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Mercedes-Benz & AMG ECU Remapping

Mercedes-Benz and Mercedes-AMG models use different engine and ECU platforms across generations.

Whether you're considering tuning for a turbocharged Mercedes or an AMG performance model, start with the exact vehicle so we can check compatibility and available calibration options.

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Identify your Mercedes-Benz engine before choosing a tune

The 13 listed model families above cover the records currently in our library, not every Mercedes-Benz ever produced. Select the generation and factory output matching your car; a shared model badge does not guarantee the same engine, ECU or gearbox.

Stage 1 normally retains standard performance hardware; Stage 2 requires the parts specified for that engine. Some ECUs need unlocking or workshop access at our Slough workshop.

Mercedes-Benz gearbox considerations

Mercedes automatics differ by model and generation. Gearbox software is only discussed once the exact transmission is confirmed.

Mercedes-Benz questions

Is a C43 W205 the same as a C43 W206?
No. They are different generations with different engines, so they are not tuned the same way.

Available figures are estimates, not a dyno result for your vehicle. If your engine is missing, send the registration and configuration for assessment rather than applying another variant's numbers.

Get Your Mercedes-Benz Remap Quote

Select one or more services and send your enquiry to STX Tuning.

Your vehicle
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  • 4.9/5 Google rating · 535 reviews
  • Slough workshop
  • Vehicle-specific quotes

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Google Customer Reviews

Don't Just Take Our Word For It.

See what customers say about their experience with STX Tuning.

Google Reviews

4.9

535 Google Reviews

  • Loizos Kyriacou

    Jun 2025

    Went to remap my GLE 250d and the whole process was smooth from start to finish. Super responsive, and had the job done quickly with zero hassle. The results are brilliant , noticeable power gains straight away and smoother drive overall. Would highly recommend them to anyone looking for a quality remap with excellent customer service!

    Posted on Google · view on our Google profile
  • Debby Cunliffe

    Jun 2025

    Fantastic service. Came to my home on a Sunday to remap my car. Great job done and lifetime warranty plus interest free payment facility over 4 months available. Highly recommend

    Posted on Google · view on our Google profile
  • Daniel Sullivan

    Jan 2025

    Highly recommended service. The team at STX are very accommodating and professional. Had a remap on my Audi which was turned around in a day. Running perfectly. I will definitely be back for additional work in the near future.

    Posted on Google · view on our Google profile
  • Stephen Hall

    Jan 2025

    Great and quick service, sorted my emissions error out on my car , "Really happy with the remap done on my car, polite, efficient service and would highly recommended"

    Posted on Google · view on our Google profile
  • Tony Thorpe

    Dec 2024

    STX tuning really looked after me and my van, explained the process and carried out work without any fuss whatsoever! Van has been perfect since. Would definitely recommend to anyone to use! Keep up the good work guys!

    Posted on Google · view on our Google profile
  • ಠ_ಠ

    Nov 2024

    Honestly well happy with the stage 1 re map, was worried if I would even feel a power difference from 125-151bhp but I can assure you it’s a difference, aswell as a good high change in torque. It took about 30 minutes, brilliant service, and dome good tips on how to take care of my car after ⭐️⭐️⭐️⭐️⭐️

    Posted on Google · view on our Google profile