The DCT work has led to:

• the use of a dual dry clutch combined with electric actuators,
• a specification calibrated to minimize fuel consumption.

This DCT will be introduced in the first quarter of 2010 and will initially be available on core-range dCi 110 DPF versions of New Megane. Thanks to their lower CO2 emissions, these DCT-equipped Meganes will be the brand's first automatic cars to qualify for the Renault eco² signature.

Renault's new DCT is an automatic transmission. There is no need for a clutch pedal, while gearshift control is of the 'P-R-N-D' type, plus an 'up/down' shift mode. Gearshifts are automatic and comfortable, and the ideal gear is selected by an electronic control unit.

To optimize efficiency and minimize fuel consumption, Renault has chosen a dual dry clutch system. The first of the two clutches looks after the odd-number gears (1st, 3rd and 5th), while the second covers the even-number gears (2nd, 4th and 6th), as well as reverse.

The gears are carried by four shafts: two concentric primary shafts (each of which is connected to a clutch) and two secondary shafts. Gears are matched by means of synchronizers, as is the case with a manual gearbox. These synchronizers, like the clutches, are operated by electric actuators which are in turn controlled by a control unit.