A Mercedes-Benz CL 500 388hp (C216 – 2006 – 2010) makes about 408 hp and 570 Nm with Stage 1 software, compared with 388 hp and 530 Nm from the factory. That is 20 hp and 40 Nm extra.

This is a petrol engine with a displacement of 5,461 cc and engine code M273.961. The engine is controlled by the Bosch ME9.7, the gearbox by the Siemens/Continental VGS3-NAG2. The software file can be written with tools such as Alientech KESSv2, Autotuner, CMD CMDFlash and MagicMotorsport Flex.

Besides Stage 1, the following options are available for this vehicle: DECAT, DTC Removal, FLAPS, Pop & Bang Crackle map and Vmax.

Frequently asked questions

How much power and torque does a Mercedes-Benz CL 500 388hp gain with Stage 1?

About 20 hp and 40 Nm: from 388 hp / 530 Nm to roughly 408 hp / 570 Nm. The exact gain depends on engine condition and fuel quality.

Which ECU does a Mercedes-Benz CL 500 388hp use?

Bosch ME9.7 (engine); Siemens/Continental VGS3-NAG2 (gearbox).

Which tools can read a Mercedes-Benz CL 500 388hp?

Alientech KESSv2, Autotuner, CMD CMDFlash and MagicMotorsport Flex.

Which extra options are available for a Mercedes-Benz CL 500 388hp?

DECAT, DTC Removal, FLAPS, Pop & Bang Crackle map and Vmax.

Figures are indicative and vehicle specific. Check the regulations that apply in your country before modifying engine software.