Mercedes-Benz CLS ( C218 - 2010 - 2014 ) Tuning Boxes
The E3 Performance Tuning Box is unique: it's the only tuning box with overheating protection. Therefore the E3 Performance box is the safest way to improve the power and torque of your Mercedes-Benz CLS.
Select your Mercedes-Benz CLS engine:
Contact us if you can't find the engine of your car in our application list. If it's a recent engine, the E3 Performance tuning box might be in development.