Power Club

The TDI Tuning Blog

December Car Of The Month - Mercedes SL400

Mercedes SL400

Tuning The Mercedes SL400 3.0L 4MATIC

The new 2016 SL400 is Mercedes biggest selling roadster. Powered by a 3.0L 362Bhp twin-turbo V6, this SL is able to achieve 0-62 in an impressive 4.9 seconds through its nine-speed automatic gearbox. With an impressive list of driver comforts this SL400 comes with the Mercedes new Curve Tilt function designed for the S-Class, leaning the vehicle into bends to create a smoother drive.

Our CRTD4 TWIN Channel Tuning Box works in harmony with the vehicles ECU allowing us to provide the safest tuning solution.

With our CRTD4 Tuning Box installed:- 
Power was increased from 362 to 424Bhp 
Torque was increased from 465 to 525NM


Mercedes SL400


CRTD4 MULTI Channel Tuning Box

The CRTD4 Multi-Channel Petrol Tuning Box for the Mercedes-Benz SL-Class 3.0 SL400 4MATIC from TDI-Tuning is at the cutting edge of digital tuning box technology. With custom designed and engineered micro-processor architecture the CRTD4 remaps vehicle performance moment to moment based on data received via the engine sensor interface harness. The engine fuelling profile of the vehicle is then altered to improve power and torque delivery whilst eliminating flat spots in individual gear acceleration arcs, creating a smoother and more responsive drive experience. In addition to additional Power and Torque our Multi-Channel model also remaps Turbo delivery by having it activate earlier in the rpm range making acceleration smoother and greatly improved.


For domestic vehicle owners, the CRTD4 Multi-Channel represents great value with its seven operation mode settings which allows owners to adjust power and torque output between maximum economy and maximum power, perfect for switching between everyday driving and long-haul trips. Our CRTD4 range of products can also be reprogrammed for use in over 90% of other turbo Diesel and Petrol vehicles, meaning you can change your vehicle often as you want safe in the knowledge your CRTD4 can be used again.


Mercedes SL400