We recently carried out a bespoke Stage 1 ECU calibration on this Mercedes-AMG GLC 43, unlocking additional performance from the twin-turbocharged V6 engine while maintaining the refinement, drivability and everyday usability expected from an AMG SUV.

Performance Figures



Stock: 390 hp / 520 Nm

Stage 1: 420 hp / 620 Nm

Increase: +30 hp / +100 Nm

The Stage 1 calibration delivers a noticeable improvement throughout the rev range, with stronger mid-range torque, sharper throttle response and improved acceleration.

The additional torque helps the GLC 43 pull harder from lower RPM while providing a more urgent and responsive feel under acceleration, making overtaking and motorway driving considerably more effortless while retaining smooth power delivery for everyday use.

Unlike generic tuning files, our calibrations are developed to provide strong, usable performance while remaining within the safe operating limits of the vehicle.

Additional Software Options Included

As part of this vehicle's setup, we also carried out:

• Speed Limiter Removal

Dealer-Level Diagnostics Included

Every tuning appointment includes advanced dealer-level diagnostics before and after the calibration process.

This allows us to identify any underlying issues that could affect performance and confirm the vehicle is operating correctly once the software installation is complete.

Fully Mobile Mercedes Tuning

At MTech Tuning, we provide a fully mobile service, travelling directly to your home or workplace at no additional cost.

There is no need to visit a tuning centre or leave your vehicle for the day. We bring professional ECU tuning and diagnostics directly to you.

We regularly cover Somerset and surrounding areas, providing mobile ECU remapping, gearbox tuning and performance software solutions for Mercedes-Benz, BMW, Audi, Volkswagen and many other manufacturers.

0% Finance Available

We understand that vehicle modifications can be a significant investment, which is why we offer flexible finance options, including 0% finance on eligible purchases.

Instant BHP Checker

Curious what your vehicle is capable of?

Visit our website and use the Instant BHP Checker to view estimated performance gains for your car, or get in touch to discuss the best tuning options available.

Mercedes GLC 43 Remap • Mercedes-AMG GLC 43 Stage 1 • Mercedes GLC 43 ECU Tuning • Mobile Mercedes Remapping • Dealer-Level Diagnostics • Somerset

MTech Tuning – Professional Mobile ECU & Gearbox Tuning