Acoustic protection for
pedestrians
Depending on the country variant, the system
generates a continuous driving noise when at a
standstill in drive-ready state and during electric
driving up to 30 km/h, 20 mph.
A loudspeaker system plays the noise outside
the vehicle.
As a result, other road users, for example pedes‐
trians or cyclists, can detect the vehicle better.
High-voltage battery, long
stationary periods
Follow notes on vehicle lay-up and longer sta‐
tionary periods.
For further information:
High-voltage battery, long stationary periods, see
page 426.
Start/Stop button
Principle
Drive-ready state is switched on
and off by pressing the Start/Stop
button.
Steptronic transmission: drive-
ready state is switched on by
pressing the Start/Stop button while the brake
pedal is depressed.
Pressing the Start/Stop button again switches
drive-ready state off again and standby state is
switched on.
The drive-ready state cannot be switched on
when the charging cable is connected.
For further information:
▷ Drive-ready state, see page 52.
▷ Standby state, see page 52.
▷ Charging cable, see page 357.
Driving off
1. Switch on drive-ready state.
2. Apply the drive position.
3. Releasing the parking brake.
4. Drive off.
Full drive power may not be available until ap‐
prox. 30 seconds after the internal combustion
engine is started. In this case, the vehicle will not
accelerate in the usual way.
Maximum drive power can be used as soon as
eBOOST is available.
Automatic Start/Stop
function
Principle
The Auto Start Stop function helps you to save
fuel. The system therefore shuts down the inter‐
nal combustion engine, if the preconditions for
electric driving are met. The standby state re‐
mains switched on.
General
READY is shown in the instrument cluster. If
needed, the internal combustion engine starts
automatically.
The internal combustion engine is also stopped
during the journey when rolling off or braking.
This drive state, where the vehicle is rolling and
energy recuperation is not active, is referred to
as coasting.
The internal combustion engine is not shut down
automatically in the following situations:
▷ The internal combustion engine is not at op‐
erating temperature.
▷ Gear selector lever in M/S position.
▷ High-voltage battery is heavily discharged or
vehicle electric system is highly loaded.
Seite 151
Driving
CONTROLS
151
Online Edition for Part no. 01405A1EA53 - X/20
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