BMW engine bay from the SW Car Care vehicle care gallery

Cardiff, Newport, Swansea, Bridgend, the Valleys & the Vale of Glamorgan

Mobile ECU remapping across South Wales

Stage 1 from £265, Stage 2 from £325, across Cardiff, Bridgend, Swansea and Newport. Your original file is always saved, so the car can be put back exactly as it was.

More usable power

Stage 1 maps sharpen throttle response and lift mid-range torque where you actually drive.

Economy options

Discuss your driving and priorities with your technician. Fuel savings are not guaranteed.

Vehicle-specific assessment

Written for your exact engine and gearbox, with the original file always saved.

Fully mobile

Done on your driveway or at work — nothing to drop off, nothing to collect.

Power checker

What will your car make?

Enter your registration below to see the gains for your exact engine. Figures are estimates and confirmed by your technician.

Make

Model

Year

Engine

Pick your make, model, year and engine to see the standard figures next to the estimated Stage 1 figures.

Remapping services

What it costs

Most popular

Stage 1 Remap

£265

About 1 hr 30 min on site

  • Fault-code check before we write anything
  • Map written for your exact engine
  • Original file saved and kept on record
  • Road test before we hand the keys back
Book Stage 1

Stage 2 Remap

£325

About 2 hrs on site

  • Everything in Stage 1
  • Matched to your existing hardware changes
  • Extra verification runs on the road
  • Follow-up adjustment if you need it
Book Stage 2

Gearbox Remap Stage 1

£240

About 1 hr on site

  • Automatic gearboxes only
  • Quicker, smoother gear changes
  • Original gearbox file saved
  • Add to an engine remap for £130
Book Gearbox Stage 1

Gearbox Remap Stage 2

£260

About 1 hr on site

  • Automatic gearboxes only
  • Torque limits raised to suit a tuned engine
  • Firmer, faster shifts under load
  • Add to an engine remap for £130
Book Gearbox Stage 2

Optional calibration features

Availability varies by vehicle, ECU and intended use. Compatibility and pricing are confirmed after vehicle identification; selecting a feature during booking is a request, not confirmation that it is suitable.

AdBlue Solution (off-road/track only)DPF Solution (off-road/track only)DTC DeleteEconomy TuneEGR Solution (off-road/track only)Gearbox remap (automatic)Hard Cut Rev LimiterLaunch ControlPops & BangsSpeed Limiter RemovalStart/Stop Disable

AdBlue, DPF and EGR solutions are offered for off-road and track vehicles only.

Customers are responsible for ensuring modifications comply with applicable road-use, emissions and MOT requirements.

Prices cover the map, the road test and the saved original file. Performance figures shown are estimated gains for a healthy vehicle. Actual results can vary depending on vehicle condition, specification, fuel quality and modifications.

How it works

Four steps, one visit

1

Check your figures

Put your registration or your make, model and engine into the power checker to see the estimated gains.

2

Request your dates

Send 3–5 preferred dates and periods. Your request stays pending until your technician confirms an exact appointment time.

3

We come to you

We carry out diagnostic checks, safely read and save the original ECU software, then program the vehicle using the appropriate OBD, bench or boot method for the ECU fitted.

4

Road test and hand back

A short road test confirms everything is right, then the keys come straight back to you.

Why us

Done properly, or not at all

  • Original file saved before anything is written
  • Fault codes read first — we won't map over a problem
  • Fixed prices published up front, no hard sell
  • One diary for valeting, smart repairs and remapping
  • Fully mobile across the CF, NP and SA postcodes
  • Compatibility and working location checked before programming

Published customer feedback

Read the experience behind the service

Explore genuine published reviews, with the relevant service shown where recorded.

Read the reviews

Coverage

Where we remap

We assess addresses across CF, NP and SA. Choose your town for local information; your exact address and appointment are confirmed by the technician.

FAQs

Remapping questions

Road use and compatibility

Vehicle-specific advice before programming

Results depend on the exact engine, ECU, condition, software and existing modifications. Power and torque figures are estimates, not guaranteed measured results; fuel economy improvements are not guaranteed. Modifications can affect reliability, manufacturer warranty and emissions compliance, and must be declared to your insurer. AdBlue, DPF and EGR solutions are for off-road or track-only vehicles, not public-road use. Your technician confirms compatibility before programming.

Choose the right care for your vehicle

Explore all three services with one point of contact. Combined visits depend on the work and technician availability.

Check my vehicle

Estimated gains · fixed prices

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