Additional Auto Start/Stop
function
Depending on the vehicle equipment and
country-specific version, the vehicle fea-
tures a variety of sensors for assessing the
traffic situation. The Auto Start/Stop func-
tion uses this information to adapt to vari-
ous traffic situations in a proactive manner.
For instance, this applies to the following
situations:
– When a situation is detected in which
the stopping time is expected to be very
short, the engine is not switched off au-
tomatically. A message appears on the
Control Display, depending on the situa-
tion.
– When a situation is detected in which
the vehicle needs to drive off immedi-
ately, the engine is started automati-
cally.
The function may be restricted if the navi-
gation data is invalid, outdated or not avail-
able, for example.
Switching the system on/off
Using the button
Press the button.
– LED comes on: auto Start/Stop function
is deactivated.
The engine is started during an auto-
matic engine stop.
The engine can only be stopped or
started via the Start/Stop button.
– LED goes out: auto Start/Stop function
is activated.
Switching off the vehicle during an
automatic engine stop
During an automatic engine stop, the vehi-
cle can be switched off permanently, for in-
stance when leaving it.
Steptronic transmission:
1. Engage selector lever position P.
2. Press the Start/Stop button. The ignition
is switched off. The Auto Start/Stop
function is deactivated.
3. Set the parking brake.
Manual transmission:
1. Press the Start/Stop button. The ignition
is switched off. The Auto Start/Stop
function is deactivated.
2. Shift into first gear or reverse.
3. Set the parking brake.
Engine start as usual via Start/Stop button.
Automatic deactivation
In certain situations, the Auto Start/Stop
function is deactivated automatically for
safety reasons, for instance if no driver is
detected.
Malfunction
The Auto Start/Stop function no longer
switches off the engine automatically. A
Check Control message is displayed. It is
possible to continue driving. Have the sys-
tem checked by a dealer's service center or
another qualified service center or repair
shop.
Seite 103
Driving CONTROLS
103
Online Edition for Part no. 01405A1E4E3 - II/20
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