The consumption and efficiency–optimised 7G–TRONIC PLUS automatic transmission features a compellingly lowered fuel consumption, extremely gentle gearshifts and a reduced noise level.
The AMG SPEEDSHIFT MCT 7–speed sports transmission offers a combination of unique functions. In addition to an agile, quick-response multiple downshift capability and an automatic double–declutching function, the high–performance transmission has four individual transmission modes and the Race Start function to choose from.
Controlled Efficiency (or "C" for short) stands for consumption–optimised driving, in particular in combination with the new ECO start/stop function (which can switch off the engine temporarily when the vehicle is not moving). Transmission modes "S" (Sport), "S+" (Sport Plus), "M" (Manual) and the Race Start Function enhance both motoring enjoyment and dynamic flair. They enable upshifts in less than 100 milliseconds. Gear changes virtually without an interruption of tractive power and an alternator management that uses kinetic energy when braking and when in overrun mode to recharge the vehicle battery, round off the features offered by this high–performance transmission system.
The AMG SPEEDSHIFT PLUS 7G-TRONIC system, with silver–coloured gearshift paddles and four drive modes – "C" (Controlled Efficiency), "S" (Sport), "S+" (Sport Plus) and "M" (Manual) – and features an automatic double–declutching function when shifting down. This ensures more dynamic performance and greater handling safety, together with an emotion–packed driving experience. Meanwhile, the ECO start–stop function enhances efficiency.
 Standard equipment for SL 350 BlueEFFICIENCY and SL 500 BlueEFFICIENCY; not available for AMG models
 Standard equipment with SL 63 AMG
 Not available for the SL 350 BlueEFFICIENCY or SL 500 BlueEFFICIENCY
 SL 65 AMG standard equipment
Facts and figures