Range extender digital engine electronics (RDME)
The engine of vehicles equipped with range extender is controlled via its own engine control: the range extender digital engine electronics (RDME)
The pure electric motor eDrive can provide a range of 130 kilometer to 160 kilometer. Since some customers may not want to do without a greater range, the optional range extender provides the possibility to extend the electrical range.
The 2-cylinder-petrol engine is a small, smoothly and silently running gasoline engine that powers an alternator: the range extender electrical machine.
Whenever the state of charge of the battery is too low, the range extender will be put into operation.
The 2-cylinder-petrol engine has the designation W20K06U0. With its 649 cm3, it provides 28 kW (38 hp) at 5000 RPM.
| W | Foreign engine |
| 2 | 2 cylinder in-line engine |
| 0 | Basic motor |
| K | Gasoline engine, installed horizontally |
| 06 | 0.6 l displacement |
| U | Lower performance class |
| 0 | New development |