Helpful answers

At SW Remapping and Diagnostic, we believe in open communication, reliable work, and keeping every customer satisfied. Whether you have questions about engine remapping, DPF solutions, or mobile visits across the South West, we are here to provide clear guidance.

Frequently asked questions

Find everything you need to know about our ECU tuning, fault diagnostics, and vehicle remapping services. If your question is not covered below, please get in touch with our friendly family-run team.

Do I have to bring my vehicle to Malmesbury?

Not at all. While we are based in Malmesbury, we offer convenient mobile visits directly to your home or workplace across any location in the South West.

What immediate improvements will I notice after a remap?

Immediately after tuning, your vehicle will be faster, with sharper throttle response, smoother power delivery, and noticeably better fuel economy.

What does ECU remapping involve?

ECU remapping modifies the pre-set software in your car's engine control unit. This unlocks unused performance, improves torque, and enhances driving dynamics safely within engine limits.

How long does a typical remap take?

Most mobile remapping jobs take approximately one to two hours, including initial diagnostic checks, file writing, and final testing.

Do you provide EGR and DPF solutions?

Yes, we offer comprehensive EGR delete, DPF delete, and full diagnostic troubleshooting to resolve recurring warning lights and engine faults.

Will remapping harm my engine?

No, we apply carefully calibrated files tailored to your specific engine and components, keeping mechanical safety, reliability, and longevity as our top priorities.

Why choose a family-run specialist?

As a family-run business, we care deeply about our reputation and customer satisfaction. You receive honest advice, personal attention, and reliable support every time.

What areas in the South West do you cover?

We cover Malmesbury and travel throughout Wiltshire, Gloucestershire, Somerset, and surrounding South West regions to tune your vehicle on-site.

Ready to unlock your vehicle's full potential?

Speak with our friendly specialists today to discuss mobile tuning, diagnostics, or performance upgrades tailored for your car.