Automatic Gearbox Servicing and Fluid Flush in Langley, Slough

Automatic Gearbox Servicing and Fluid Flush

A smoothly running automatic gearbox relies on clean, high-quality transmission fluid and regular maintenance. At Onyx Performance in Langley, Slough, our automatic gearbox servicing and fluid flush ensures your transmission operates efficiently, reducing wear and preventing costly repairs.

We perform a complete fluid replacement using manufacturer-approved products, inspect internal components, and check for leaks or worn parts. Our team also tests your gearbox for smooth shifting, responsive gear changes, and overall reliability, keeping your car performing at its best.

Car owners across Slough, Langley, and nearby areas choose Onyx Performance for our expertise, attention to detail, and fast, thorough servicing. Whether it’s routine maintenance or addressing early signs of transmission issues, we keep your automatic gearbox in top condition.

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

Book Your Automatic Gearbox Service in Langley, Slough

Keep your automatic gearbox shifting smoothly with a professional service at Onyx Performance in Langley, Slough. Our fluid flush, component inspection, and maintenance checks ensure reliable performance, longer transmission life, and peace of mind. Schedule your service today to prevent costly repairs and maintain optimum drivability.

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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

How often should I service my automatic gearbox?

Typically every 30,000–50,000 miles, depending on manufacturer guidance and driving conditions, to maintain smooth, reliable operation.

What is a gearbox fluid flush?

A fluid flush replaces old, degraded transmission fluid with fresh, manufacturer-approved fluid, helping prevent wear, overheating, and shifting issues.

Can you service all automatic gearboxes?

Yes – we handle a wide range of vehicles, from everyday cars to high-performance and luxury models.

Will servicing reduce gearbox noise or vibration?

Absolutely – clean fluid and inspected components ensure smoother gear changes and reduce unwanted noise or vibration.

Is your service suitable for warranty requirements?

Yes – we follow manufacturer recommendations, use approved fluids, and maintain records, keeping your warranty intact.

How long does an automatic gearbox service take?

Most fluid flushes and inspections can be completed within a few hours, depending on your vehicle and specific requirements.

Get a quick quote

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