Workshop services
At the home of Welsh Motorsport in Llandow
Explore our tuning, maintenance and repair services below. If you need something you cannot see listed, contact our team to discuss your vehicle.
Engine diagnostics & fault finding
Running faults, misfires, turbo and injector problems. Start with a free assessment, then agree the diagnostic plan.
Engine diagnostics & fault finding
Engine running faults, persistent problems and second opinions for owners and garages.
Free code scan & assessment
Free initial scan, printout and assessment for engine, emissions, starting and immobiliser faults.
Misfire diagnostics
Rough idle, cold-start misfires and hesitation, including faults remaining after previous repairs.
Turbo & boost diagnostics
Underboost, overboost, limp mode and poor power. Establish the cause before replacing a turbo.
Injector fault diagnosis
Diagnose suspected injector and fuelling problems on the vehicle before deciding on removal.
Non-start diagnostics
Engines that will not start, start then stop, or show relevant immobiliser warnings.
Injector bench testing
Supported petrol injectors on ASNU equipment and common-rail diesel injectors on a separate Delphi bench.
Engines and engine rebuilds
Engine rebuilds and replacement engines.
Transmission & drivetrain
Gearbox diagnosis, maintenance, adaptations and tuning, with Haldex and xDrive care.
Transmission diagnostics
Gearbox hardware and software fault finding, adaptations, conversion assessment, noise and vibration.
Gearbox servicing & rebuilds
DSG, DCT and automatic gearbox maintenance, fault diagnosis, repairs and rebuilds.
Gearbox tuning
Transmission calibration and gearbox tuning.
Haldex servicing
Coupling oil changes, pump and AWD diagnostics, and repairs for applicable VAG, Audi and Land Rover models.
xDrive servicing
BMW xDrive diagnostics and transfer-case servicing, including assessment of judder, binding and AWD warnings.
Vehicle care & inspections
Whole-vehicle condition reports, scheduled maintenance and routine workshop care.
Vehicle inspection & condition report
A whole-vehicle assessment with a detailed written report and photographs, useful after purchase or before warranty expiry.
Vehicle servicing
Manufacturer-schedule maintenance and servicing for modified and performance cars.
MOT
An MOT at the workshop, or one arranged around a service or repair.
Oil changes
Engine oil and filter changes for VAG, BMW, Mercedes-Benz and other premium vehicles, with oil-system cleaning where suitable.
Air conditioning
Regas and fault-finding on the workshop machines. Quote from your registration.
Disc skimming
Brake disc resurfacing at the workshop.
Carburettor servicing
Carburettor servicing for classic vehicles.
SRS, ECU & coding
Restraint-system faults, suspected ECU problems, module configuration and starting authorisation.
SRS & airbag diagnostics
Airbag warnings, SRS unit coding, aftermarket-seat faults and crash-data reset suitability.
ECU testing
Investigate suspected ECU faults and supported bench-testing requirements.
Coding & programming
Vehicle software updates and coding.
Immobiliser diagnostics
Starting and authorisation faults, with supported immobiliser and module-pairing enquiries.
Emissions
DPF, EGR and AdBlue investigation, cleaning, repairs and related information.
DPF, EGR & AdBlue diagnostics
Emission-system assessment, diagnosis, cleaning and appropriate repair options.
DPF diagnostics
Investigate DPF warnings, regeneration problems and related engine faults.
AdBlue diagnostics
Investigate AdBlue and SCR warnings and supported repair options.
EGR repairs
EGR fault diagnosis, cleaning and repair options.
DPF removal
DPF removal enquiries and the applicable use restrictions.
AdBlue delete
AdBlue software enquiries and the applicable use restrictions.
EGR delete: common issues
Read about EGR symptoms, diagnosis and considerations before making changes.
AdBlue & SCR: common issues
Read about warning messages, SCR faults and diagnostic considerations.
Catalyst removal
Catalyst removal enquiries and the applicable use restrictions.
Engine cleaning & repairs
Cleaning, manifold work and repairs appropriate to the engine and findings.
Carbon cleaning
Assess deposits and discuss suitable engine-cleaning work.
Walnut blasting
Remove carbon deposits with walnut-shell blasting.
Swirl flap repair & removal
Repair or remove flaps that are breaking up. Usually booked with the inlet manifold off.
Inlet manifolds
Manifold removal, replacement gaskets and refitting, with access for swirl flaps and port cleaning.
Ultrasonic cleaning
Cleaning of suitable removed components, with scope agreed before work.
Engine & underbody steam cleaning
Engine and gearbox degreasing, oil leak cleaning, and underbody preparation for rustproofing or restoration.
Carb repairs
Carburettor repairs for classic engines.
Performance & tuning
Calibration, dyno work, upgrades and checks before or after a remap.
ECU tuning / remapping
ECU calibration for vehicles with modern injection.
Vintage tuning
Carburettor and ignition tuning for classic vehicles.
Dyno sessions
Rolling road sessions on our 1,200 HP dyno.
Engine check-over
Engine health and logged performance checks before a tuning session.
Fit to Map
The engine check-over before a remap: logs, boost, clutch and emissions-system status. From £95.
Tuning inspection
A dyno and log report for a car that already has a map, including one you are about to buy.
Upgrade fitting
Fitting supported performance hardware, with calibration requirements discussed.
Turbo upgrades
Replacement or upgrade turbos, supplied and fitted, then calibrated.
Diesel fuelling upgrades
Upgraded injectors, lift pumps, larger high-pressure pumps and sensors.
Exhaust
Modify an exhaust, fit one, or have one built by arrangement.
Motorsport services
Workshop preparation and tuning enquiries for motorsport vehicles.
Van & motorhome mapping
Stage 1 for Transit Customs, vans, campers and motorhomes. From £250.