SEAT Mileage Blocker Installation Service

Maintain accurate mileage tracking on your SEAT vehicle during dyno testing, track days, or off-road events with our professional mileage blocker installation service in Slough. We specialise in Ibiza, Leon, Arona, Ateca, and Tarraco models, providing precise, model-specific installations.

A mileage blocker temporarily pauses your car’s odometer, ensuring that extra miles are not recorded during testing or off-road use. These modules are designed strictly for off-road and testing purposes, and while our installations are performed to the highest standard, we do not guarantee that they are undetectable.

Our Slough-based team delivers safe, efficient installations, helping SEAT owners protect vehicle value and performance data while using a mileage blocker. You can rely on our discreet, professional service for your SEAT vehicle.

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.

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Book Your SEAT Mileage Blocker Installation in Slough

Ensure your odometer remains accurate during dyno runs, track sessions, or off-road testing. Our technicians offer fast, fully tested installations for all SEAT models. Protect your vehicle’s performance and integrity with our trusted Slough service.

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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 temporarily pauses your SEAT’s odometer while performing dyno testing or track/off-road activities, preventing additional miles from being logged.

Will installing a mileage blocker affect my warranty?

When used for off-road or testing purposes, mileage blockers generally do not affect manufacturer warranties.

Are mileage blockers detectable?

We cannot guarantee they are undetectable. Modules are intended for off-road and testing use only.

How is a mileage blocker installed?

Our Slough technicians provide a plug-and-play installation, ensuring your SEAT’s electronics remain fully functional and safe.

Can the module be switched on and off?

Yes — most mileage blockers allow manual activation/deactivation, giving control during dyno or off-road use.

Why use a mileage blocker during dyno runs?

It prevents unnecessary miles from being logged, ensuring accurate performance data.

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