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ECU Tuning Wales
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Performance

Remapping

Vehicle-specific ECU calibration for performance, response and economy.

VAG Tuning

Performance options for Audi, Volkswagen, SEAT, Skoda and related platforms.

BMW & MINI Tuning

Engine and transmission tuning for supported BMW and MINI vehicles.

Ford Tuning

Performance tuning for supported Ford petrol and diesel vehicles.

Gearbox Tuning

DSG, DCT and automatic gearbox calibration, care and supporting services.

Classic & Vintage Tuning

Rolling-road setup for carburettors, ignition and mechanical injection.

Motorsport Tuning

Calibration and datalogging for competition vehicles and standalone ECUs.

Dyno Sessions

Power runs, datalogging and controlled testing on our braked rolling road.

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Engine diagnostics & fault finding

Engine diagnostics & fault finding

Free code scan & assessment

Misfire diagnostics

Turbo & boost diagnostics

Injector fault diagnosis

Non-start diagnostics

Injector bench testing

Engines and engine rebuilds
Transmission & drivetrain

Transmission diagnostics

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Gearbox tuning

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Vehicle inspection & condition report

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SRS & airbag diagnostics

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Volkswagen Group coding

Immobiliser diagnostics
Emissions

DPF, EGR & AdBlue diagnostics

DPF diagnostics

AdBlue diagnostics

EGR repairs

DPF removal

AdBlue delete

EGR delete: common issues

AdBlue & SCR: common issues

Catalyst removal
Engine cleaning & repairs

Carbon cleaning

Walnut blasting

Swirl flap repair & removal

Inlet manifolds

Ultrasonic cleaning

Engine & underbody steam cleaning

Carb repairs
Performance & tuning

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360 Modena / Spider 1 generation View generations
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Llandow Tuning

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BMW M57 tuning
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Rocketdog Racing

Tuning Near You

Bridgend
Caerphilly
Cardiff
Carmarthenshire
Monmouthshire
Neath Port Talbot
Newport
Pembrokeshire
Powys
Rhondda
Swansea
Torfaen
Vale of Glamorgan
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Nearby Towns

Penarth, Cowbridge, Barry, Llantwit Major, Bridgend, Pontyclun, Llantrisant, Pencoed, Rhoose, St Athan, Porthcawl and Cardiff.

Services

All Our Services
DPF Diagnostics
DPF Delete Wales
Free Code Scan & Assessment
AdBlue Diagnostics
AdBlue Delete Wales
AdBlue & SCR: Common Issues
EGR Diagnostics
EGR Delete: Common Issues
O2 Sensor Deletes
Walnut Blasting
ECU Testing and Repairs

Latest News

Audi TT: 177HP to 254HP. The power change followed a custom calibratio...
BMW transmission control module update. The owner requested the latest...
Free initial scan for engine, AdBlue, DPF and EGR concerns. Bring the...
Mini Cooper JCW: 81HP gain with our custom Stage 1 dyno tune. The resu...
Citroen Relay: recurring limp mode after previous tuning. Diagnostics...
VW Caddy custom Stage 1 dyno session. A £100 discount was advertised a...
Just for fun, whom can tell me what make and model of car this engine...
Mini R56 Cooper S race setup: 305HP. We spent two days working through...
Mercedes C43 AMG: 419HP. We developed the custom calibration on the ca...
Porsche Stage 1 calibration and AdBlue/SCR software work. For an exist...

View all news

Technical Resources

Technical Resources for Tuners
DTC Error Codes
VAG DSG & S tronic Guide
SRS ECU Lookup
Battery & BMS Module Lookup
HP Calculators
Pressure Calculators
MAF Tester
FRF and SGO to BIN Converter
BMW 0DA to BIN Converter
CAT FLS / FL2 to BIN Converter
BMW FRM3 D-Flash to EEPROM Repair
BMW-ISN Exctractor
VBF to BIN Converter
Map definitions to WinOLS CSV
WinOLS NOREAD Remover
Bosch ECU Part Number Lookup
File Service

Common Issues

BMW N55 Issues
VAG 2.0 TFSI Issues
AdBlue & SCR Issues
EGR Delete Issues

Latest Articles

New automatic tuning tools are everywhere. The quality has not kept up
Why does my engine lose power or enter limp mode under load?
Underboost and P0299: does the turbo need replacing?
Why does my engine still misfire after replacing plugs or coils?
The 2027 emissions proposals, and what they mean for a remap
Post-2020 Ford Transit Custom Tuning Is Now Available
Who Actually Writes Your OTS Remap?
Do BM3 OTS Maps Really Outperform Custom Tunes?
Bosch MD1CS003 tuning protection: locked and unlocked ECU numbers explained
The Benefits of Upgrading an Intercooler on a Diesel Engine

View all articles

Llandow Tuning, Llandow Dyno Centre, Unit 11 Sambucus Avenue, Llandow Trading Estate, Llandow, Cowbridge, Vale of Glamorgan, CF71 7PB · 01446 355001
© 2026 Llandow Tuning. Vehicle names, badges and trademarks belong to their respective owners and are used to assist owners in identifying their vehicle. No manufacturer endorsement or affiliation is implied.
Llandow Tuning specialises in vehicle modifications. Our work often involves altering a vehicle from its factory specifications, typically for motorsport or fast road use.
All modifications and tuning are carried out at the owner's risk. Customers should fully understand and accept these risks before work begins.
Dyno and rolling road use is at the owner's risk. Any damage caused to the dyno, dyno cell, or due to fluid spills must be paid for before the vehicle is released.
It is the customer's responsibility to ensure the vehicle is ready for tuning/dyno time and free from fluid leaks unless otherwise agreed in writing beforehand.
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