Information about driving in mountainous
areas
Vehicles with diesel engines: the operating safety
of the diesel engine is guaranteed up to an alti‐
tude of 2,500 m above sea level. You may exceed
this height for a short time, e.g. in mountainous
terrain. Do not drive continuously at altitudes
above 2,500 m. Otherwise, you may damage the
diesel engine.
When driving in mountainous areas, note that the
engine power, and therefore its gradient-climbing
capability, decrease with increasing altitude. The
ECO Start function is no longer available when
driving at altitudes of 2,500 m above sea level.
Notes on braking on downhill gradients can be
found in Notes on braking(
/
page 119).
ECO start/stop function
ECO start/stop function operation
The engine is switched off automatically if the fol‐
lowing conditions are met:
R
Vehicles with manual transmission: you
decelerate the vehicle to a lower speed, then
engage neutral
i
and then release the
clutch pedal.
R
Vehicles with automatic transmission: you
stop the vehicle in transmission position
h
or
i
.
R
All on vehicle conditions for automatic engine
stop are met.
When stationary, the
è
symbol appears in the
multifunction display. If all on vehicle conditions
are not met, the
ç
symbol appears in the mul‐
tifunction display.
The engine restarts automatically in the following
cases:
R
Vehicles with manual transmission: you
depress the clutch pedal.
R
Vehicles with manual transmission: you
engage reverse gear
k
.
R
Vehicles with automatic transmission: you
release the brake pedal in transmission posi‐
tion
h
and with the HOLD function deactiva‐
ted.
R
Vehicles with automatic transmission: you
shift out of transmission position
j
.
R
Vehicles with automatic transmission: you
select transmission position
h
or
k
.
R
you depress the accelerator pedal.
R
an on vehicle automatic engine start is
required.
If the engine was switched off by the ECO start/
stop function and you leave the vehicle, a warning
tone sounds. Additionally, the
Vehicle is opera-
tional Switch off the ignition before exiting
dis‐
play message appears in the multifunction dis‐
play. If you do not switch off the ignition, the igni‐
tion is automatically deactivated after one
minute.
Switching the ECO start/stop function off/on
#
Press the
1
button.
A display appears in the instrument cluster
when the ECO start/stop function is switched
off or on.
%
When the vehicle is stationary, a display
appears in the instrument cluster while the
ECO start/stop function is switched off.
ECO display function
The ECO display summarises the driving charac‐
teristics from the start of the journey to its com‐
pletion and assists you in achieving the most eco‐
nomical driving style.
You can influence consumption if you:
R
anticipate road and traffic conditions.
R
observe the gearshift recommendations.
124 Driving and parking