Description
Disclaimer : Cancellations within 24 hours are subject to a cancellation fee. After 24 hours, a higher fee will apply.
Transform the performance and drivability of your 2016-2022 Mercedes-Benz E400, E450, or E43 AMG with the German Car Accessories (GCA Performance) ECU Tune. Engineered with a performance-first mindset, this ECU calibration is designed to make throttle response more immediate, torque delivery stronger and more consistent, and the entire powerband sharper and more responsive.
This is more than a simple horsepower upgrade. GCA Performance ECU tuning optimizes the 3.0L Twin Turbo V6 M276 engine throughout the RPM range, delivering stronger mid-range acceleration, improved top-end pull, and a more responsive driving experience.
GCA Performance securely saves your factory ECU data before tuning, allowing you to return your vehicle to its original stock calibration at any time.
Fitment
Compatible with:
- 2016-2022 Mercedes-Benz E400 Sedan (W213)
- 2016-2022 Mercedes-Benz E450 Sedan (W213)
- 2016-2022 Mercedes-Benz E43 AMG Sedan (W213)
- 2016-2022 Mercedes-Benz E400 Coupe (C238)
- 2016-2022 Mercedes-Benz E450 Coupe (C238)
- 2016-2022 Mercedes-Benz E43 AMG Coupe (C238)
- 2016-2022 Mercedes-Benz E400 Convertible (A238)
- 2016-2022 Mercedes-Benz E450 Convertible (A238)
- 2016-2022 Mercedes-Benz E43 AMG Convertible (A238)
- Engine: 3.0L Twin Turbo V6 M276
Tuning Specifications
- Stage 1 tuning available for vehicles with factory downpipes
- Stage 2 tuning available for vehicles equipped with GCA Performance downpipes
- Stage selection will be confirmed through the tuning instructions after purchase
- No additional charge for Stage 2 tuning
- Downpipe readiness with check engine light suppression (for off-road use only)
- Enhanced exhaust acoustics with extended or adjustable burble settings
- Factory speed governor removal for unrestricted performance
- Octane-specific calibration tailored to your fuel quality
- Cold start behavior fully configurable (On/Off)
- 100% reversible tuning with the ability to return to stock settings at any time
- Factory ECU data securely saved before tuning
Performance Gains
- Horsepower Gain: Up to +80 HP
- Torque Gain: Up to +80 TQ
CPC Module Recommendation
- 2019-2022 models come equipped with factory torque and horsepower limitations.
- GCA Performance recommends purchasing a CPC module to maximize tuning gains.
- Without a CPC module, the vehicle can still achieve approximately +40 HP and +40 TQ.
ECU Unlock Information
- Vehicles with build dates after June 2020 (06/2020+) come equipped with a factory-locked ECU.
- If an ECU unlock is not purchased, you will need to arrange your own ECU unlock before GCA Performance can tune the vehicle.
- If the ECU unlock option is purchased, instructions for the unlock process will be provided.
Tuning Instructions
- After purchase, GCA Performance will email detailed tuning instructions.
- The vehicle can be tuned using a provided tuning cable.
- The required tuning cable will be provided for the tuning process.
Warranty
- All German Car Accessories products are backed by a 1-Year Warranty.
