Driving and operating135Notice
When the fast idle function is
activated, the stop-start system is
automatically deactivated and
cannot be reactivated by pressing
Î . LED in button illuminates to
indicate deactivation and a
corresponding message may
appear in the Driver Information
Centre 3 100.
Idle speed control 3 133.
Depending on version, if the driver's
door is opened or the driver's seat belt
is unfastened, the stop-start system is
deactivated automatically, and the
engine is switched off. Restart engine by pressing START/STOP .
Power button 3 130.
Autostop If the vehicle is at a low speed or at astandstill, activate an Autostop as
follows:
● depress the clutch pedal
● move the selector lever to neutral
● release the clutch pedalThe engine will be switched off while
the ignition stays on if the required conditions are met.
An Autostop is indicated when Ï
illuminates in the instrument cluster
3 99.
During an Autostop, heating and brake performance will be
maintained. Brake assist, however, is
not available 3 147.
Caution
The power steering assist may be
reduced during an Autostop.
If you exit the vehicle while the engine is in an Autostop, a warning chime will
sound and a message " IGNITION
OFF " is displayed in the Driver
Information Centre as a reminder that
the engine is on standby and has not
been switched off.
Conditions for an Autostop
The stop-start system checks if each
of the following conditions is fulfilled,
otherwise an Autostop will be
inhibited and control indicator \ will
illuminate in the instrument cluster:
● the stop-start system is not manually deactivated
● the bonnet is fully closed
● the driver's door is closed or the driver's seat belt is fastened
● the vehicle battery is sufficiently charged and in good condition
● the engine is warmed up
● the engine coolant temperature is
not too high
● the outside temperature is not too
low or too high (e.g. below 0 °C
or above 30 °C)
136Driving and operating● the defrosting function is notactivated
● the climate control system does not inhibit an Autostop
● the brake vacuum is sufficient
● the self-cleaning function of the diesel particle filter is not active
3 138
● the Antilock brake system (ABS) 3 146, Traction Control system
(TC) 3 147 and Electronic
Stability Program (ESP® Plus
)
3 148 ride control systems are
not actively engaged
● the vehicle has moved since the last Autostop
Otherwise an Autostop will be
inhibited.
Certain settings of the climate control
system may also inhibit an Autostop.
See " Climate control " chapter for
further information 3 116.
Immediately after motorway driving
an Autostop may be inhibited.
New vehicle running-in 3 130.Vehicle battery discharge protection
To ensure reliable engine restarts, several battery discharge protection
features are implemented as part of
the stop-start system.
Restart of the engine by the driver
Depress the clutch pedal to restart the
engine.
Notice
If any gear is selected, the clutch
pedal must be fully depressed to
restart the engine.
If the engine does not restart first
time, depress clutch pedal fully again.
Alternatively, press button Î to
restart the engine while in an
Autostop.
Control indicator Ï 3 99 extinguishes
in the instrument cluster when the engine is restarted.
Restart of the engine by the stop- start system
The selector lever must be in neutral
to enable an automatic restart.If one of the following conditions
occurs during an Autostop, the
engine will be restarted automatically
by the stop-start system:
● the vehicle battery is discharged
● the outside temperature is too low or too high (e.g. below 0 °C
or above 30 °C)
● the defrosting function is activated 3 116
● the brake vacuum is not sufficient
● the brake pedal is operated repeatedly
● the vehicle starts to move
An automatic engine restart may not
be possible if a door or the bonnet is
open.
If an electrical accessory, e.g. a
portable CD player, is connected to
the power outlet, a brief power drop
during engine restart may be
noticeable.
If the Infotainment system is active,
audio sound may briefly be reduced
or interrupted during the restart.
Driving and operating145Manual transmission
To engage reverse, with the vehicle
stationary depress the clutch pedal, pull up the collar on the selector lever
and engage the gear against the
resistance.
If the gear does not engage, set the
lever in neutral, release the clutch
pedal and depress again; then repeat
gear selection.
Do not slip the clutch unnecessarily.
When operating, depress the clutch pedal completely. Do not use the
pedal as a foot rest.
Caution
It is inadvisable to drive with hand
resting on the selector lever.
Upshift 3 97.
Stop-start system 3 134.
Brakes
The brake system comprises two independent brake circuits.
