224Driving and operatingDriving hints
Driving economically
ECO mode
ECO mode is a function that
optimises fuel consumption. It affects engine power and torque,
acceleration, gear shift indication,
heating, air conditioning and electrical consumers.
Activation
Press ECO. When activated ECO
appears in the Driver Information
Centre.
During driving, it is possible to
temporarily disable ECO mode, e.g. to increase engine performance, by
depressing the accelerator pedal
firmly.
ECO mode is reactivated when
pressure is reduced on the
accelerator pedal.
Deactivation
Press ECO again. ECO disappears in
the Driver Information Centre.
Driver Information Centre 3 104.
Control of the vehicle
Never coast with engine not
running (except during Autostop)
Many systems will not function in this
situation (e.g. brake servo unit, power steering). Driving in this manner is a
danger to yourself and others. All
systems function during an Autostop,
but there may be a controlled
reduction in power steering assist and
vehicle speed is reduced.
Stop-start system 3 227.Pedals
To ensure the pedal travel is
uninhibited, there must be no mats in the area of the pedals.
Use only floor mats which fit properly
and are fixed by the retainers on the
driver's side.
Driving downhill
Engage a gear when driving downhill
to ensure that sufficient brake
pressure is available.
Steering If power steering assist is lost
because the engine stops or due to a
system malfunction, the vehicle can
be steered but may require increased
effort.Caution
Vehicles equipped with hydraulic
power steering:
If the steering wheel is turned until it reaches the end of its travel, and
is held in that position for more
226Driving and operatingSteering wheel lock
Remove key from ignition switch and
turn steering wheel until it engages.9 Danger
Never remove the key from
ignition switch during driving as
this will cause steering wheel lock.
Starting the engine
Manual transmission: operate clutch.
Manual transmission automated:
operate brake; transmission
automatically shifts to N.
Do not accelerate.
Turn the key to position 2 for
preheating, and hold until control
indicator N extinguishes from the
Driver Information Centre.
Notice
Depending on vehicle, if a gear is
engaged during preheating, a
message may appear in the Driver
Information Centre (DIC) 3 104
indicating that the clutch pedal must be depressed when starting the
engine.
Turn key to position 3 and release.
The increased engine speed
automatically returns to normal idling
speed as the engine temperature
rises.
Start attempts should not last longer
than 15 seconds. If engine does not
start, wait 15 seconds before
repeating starting procedure. If
necessary, depress accelerator
before repeating starting procedure.
Notice
Rear-wheel drive with twin rear
wheels and front-wheel drive: When
starting on a level surface with anunladen vehicle, it is recommended
that second gear is selected when
starting off.
Before restarting or to switch off the
engine, turn key back to 0.
During an Autostop, the engine can
be started by depressing the clutch
pedal.
Stop-start system 3 227.
Turbo engine warm-up
Upon start-up, engine available
torque may be limited for a short time, especially when the engine
temperature is cold. The limitation is
to allow the lubrication system to fully
protect the engine.
Driving and operating247The traction control system is not
operational. Have the cause of the
fault remedied by a workshop.
Vehicle messages 3 105.
Driver Information Centre 3 104.
Electronic Stability Control
The Electronic Stability Control (ESC)
improves driving stability when
necessary, regardless of the type of
road surface or tyre grip. It also
prevents the drive wheels from
spinning.
As soon as the vehicle starts to
swerve (understeer / oversteer),
engine output is reduced and the wheels are braked individually. This
considerably improves the driving
stability of the vehicle on slippery road
surfaces.
ESC is operational as soon as the
ignition is switched on and control
indicator b extinguishes in the
instrument cluster.
When ESC comes into action b
flashes.9 Warning
Do not let this special safety
feature tempt you into taking risks
when driving.
Adapt speed to the road
conditions.
Control indicator b 3 100.
Trailer stability assist 3 265.
Enhanced traction function
If necessary, in the event of soft
ground, mud or snow-covered road
surfaces, ESC can be deactivated to
enhance traction:
Press Ø.
A message appears in the Driver
Information Centre.
When vehicle speed reaches
30 mph, the system switches
automatically to standard ESC
operation. A message appears in the
Driver Information Centre.
ESC is reactivated by pressing Ø
again.
ESC is also reactivated the next time
the ignition is switched on.
Engine drag torque control The engine drag torque control
system is an integral feature of ESC. When downshifting under slippery
road conditions, the engine speed
and torque increases to help prevent
locking of the drive wheels during
sudden deceleration.
Side wind assist The side wind assist is an integralfeature of ESC and maintaines the
vehicle's path. When the system
comes into action " appears in the
Driver Information Centre.
248Driving and operatingFault
If the system detects a fault, control indicator b 3 100 illuminates together
with j 3 98 in the instrument cluster
and a corresponding message
appears in the Driver Information
Centre 3 104.
The ESC is not operational. Have the cause of the fault remedied by aworkshop.
Vehicle messages 3 105.
Driver Information Centre 3 104.
Limited-slip rear axle
Rear-wheel drive vehicles may be
equipped with an automatic locking
rear differential which automatically
controls the torque transmitted to
each rear wheel, enhancing traction
in the event of soft ground, mud or
snow-covered road surfaces.9 Warning
Do not let this special safety
feature tempt you into taking risks
when driving.
Adapt speed to the road
conditions.
