See also:

Deactivating/activating DTC Dynamic Traction Control
The system can be deactivated/activated via the TRACTION and SPORT+ programs of the Dynamic Driving Control. ...

All around the steering wheel
1 Rear window safety switch 2 Power windows 3 Exterior mirror operation 4 Lane departure warning    Collision warning 5 Lamps Front fog lamps Parking lamps ...

Switch off the engine during longer stops
Switch off the engine during longer stops, e.g., at traffic lights, railroad crossings or in traffic congestion. Fuel savings are achieved after the vehicle is switched off for only approx. 4 s ...