If a brake circuit fails, the vehicle can
still be braked using the other brake
circuit. However, braking effect is
achieved only when you depress the
brake pedal firmly. You need to use
considerably more force for this. The
braking distance is extended. Seek
the assistance of a workshop before
continuing your journey.
When the engine is not running, the
support of the brake servo unit
disappears once the brake pedal has been depressed once or twice.
Braking effect is not reduced, but
braking requires significantly greater
force. It is especially important to bear this in mind when being towed.
If control indicator R illuminates in
the instrument cluster while driving
and a corresponding message
appears in the Driver Information
Centre 3 100, there is a fault in the
braking system. Seek the assistance
of a workshop immediately.
152Driving and operatingAutomatic deactivation:● vehicle speed drops below 20 mph
● the brake pedal is depressed
● the clutch pedal is depressed
● selector lever in N
● engine speed is in a very low or very high range
The speed is stored and a
corresponding message appears in
the Driver Information Centre.
Reactivation Press R at a speed above 20 mph.
If the stored speed is much higher
than the current speed, the vehicle
will accelerate powerfully until the
stored speed is obtained.
Pressing < will also reactivate the
cruise control function, but at the
current vehicle speed only, not the stored speed.
Deleting the stored speedPress m; Green control indicators
U and m extinguish in the instrument
cluster.Cruise control speed limiter
The speed limiter prevents the
vehicle exceeding a preset maximum
speed above 20 mph.
Activation
Press U; control indicator U
illuminates yellow in the instrument
cluster.
Cruise control speed limiter function
is now in standby mode and a
corresponding message appears in
the Driver Information Centre.
Accelerate to the desired speed and
press < or ]. The current speed is
recorded.
The vehicle can be driven normally
but it will not be possible to exceed the programmed speed limit except in an
emergency.
Where the limit speed cannot be
maintained, e.g. when driving on a
steep decline, the limit speed will
flash in the Driver Information Centre
3 100, accompanied by a warning
chime.
Increase limit speed
The limit speed can be increased
continuously or in small increments
by holding down or tapping <
repeatedly.
Reduce limit speed
The limit speed can be decreased
continuously or in small increments
by holding down or tapping ]
repeatedly.
Exceeding the limit speed
In the event of an emergency, it is
possible to exceed the limit speed by
depressing the accelerator pedal
firmly beyond the point of resistance.
The limit speed will flash in the Driver
224IndexAAbsorptive Glass Mat battery .....169
Accessories and vehicle modifications .......................... 163
Adaptive forward lighting ...........108
AdBlue .................. 98, 103, 139, 202
AdBlue tank ................................ 216
Adjustable air vents ...................125
AGM battery ............................... 169
Airbag and belt tensioners ...........95
Airbag deactivation ................62, 95
Airbag label............................. 57, 62
Airbag system .............................. 57
Air conditioning regular operation ................................ 126
Air conditioning system .............. 115
Air intake .................................... 126
Air recirculation ...................115, 196
Air vents...................................... 125
Alert ............................................ 102
Antifreeze ................................... 167
Antilock brake system ................ 146
Antilock brake system (ABS) .......97
Anti-theft alarm system ................36
Anti-theft bolts............................. 192
Anti-theft locking system .............. 35
Anti-theft security lock ..................24
Appearance care ........................198
Armrest ........................................ 48
Ashtrays ....................................... 88Automatic anti-dazzle ..................41
Automatic fuel cut-off ..................133
Automatic light control ...............107
Automatic locking ........................30
Autostop ............................. 132, 134
Auxiliary heater ........................... 120
B Battery ........................................ 169
Battery discharge protection ......113
Battery, jump starting.................. 195
Belts.............................................. 53 Bench seat.................................... 74
BlueInjection ............................... 139
Bonnet ....................................... 164
Bottle holders................................ 74
Brake and clutch fluid .................202
Brake assist ............................... 147
Brake fluid .................................. 168
Brakes ............................... 145, 168
Brake system ............................... 96
Breakdown.................................. 196 Bulb replacement ....................... 173
C
Capacities .................................. 216
Car Pass ...................................... 20
Catalytic converter .....................138
Central locking system ................24
Centre high-mounted brake light 175
Changing tyre and wheel size ...188