2020–2024 Mercedes-Benz GLA / GLB / CLA 35 & 45 AMG Custom HP Tuners Tuning (2.0L Turbo M260 / M139)

Our HP Tuners custom calibrations for the 2020–2024 Mercedes-Benz AMG compact SUV and coupe lineup are designed to maximize the performance of the 2.0L Turbo M260 and M139 engines. Whether you drive a 35 AMG or a 45 AMG S model, our in-house tuning delivers sharper throttle response, increased horsepower and torque, and refined transmission behavior while preserving AMG reliability.

Key Features

• Engine Coverage

  • M260 2.0L Turbo I4 – GLA 35 AMG, GLB 35 AMG, CLA 35 AMG (2020–2024)

  • M139 2.0L Turbo I4 – GLA 45 AMG, GLB 45 AMG, CLA 45 AMG (2020–2024, including 45 S variants)

• Transmission Support – Calibration for AMG 7-speed and 8-speed dual-clutch transmissions (DCT), refining shift strategies, launch control, and torque management

• Custom Calibration – Optimized for intakes, intercoolers, exhausts, downpipes, turbo upgrades, fueling enhancements, and flex-fuel/E85 conversions

• Safe Performance – Developed with knock-safe ignition, optimized fueling, and smooth daily drivability

• Remote Tuning – Fully supported via HP Tuners MPVI2 and MPVI3 for secure file exchange and flashing

Benefits

• Faster throttle response with reduced turbo lag

• Noticeable horsepower and torque gains across the RPM range

• Stronger mid-range pull and top-end acceleration

• Refined transmission performance for both city driving and spirited runs

• Reliable calibrations for stock and heavily modified AMG builds

Compatibility

Custom tuning is available for:

• 2020–2024 Mercedes-Benz GLA 35 AMG (M260 2.0L Turbo)

• 2020–2024 Mercedes-Benz GLB 35 AMG (M260 2.0L Turbo)

• 2020–2024 Mercedes-Benz CLA 35 AMG (M260 2.0L Turbo)

• 2020–2024 Mercedes-Benz GLA 45 AMG / GLA 45 S AMG (M139 2.0L Turbo)

• 2020–2024 Mercedes-Benz GLB 45 AMG / GLB 45 S AMG (M139 2.0L Turbo)

• 2020–2024 Mercedes-Benz CLA 45 AMG / CLA 45 S AMG (M139 2.0L Turbo)

Process

1. Purchase your AMG custom tuning package.

2. Use HP Tuners to read your factory ECU calibration.

3. Provide your stock file and list of modifications.

4. Receive a calibration tailored to your build.

5. Flash your tune and enjoy instant improvements.

Professional Assurance

All AMG calibrations are developed in-house with precision, ensuring smooth drivability, safe power delivery, and long-term reliability. From daily-driven 35 AMG models to track-ready 45 S builds with upgraded turbos, our HP Tuners custom tuning delivers consistent, proven results across the M260 and M139 platforms.

Meta Description (SEO)

Custom HP Tuners tuning for 2020–2024 Mercedes-Benz GLA, GLB, and CLA 35 & 45 AMG. Support for 2.0L Turbo M260 and M139 engines. Improve horsepower, torque, throttle response, and drivability.