Mercedes ECU & Gearbox Remapping in North Somerset & South Wales


MTechTuning provides professional ECU and gearbox remapping for Mercedes-Benz vehicles, improving performance, drivability and efficiency while maintaining refinement and long-term reliability. We offer a fully mobile Mercedes tuning service across North Somerset and South Wales, carrying out all work at your home or workplace.


Specialist Mercedes Tuning Using Dealer-Level Diagnostics


Mercedes vehicles are engineered to deliver comfort, performance and smooth power delivery, but factory software can often restrict their full potential. Our Mercedes ECU and gearbox remaps are carefully calibrated to enhance torque delivery, throttle response and overall drivability without compromising refinement or reliability.


All Mercedes tuning work is carried out using dealer-level diagnostics, with full vehicle health checks completed before and after tuning. This ensures all systems are operating correctly and allows us to tailor the software specifically to your vehicle.

Mercedes ECU & Gearbox Remapping


For optimal results, Mercedes ECU remapping can be paired with gearbox remapping to ensure the engine and transmission work together seamlessly. This can improve shift smoothness, responsiveness and make better use of the available torque, particularly in automatic and AMG models.


Mercedes Models We Commonly Tune:

Mercedes A-Class, C-Class, E-Class and S-Class 

Mercedes GLA, GLC and GLE models 

Mercedes AMG and AMG-Line vehicles 

Petrol and diesel Mercedes engines 

Safe, Reliable Mercedes Tuning


Reliability is always the priority. All Mercedes ECU and gearbox software installed by MTechTuning is covered by a lifetime software warranty, with clear and honest advice provided before any work is carried out.


If you’re looking for professional Mercedes ECU or gearbox remapping, get in touch to discuss your vehicle and requirements.

We are rated 5 star on Google:

MTech Tuning google profile
January 2, 2026
Engine Tune: Stock - 105 hp / 250 nm Stage 1 - 140 hp / 320 nm ( +35 hp +70 nm ) Ad ons: -Speed limiter off Advanced dealer level diagnostic included 🏁 We are fully mobile meaning we will travel to your vehicle at home or work free of charge! 🏡 Get in touch now or visit our website for INSTANT BHP CHECKER Link in bio. 📲 0% finance options available
January 2, 2026
Engine Tune: Stock - 367 hp / 520 nm Stage 1 - 420 hp / 620 nm ( +53 hp +100 nm ) Ad ons: -Speed limiter off Advanced dealer level diagnostic included 🏁 We are fully mobile meaning we will travel to your vehicle at home or work free of charge! 🏡 Get in touch now or visit our website for INSTANT BHP CHECKER Link in bio. 📲 0% finance options available
BMW ZF6HP OBD gearbox tuning for faster, smoother shifts with improved torque handling, reduced lag.
December 24, 2025
ZF 6HP gearbox tuning for BMW – faster, smoother shifts, improved torque handling and reduced lag. Safe OBD tuning by BMW and ZF specialists. Book today now.