166
Heating, Ventilation and Air conditioning
Checking programming
If the timer h
as been switched on after switching the ignition off, the instant
on button will remain lit for around ten seconds.
WARNING
Never program the independent heating system to be activated and oper-
ated in c lo
sed, unventilated areas. The auxiliary heater fumes contain
carbon dioxide, an odourless and colourless toxic gas. Carbon monoxide
can cause people to lose consciousness. It can also cause death.
Operating instructions The auxiliary heater exhaust system located below the vehicle must be kept
cl
e
ar of snow, mud and other objects. The exhaust fumes must not be ob-
structed in any way. The exhaust fumes generated by the auxiliary heater
are removed via an exhaust pipe fitted underneath the vehicle.
On heating the vehicle interior, depending on the outside temperature the
warm air is first directed at the windscreen and then to the rest of the pas-
senger compartment through the air vents. If the air vents are turned to-
wards the windows, for example, the form of air distribution may be affec-
ted.
Depending on the outside temperature, the temperature at which the auxili-
ary heater warms the vehicle interior may be somewhat higher if the heating
or climate control temperature control is set to maximum before switching
the heating on.
Depending on the engine, vehicles with auxiliary heater may be fitted with a
second battery in the luggage compartment that is responsible for powering
the auxiliary heater. Cases in which the auxiliary heater will not switch on
●
The auxiliary heater requires about as much power as the dipped head-
lights. If the batt
ery charge is low, the auxiliary heater will switch off auto-
matically or will not even switch on. This avoids problems when starting the
engine.
● The heater will switch just once each time. The timer will also have to be
switc
hed back on every time it is required. Note
● Noise will be heard while the auxiliary heater is running.
● When the air humidity i
s high and the outside temperature low, the
heating sy
stem may evaporate condensation from the auxiliary heater. In
this case, steam may be released from underneath the vehicle. This is com-
pletely normal and there is no need to suspect a fault!
● If the auxiliary heater runs several times over a prolonged period, the ve-
hicle b
attery may run flat. To re-charge the battery, drive the vehicle for a
long distance. In general: drive for as much time as the auxiliary heating
was working.
196
Driving
Start-Stop Function* Fig. 139 Detailed view of
the centr
e c
onsole: Start-
Stop function button.
In Start-Stop mode, the engine is automatically switched off when the vehi-
cle i
s at a standstill. The engine restarts automatically when required.
The function is enabled automatically whenever the ignition is switched on.
The instrument panel displays information on the current status.
Vehicles with a manual gearbox
● When the vehicle is at a standstill, leave it in neutral and take your foot
off the clut
ch. The engine switches off.
● Simply depress the clutch pedal to move off again.
Vehicl
es with an automatic gearbox
● When the vehicle is at a standstill, depress the brake or keep it pressed
down. The en
gine switches off.
● The engine will start again as soon as you release the brake pedal.
● With the gear lever set to P, the engine wi
ll not start until a range of
gears is selected or the accelerator pedal is depressed. Important conditions for the engine to automatically switch off
●
The driver seat belt must be buckled.
● The driver door must be closed.
● The bonnet must be closed.
● The factory-fitted towing bracket must not be electrically connected to a
trail
er.
● A minimum engine temperature has been reached.
● The vehicle has moved since the last stop.
● In vehicles with Climatronic: The temperature inside the vehicle is within
the preset
temperature range.
● The temperature set is neither very high nor very low.
● The air conditioning defrost function is not switched on.
● In vehicles with Climatronic: the blower has not been manually set to a
high speed.
● The pow
er level of the vehicle's battery is sufficient.
● The vehicle's battery temperature is neither too high nor too low.
● The vehicle is not on a steep gradient or slope.
● The front wheels are not overly turned.
● The heated windscreen is not switched on.
● Reverse gear is not engaged.
● The park assist system is not switched on.
Conditions
for automatically restarting the engine
The engine may automatically restart under the following conditions:
● If the vehicle interior is too hot or too cold.
● If the vehicle moves.
● If the vehicle's battery voltage drops.
Conditions
requiring the key to restart the engine
The engine must be started using the key under the following conditions:
226
Driving and the environment
Economic driving style Changing gear early
General
in
structions: The highest gear is always the most economical gear.
As a guideline, for the majority of vehicles: At a speed of 30 km/h, drive in
third gear, at 40 km/h in fourth gear and at 50 km/h in fifth gear.
In addition, skipping gears when shifting up helps to save fuel, weather and
traffic conditions permitting.
Do not wait until the last moment before changing gear. Only use first gear
when you move off and change to second gear quickly. Avoid the kick-down
function in vehicles with automatic gearbox.
Vehicles with a gear display help to achieve an economical driving style as
the display indicates the best moment to change gear.
Let the vehicle roll
If you take your foot off the accelerator, the fuel supply is stopped and con-
sumption is reduced.
Allow the vehicle to roll without accelerating, for example when approach-
ing a red traffic light. However, if the vehicle is rolling too slowly or the dis-
tance is too long, the clutch pedal should be pressed to declutch. The en-
gine will then operate at idle speed.
If the vehicle is going to be at a standstill for a period of time, switch off the
engine; for example, while waiting at a level crossing. In vehicles which
have the Start-Stop function on, the engine switches off automatically when
the vehicle is not moving.
Think ahead and “flow” with the traffic
Frequent acceleration and braking considerably increase fuel consumption.
If you think ahead as you drive and keep a safe distance from the vehicle in
front, it is possible to slow down by simply lifting your foot off the accelera-
tor. This eliminates the need for constant braking and acceleration. Calm and steady driving
Cons
tancy is more important than speed: The more you drive at a constant
speed, the lower the fuel consumption.
