BMW Mileage Blocker Installation Service

Looking to manage mileage recording on your BMW during dyno runs, track days, or off-road testing? Our Slough-based workshop offers expert installation of BMW-specific mileage blockers, ensuring a clean, discreet, and reliable fit. Our technicians handle every installation with precision, keeping your vehicle’s core systems intact while integrating the module safely.

Whether you drive a M Series, 3 Series, 5 Series, X5, or i8, our service is designed to prevent unnecessary mileage logging during testing or motorsport activities. Using a plug-and-play installation approach where possible, we deliver a solution tailored to your specific BMW model, ideal for performance enthusiasts, track-day drivers, and off-road testing.

All installations are performed with care and professionalism at our Slough workshop, giving you confidence that your BMW is handled by specialists in performance and luxury vehicles. Our team provides guidance on correct usage for off-road and testing scenarios, ensuring your mileage blocker functions effectively while staying within intended legal guidelines.

Why Choose Onyx Performance?

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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 BMW Mileage Blocker Installation in Slough

Keep your BMW’s mileage from being recorded during dyno runs, track days, or off-road activities with our professional installation service. Our brand-specific mileage blocker modules are installed by trained technicians at our Slough workshop, ensuring a safe, discreet, and tailored solution for your BMW. Full guidance on off-road and testing use is provided.

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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 is a mileage blocker?

A mileage blocker is a module that prevents your BMW from recording mileage on the dashboard and ECU while driving.

Why use a mileage blocker on a BMW?

Primarily for dyno testing, track days, or off-road events, where additional mileage logging is unnecessary.

How is a mileage blocker installed?

Installation is professional and discreet, usually via a plug-and-play connection without permanent modifications.

Do you provide a warranty or guarantee?

No — mileage blockers are supplied without any guarantees, intended solely for off-road and testing use.

Which BMW models are supported?

We provide installation for a wide range of BMWs, including M Series, 3 Series, 5 Series, X5, and i8.

Can the mileage blocker be switched on and off?

Yes — most modules include an on/off function, giving full control when required.

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