2021–2024 Mercedes-Benz AMG A35 / CLA35 / GLA35 / A45 / CLA45 / GLA45 Custom HP Tuners Tuning (2.0L Turbo M260 / M139)

Our HP Tuners custom calibrations for the 2021–2024 Mercedes-Benz AMG compact lineup are engineered to optimize the performance of the 2.0L Turbo M260 and M139 engines. Whether you own a 35 AMG or the flagship 45 AMG S, our in-house tuning delivers sharper throttle response, increased horsepower and torque, and refined drivability while preserving AMG reliability.

Key Features

• Engine Coverage

  • M260 2.0L Turbo I4 – A35 AMG, CLA35 AMG, GLA35 AMG (2021–2024)

  • M139 2.0L Turbo I4 – A45 AMG, CLA45 AMG, GLA45 AMG (2021–2024, including 45 S models)

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

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

• Safe Performance – Calibrations built with optimized fueling, knock-safe ignition strategies, and smooth drivability for both daily and performance use

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

Benefits

• Faster throttle response and reduced turbo lag

• Noticeable horsepower and torque gains across the RPM range

• Stronger mid-range and top-end acceleration

• Enhanced transmission performance for daily driving and track use

• Reliable calibrations for stock or modified AMG builds

Compatibility

Custom tuning is available for:

• 2021–2024 Mercedes-Benz A35 AMG (M260 2.0L Turbo)

• 2021–2024 Mercedes-Benz CLA35 AMG (M260 2.0L Turbo)

• 2021–2024 Mercedes-Benz GLA35 AMG (M260 2.0L Turbo)

• 2021–2024 Mercedes-Benz A45 AMG / A45 S (M139 2.0L Turbo)

• 2021–2024 Mercedes-Benz CLA45 AMG / CLA45 S (M139 2.0L Turbo)

• 2021–2024 Mercedes-Benz GLA45 AMG / GLA45 S (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 for your build.

5. Flash your tune and enjoy immediate gains.

Professional Assurance

Every AMG calibration is developed in-house with precision and reliability in mind. From daily-driven A35s to track-prepped A45 S models with upgraded turbos, our HP Tuners custom tuning delivers consistent, proven results for the M260 and M139 platforms.

Meta Description (SEO)

Custom HP Tuners tuning for 2021–2024 Mercedes-Benz AMG A35, CLA35, GLA35, A45, CLA45, and GLA45. Support for 2.0L Turbo M260 & M139 engines. Improve horsepower, torque, and drivability.