When driving on the motorway, it is more efficient to drive at a constant and
more moderate speed than to be continuously accelerating and braking. As
a general rule, you will reach your destination just as quickly when you drive
at a constant speed.
The cruise control function helps you to achieve a constant style of driving.
Moderate use of additional electrical appliances
It is important to travel in comfort, but convenience systems should be used
in an ecological manner.
Some equipment, when connected, increase fuel consumption considera-
bly, for example:
● Air conditioning cooling system: If the air conditioning system is re-
quired to c
ool to significantly lower temperatures than the true outside tem-
perature, it will require a large quantity of energy from the engine. There-
fore, we recommend that the selected temperature for the vehicle is not too
different to the outside temperature. It is a good idea to open all the win-
dows of the car before starting your journey, and to drive a short distance
with all the windows open to allow the vehicle to cool down slightly. Only
then should you close all the windows and switch on the air conditioning.
Keep windows closed when travelling at high speeds. Driving with the win-
dows open increases fuel consumption.
● Switch off the seat heating when the seats have warmed up.
● Switch off the heated rear window and the windscreen heating when the
window
s have demisted and are free of ice.
● Do not leave the auxiliary heater switched on when the vehicle is mov-
ing ⇒ p
age 163.
Index
A
Abro
a
d
Extended stay abroad with your vehicle . . 255
Sale of vehicle . . . . . . . . . . . . . . . . . . . . . . 255
ABS See "Braking assist systems" . . . . . . . . . . 189
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257
Acoustic warnings Headlights . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Adaptive headlights Dynamic . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
AdBlue Control lamp . . . . . . . . . . . . . . . . . . . . . . . . 271
Information . . . . . . . . . . . . . . . . . . . . . . . . . 272
Minimum quantity for a refill . . . . . . . . . . . 272
Refilling . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Specifications . . . . . . . . . . . . . . . . . . . . . . . 274
Tank filling capacity . . . . . . . . . . . . . . . . . . 272
Warning lamp . . . . . . . . . . . . . . . . . . . . . . . 271
Additional equipment . . . . . . . . . . . . . . . . . . . 258
Additional heater See "Auxiliary heater" . . . . . . . . . . . . . . . . 163
Adjusting passenger exterior mirror . . . . . . . . 112
Adjustment Correct sitting position . . . . . . . . . . . . . . . . 12
Electric front seat . . . . . . . . . . . . . . . . . . . . 115
Head restraints . . . . . . . . . . . . . . . . . . . . . . 123
Mechanical front seat . . . . . . . . . . . . . . . . 114
Rear seats . . . . . . . . . . . . . . . . . . . . . . . . . . 116 Seat with position memory . . . . . . . . . . . . 118
Steering wheel
. . . . . . . . . . . . . . . . . . . . . . 169
Adjustments Folding the backrest of the front passeng-er's seat . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Headlight range . . . . . . . . . . . . . . . . . . . . . 102
Aerial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
Aerial built into the window . . . . . . . . . . . . . . . 255
AFS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Airbag system . . . . . . . . . . . . . . . . . . . . . . . . 28, 31 Cleaning instrument panel . . . . . . . . . . . . 253
Curtain airbags . . . . . . . . . . . . . . . . . . . . . . . 37
Deactivating the front passenger airbag . . 35
Deactivating using the key switch . . . . . . . . 35
Description . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Differences between front passenger airbagsystems . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259
Front airbags . . . . . . . . . . . . . . . . . . . . . . . . 33
Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Knee airbag . . . . . . . . . . . . . . . . . . . . . . . . . 38
Locking the vehicle after airbag deploy- ment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259
Side airbags . . . . . . . . . . . . . . . . . . . . . . . . . 36
Use of child seats . . . . . . . . . . . . . . . . . . . . . 35
Vehicle care . . . . . . . . . . . . . . . . . . . . . . . . 253
Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 30
Air conditioning see "Climate control" . . . . . . . . . . . . . . . . . 155 Air recirculation mode . . . . . . . . . . . . . . . . . . . 161
Air vents
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Alarm system . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Alcantara . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251
All-wheel drive Snow chains . . . . . . . . . . . . . . . . . . . . . . . . 301
Winter tyres . . . . . . . . . . . . . . . . . . . . . . . . . 300
Alternator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289
Ambient lighting . . . . . . . . . . . . . . . . . . . . . . . 102
Anodized surfaces . . . . . . . . . . . . . . . . . . . . . . 247
Anti-lock brake system (ABS) . . . . . . . . . . . . . 189
Anti-theft locking bolts . . . . . . . . . . . . . . . . . . 305
Anti-theft wheel locking bolts . . . . . . . . . . . . . 307
Anti-tow system . . . . . . . . . . . . . . . . . . . . . . . . . 79
Anti-trap function Electric windows . . . . . . . . . . . . . . . . . . . . . . 91
Panorama sliding sunroof . . . . . . . . . . . . . . 94
Sunshade . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285
Antitheft alarm . . . . . . . . . . . . . . . . . . . . . . . . . . 78 Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
Antitheft alarm system Anti-tow system . . . . . . . . . . . . . . . . . . . . . . 79
False alarms . . . . . . . . . . . . . . . . . . . . . . . . . 80
Interior monitoring . . . . . . . . . . . . . . . . . . . . 79
Antitheft bolts . . . . . . . . . . . . . . . . . . . . . . . . . . 321
Armrests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Ashtray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 365
Index