Operating the on-board computer

See also:

Removing/attaching the washer fluid reservoir
You must remove the washer fluid reservoir from the engine compartment before you can replace the bulbs in the left-hand headlamp. To detach: turn catch 2 counterclockwise. Swing washer flui ...

Roadside Assistance button
► Open the stowage compartment under the armrest. ► Press and hold Roadside Assistance button 1 for more than two seconds. This initiates a call to the Mercedes-Benz Customer Assi ...

Fuel grade
You should only refuel with unleaded premium-grade gasoline as this avoids damaging the catalytic converter. If engine running problems are apparent, have the cause checked immediately and rep ...