Mobile Vehicle Programming – On-Site Service Across London, Kent and South East

About Us

Rob James Tunings was established in 2012 by Robert James, bringing with him an impressive 14 years of hands-on expertise in mobile vehicle diagnostics and repair. Throughout his extensive career, Robert has built a reputation for reliability and technical excellence, working across an incredibly diverse range of vehicles—from compact city cars to robust commercial vans and rugged 4x4s.

What truly sets Rob James Tunings apart is the comprehensive, customer-first approach to vehicle care. Whether you're stranded roadside with an unexpected breakdown, facing a frustrating non-start situation at home, or simply need expert diagnostics and repairs at a location that suits you, Rob James Tunings has you covered. The mobile service eliminates the stress and inconvenience of towing or arranging transportation to a garage, bringing professional-grade mechanical expertise directly to your doorstep or roadside location.

With over a decade of real-world problem-solving experience, Robert understands that vehicle issues don't wait for convenient moments—that's why Rob James Tunings offers flexible, reliable, and expert mobile mechanical services designed around your schedule and needs.

Trust in proven experience, comprehensive vehicle knowledge, and a commitment to getting you back on the road quickly and safely.

Ghost Immobilisers & Trackers

Don't let your valuable vehicle become another theft statistic. Protect your investment with our state-of-the-art ghost immobiliser system, offering undetectable protection that thieves simply cannot bypass.

This cutting-edge security solution requires a personalised PIN sequence to start your engine or engage the gearbox, ensuring only you can drive your vehicle. Our ghost immobilisers are both insurance and TESSA approved, giving you complete peace of mind and potential insurance discounts.

Unlike traditional alarms and steering locks that can be defeated in minutes, the ghost immobiliser is completely invisible to criminals—they won't even know it's there until it's too late. Give yourself the ultimate layer of protection and sleep soundly knowing your vehicle is secured by technology trusted by thousands of drivers.

Contact us today to safeguard your vehicle with a ghost immobiliser installation.

Ghost Immobilisers & Trackers

Remapping

Ready to transform your driving experience? Our professional remap and tuning services unlock your engine's full potential by removing factory restrictions that hold your vehicle back.

Whether you're looking for Stage 1 or Stage 2 tunes, we deliver noticeable improvements in acceleration and torque that make every journey more exciting. But it's not just about power  — our eco mode tuning actually improves fuel consumption, saving you money at the pump while boosting performance.

Want that sporty exhaust note? We offer pops and bangs mapping for an aggressive sound that turns heads. We also provide swirl flap delete and additional modifications tailored to your specific needs and driving style. Stop settling for the performance the manufacturer decided was "good enough" and discover what your vehicle was truly built to do.

Book your remap today and feel the difference from the moment you press the accelerator.

Remapping

Mileage Correction

Has your vehicle's mileage been incorrectly recorded due to dashboard replacements, faulty clusters, or administrative errors? Don't let inaccurate mileage readings devalue your vehicle or create complications when it's time to sell.

Our professional mileage correction service restores your odometer to reflect the genuine, accurate mileage, ensuring your vehicle's history is properly documented and transparent. Whether you've had a instrument cluster replacement, imported a vehicle with kilometres instead of miles, or experienced electronic faults that corrupted your mileage data, we provide a legitimate solution that protects your investment.

We operate with complete transparency and in full compliance with legal requirements, providing documentation to support any corrections made. Your vehicle's true history matters—for resale value, insurance accuracy, and peace of mind.

Contact us today to discuss your mileage correction needs and ensure your vehicle's records reflect reality.

Milage Correction

ECU Repairs

Is your engine management light constantly on? Experiencing poor performance, starting issues, or unexplained running problems? Our specialist ECU (Engine Control Unit) services deliver comprehensive fault finding and diagnostics to identify exactly what's affecting your vehicle's brain.

We go beyond basic code readers—we decode complex fault codes, analyse live data, and provide expert repairs, reprogramming, and replacement services that restore your vehicle's performance. Whether it's ECU failures, ABS module issues, TCU (Transmission Control Unit) problems, or faulty instrument clusters, our advanced diagnostic technology and technical expertise solve the problems other garages can't.