When vehicle speed reaches
20 mph, or once the rear wheels
return to surfaces with normal grip,
e.g. paved roads, the system
automatically deactivates,
sometimes accompanied by a noise
(with no consequence to vehicle
behaviour).
The system can also be deactivated
manually once normal grip conditions have resumed by briefly releasing the
accelerator.
Driver assistance
systems9 Warning
Driver assistance systems are
developed to support the driver
and not to replace the driver's
attention.
The driver accepts full
responsibility when driving the
vehicle.
When using driver assistance
systems, always take care
regarding the current traffic
situation.
Cruise control
The cruise control can store and
maintain speeds of 20 mph and
above. Deviations from the stored
speeds may occur when driving uphill or downhill. The stored speed will
flash in the Driver Information Centre
3 104.
300Vehicle careRaise the vehicle by pressing the
wheel wrench until the wheel is
clear of the ground.
4. Unscrew wheel bolts / nuts completely and wipe clean with a
cloth.
Put wheel bolts / nuts somewhere
where the threads will not be
soiled.
5. Change the wheel.
6. Screw in the wheel bolts / nuts. Separately supplied bolts must beused for the temporary spare
wheel. These are allowed only for the temporary spare wheel. Refer
to an label on the temporary spare
wheel.
7. Lower vehicle.
8. Install the wheel wrench (depending on vehicle, attach
wheel wrench to adapters)
ensuring that it is securely located and tighten each wheel bolt / nut
in a crosswise sequence.
Tightening torque is: 172 Nm
(Front-wheel drive), 235 Nm(Rear-wheel drive with twin rear
wheels), 264 Nm (Rear-wheel
drive with single rear wheels).
9. Refit wheel cover. Rear-wheel drive, with twin rear
wheels: Install the tyre valve
extender to the inner rear wheel
before refitting the wheel cover.
Notice
If applicable, fit anti-theft bolts
nearest the tyre valve (otherwise it
may not be possible to refit the wheel
cover).
10. Stow the replaced wheel 3 300
and the vehicle tools 3 289.
11. Have the new wheel balanced on the vehicle. Check the tyre
pressure of the installed tyre
3 315 and also the wheel bolt /
nut torque as soon as possible.
Have the defective tyre renewed or
repaired.
Spare wheel
The spare wheel can be classified as
a temporary spare wheel depending
on the size compared to the othermounted wheels and country
regulations. In this case a permissible maximum speed applies, even
though no label at the spare wheel
indicates this.Caution
The use of a spare wheel that is smaller than the other wheels or in
combination with winter tyres
could affect driveability. Have the
defective tyre replaced as soon as
possible.
The spare wheel is held under the
vehicle frame using a winch and
secured by tightening a cable using
the wheel wrench and adapters
(depending on vehicle).
It may be necessary to jack the
vehicle up to gain access to the spare
wheel on a fully loaded vehicle with a flat rear tyre.
342Disconnecting a phone...............194
Display ........................................ 128
Displaying pictures .....................160
Display screen operation ....128, 192
Door locks..................................... 22
Door open .................................. 103
Doors .................................... 29, 334
DPF (diesel particle filter) ...........232
Drink holders ................................ 73
Driver assistance systems ..........248
Driver Information Centre ...........104
Driving characteristics and towing tips .............................. 264
Driving economically................... 224
Driving hints ................................ 224
Driving style indicator Fuel economy gauge ..............128
E Easy access ............................... 128
Eco-coaching .............................. 128
Eco Driving ................................. 128
ECO mode .................................. 224
Edit Itinerary ............................... 182
Electric adjustment ......................38
Electrical accessories ...................87
Electrical system......................... 284
Electronic climate control system 209
Electronic driving programmes ..242
Electronic key system ...................21Electronic Stability Control 100,
247, 265
Emergency call ........................... 199
Emergency exit .......................41, 43
Emergency number ....................199
End-of-life vehicle recovery .......269
Engine compartment fuse box ...285
Engine coolant ........................... 272
Engine coolant temperature ......100
Engine coolant temperature gauge ....................................... 92
Engine drag torque control .........247
Engine exhaust .......................... 232
Engine identification ...................314
Engine oil ................... 270, 311, 315
Engine oil additives ....................311
Engine oil pressure ....................101
Engine oil viscosity grades .........311
Enhanced traction function 246, 247, 248
Enter an address ........................176
Entering a number manually ......200
Event data recorders ..................321
Exhaust gases ............................ 232
Exit lighting ................................ 115
Exterior care .............................. 307
Exterior light ............................... 102
Exterior lighting ............13, 109, 332
Exterior mirrors ............................. 38
External device authorisation .....196F
Fader .......................................... 136
Fault ........................................... 243
Favourite destinations ................176
Favourites ................................... 128
Media ...................................... 128
Navigation ............................... 128
Phone ...................................... 128
Services .................................. 128
Fire extinguisher ........................... 80
First aid ......................................... 80
First aid kit ................................... 80
Fixed air vents ........................... 221
FM station list ............................. 146
Fog lights .................................... 112
Folding mirrors ............................. 38
Folding mirrors setting ................128
Folding seat .................................. 73
Front airbag system .....................61
Front courtesy light .....................113
Front fog lights ...........102, 112, 278
Front reading light....................... 115
Front seats.................................... 45
Front storage ................................ 73
Front turn lights .......................... 278
Fuel economy gauge Driving style indicator ..............128
Fuel for diesel engines ..............261
Fuel gauge ................................... 92 Fuel tank ..................................... 315