review is Google. Thank you guys for your professional, dedicated and honest opinion. You made my day by fixing my son's car so he could use it for DoE at very short notice. Max and Kay were brilliant and I would definitely recommend this garage as a organised and trustworthy business. Keep up the good work.
  
 
      Posted on Google  
   
   subin pradhan 
 
 
 
 Trustindex verifies that the original source of the review is Google. Took my BMW 440i to install downpipe and mid pipe. Top guys with good service and reasonable price. Will be going back for more work done.
  
 
      Posted on Google  
   
   J JareCki 
 
 
 
 Trustindex verifies that the original source of the review is Google. I just done Stage1 in my audi s3, car drive superb, excelent service, thanks Ben,Sam and Onyx team! Brilliant work
  
 
      Posted on Google  
   
   Dan May 
 
 
 
 Trustindex verifies that the original source of the review is Google. Honest and knowledgable! Rare these days - saves me hundreds by checking my Golf R properly. Will only use these guys from now on
  
 
      Posted on Google  
   
   Darren Dawes 
 
 
 
 Trustindex verifies that the original source of the review is Google. I took my jaguar xfr to these guys for a re map . Excellent service. They could not have been more helpful. Very knowledgeable they definitely know what they are doing. If your looking for a re map I would highly recommend you speak to them.
  
 
      Posted on Google  
   
   Hana 
 
 
 
 Trustindex verifies that the original source of the review is Google. I was recommended Onyx to get my diamond-cut alloys refurbished. I am located an hour away but the recommendation was important so decided to leave my car with these guys. First impressions, the team were very polite, friendly (Essan, Ben and the guys that actually did the refurb in the intense heat) The prices were competitive. And the quality of work was super. There was slight miscommunication post the sale (which happens) but I was pleased they resolved this to my satisfaction. One idea I would suggest is advising the customer 'before' the work starts that the TPF valves may need replacing so we have the option to decide whether to do it whilst the wheels are off anyway rather than post refurb to avoid scratching the newly done alloys. Otherwise happy with my overall experience.
  
 
      Posted on Google  
   
   Mark 
 
 
 
 Trustindex verifies that the original source of the review is Google. Amazing service
  
 
      Posted on Google  
   
   pavan khangura 
 
 
 
 Trustindex verifies that the original source of the review is Google. The best experience ever well organised clean friendly team and the experience was amazing A big up to the whole staff.

Book Your Expert Car Service in Slough Today

From interim to full and major servicing, Onyx Performance delivers dealer-quality care with a performance edge. Located in Slough, we service all makes and models using premium parts and precision diagnostics. Book now and experience hassle-free, high-standard car servicing from local experts you can trust.

5-Star Google Reviews

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Why Choose Onyx Performance for Servicing?

Experts in Performance Cars

We know how to properly care for performance, modified, and luxury vehicles. Our team has the skills and experience to handle specialist requirements confidently.

Correct Service Schedules

Every service follows the exact schedule recommended by your vehicle’s manufacturer, helping maintain performance and protect your warranty.

Quality or OEM Parts

We only use high-quality aftermarket or original manufacturer parts, ensuring long-lasting reliability and top-level performance.

Full Vehicle Inspection

Our service goes beyond just changing oil. We inspect all key systems to keep your car safe, smooth, and road-ready.

Honest Advice, No Surprises

With transparent pricing and expert recommendations, you’ll always know what your car needs – no upselling, no hidden fees.

Fast, Trusted & Tracked

We offer quick turnaround, maintain service records, and send reminders – that’s why customers travel to us from across the UK.

Frequently Asked Questions

What’s included in an interim car service at Onyx Performance?

Our interim service includes an oil and filter change, tyre and brake checks, fluid top-ups, lights and battery inspection, and a full health check. It’s ideal for high-mileage drivers or those needing a service between full intervals.

How often should I get a full service for my car?

We recommend a full service every 12 months or 12,000 miles – whichever comes first. It includes more detailed checks such as air filter replacement, suspension checks, and system diagnostics.

What’s the difference between a full and major service?

A major service includes everything in a full service plus additional replacements like cabin filters, brake fluid, and spark plugs (where applicable). It’s typically carried out every 24 months or 24,000 miles.

Do you service performance or modified vehicles?

Absolutely. Onyx Performance specialises in performance and modified cars. We tailor our servicing to your vehicle’s specific setup using advanced diagnostic tools and high-performance parts.

Can I wait while my car is being serviced?

Yes, we offer a comfortable waiting area with Wi-Fi and refreshments. Alternatively, you can drop off your car and we’ll notify you once it’s ready.

Is your car servicing warranty-approved?

Yes, we follow manufacturer specifications and use OE-quality parts, ensuring your warranty remains valid. We also provide full service records for your peace of mind.

Get a quick quote

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