Don't let ECU faults leave you stranded or facing expensive dealership bills. Modern engines rely entirely on their ECU to function correctly, and when it fails, you need specialists who understand the intricate electronics and can repair or replace units cost-effectively.

Stop living with warning lights and compromised performance—contact us today for professional ECU diagnostics and repairs that get your vehicle running perfectly again.

ECU Repairs

AdBlue, DPF, EGR RESETS

Tired of costly AdBlue system failures draining your wallet? Facing expensive dealership quotes for module replacements and programming?

Our specialist AdBlue reset services solve common system faults quickly and affordably, eliminating those frustrating warning messages and preventing your vehicle from entering limp mode.

Beyond AdBlue, we offer comprehensive module programming, configurations, and adaptations for all vehicle systems—whether you've replaced a module, need software updates, or require complex system reconfigurations after repairs. Modern vehicles require precise electronic communication between modules, and when something's replaced or goes wrong, proper programming is essential.

Don't settle for "plug and play"—our advanced diagnostic equipment and technical expertise ensure every module is correctly programmed, configured, and adapted to work seamlessly with your vehicle. We handle everything from immobiliser coding to complex multi-module adaptations that dealerships charge premium prices for.

Save money, avoid downtime, and get expert electronic solutions—contact us today for professional AdBlue resets and all your module programming needs.

AdBlue, DPF, EGR RESET

Speed Limit Removal

Is your vehicle electronically restricted and unable to reach its true top speed potential? Factory-imposed speed limiters hold back your vehicle's performance, often for no reason other than market positioning or arbitrary regulations.

Our professional speed limit removal service eliminates these electronic restrictions, allowing your vehicle to achieve the performance it was engineered to deliver. Whether you're taking your vehicle to track days, driving in derestricted zones, or simply want access to your engine's full capabilities, we can safely remove speed governors and limiters without compromising reliability or safety systems.

German manufacturers are particularly known for limiting vehicles well below their mechanical capabilities—why should you pay for performance you can't access? Our expert technicians reprogram your ECU to remove these artificial barriers, giving you the freedom to experience what your vehicle can truly do.

Stop being held back by unnecessary restrictions—contact us today to unlock your vehicle's complete performance potential with professional speed limit removal.

Speed Limit Removal

SOFTWARE UPDATES

Is your vehicle suffering from outdated software causing performance issues, glitches, or annoying faults? Just like your smartphone or computer, your car's systems need regular software updates to function optimally.

Our professional car software update service ensures all your vehicle's modules are running the latest manufacturer software, eliminating known bugs, improving performance, and resolving those irritating intermittent problems that seem to have no cause. Whether you're experiencing transmission hesitation, infotainment system freezes, or mysterious warning lights that come and go, outdated software could be the culprit.

Don't pay dealership prices for simple software updates—we provide the same official updates at a fraction of the cost, using professional-grade diagnostic equipment. Modern vehicles receive continuous software improvements from manufacturers, but most owners never benefit because they don't know updates are available.

Stay ahead of problems, improve reliability, and ensure your vehicle performs exactly as it should—contact us today for comprehensive car software updates that keep your vehicle current and running flawlessly.

SOFTWARE UPDATES

What people say about us?

Don't just take it from us

Jade Neave

Don't go anywhere else! This guy is a legend he saved us by repairing our work van, squeezing us in on a Saturday last minute . Very quick diagnosis, went and got the part and our van is back on the road within hours. Polite and a pleasure to deal with. THANK YOU ROB! Will be recommending you highly to anyone who needs a mechanic! ⭐⭐⭐⭐⭐

Tiffy Younge

I was very hesitant as I have been let down by a few mechanics but Rob came and restored my confidence in mechanics my ford focus was sitting for a few days Rob came got it up and running again and gave the relevant advice with no pressure might I ad he is very friendly ,knowledgeable and professional . I will continue to use him from now on . All the best Tiffany

Kelly Holyoake

Had an issue with a non starter. RJ Mechanical came out within an hour of me contacting him. Found fault, went out of his way to get parts and came back to fit them. Saved me a 4am Monday bus and train ride to work. Would definitely recommend. Fabulous communication and customer service. I’d have given more than 5* if I could.

FAQ