10 In BriefControl indicators w
Deflation detection system 3,
3 84, 3164.
r
Ultrasonic parking sensors 3,
fault,
3 162.
B
Adaptive driving light 3, fault,
3 112, 3117.
j
Manual transmission
automated 3, starting the
engine 3,
3 85, 3137.
!
Preheating system 3,
Diesel particle filter 3,
3 85.
Z
Exhaust gases 3,
3 85, 3156.
A
Engine electronics, transmission
electronics 3, immobiliser, diesel
fuel filter 3 , fault,
3 27, 386, 3142, 3148, 3156.
S Engine oil level 3
,
3 86, 3242.
I
Engine oil pressure,
386.
p
Alternator,
3
87.
p
Electro-hydraulic power
assisted steering,
387.
O
Turn signal lamps,
311, 387.
Y
Fuel level,
387, 390.
C
Main beam,
311, 387.
W
Coolant temperature,
387, 3244.
*
Deactivate front passenger
airbag systems,
375.
T
Winter setting for automatic
transmission
3 or automated
transmission 3,
3 140, 3146.
1
Manual transmission
automated SPORT mode
3,
3 139, 3146.
q
Headlamp range adjustment,
375.
8
Exterior lights,
388, 3108.
>
Fog lamps 3,
3 88, 3110.
v
Airbag systems, belt tensioners,
361, 374.
X
Seat belt 3,
3 89, 362.
r
Fog tail lamp,
388, 3110.
R
Brake system, clutch system,
389, 3167, 3246.
u
Anti-lock brake system,
3166.
v
Electronic Stability Programme
(ESP®
Plus
) 3 ,
3 151.
m
Cruise control 3,
3 161.
Back to overview
120 Climate controlClimate control
Picture no: 18203s.tif
Heating and ventilation system,
air conditioning system
3
Ventilation, heating and cooling 3 are
combined into one unit that is designed to
provide comfort regardless of the season,
weather or outside temperature.
When cooling 3 is activated, the air is
cooled and dried. The heating unit heats the air as required in
all operating modes depending on the
position of the temperature switch. The air
supply can be adjusted to suit
requirements by means of the fan.
Heating and ventilation system, air conditioning system 3...................... 120
Electronic climate control system 3... 121
Air vents ............................................... 122
Heating and ventilation system ......... 123
Air conditioning system 3................... 126
Electronic climate control system 3... 128
Auxiliary heater ................................... 134
Air intake .............................................. 135
Pollen filter ........................................... 135
Regular operation ............................... 135
Service .................................................. 135
Back to overview
129
Climate control
Data is shown on the information display.
Setting modifications are briefly shown in
the information display, superimposing
over the currently displayed menu.
May appear differently depending on the
type of display 394.
The climate control system settings are
stored in the vehicle key when the vehicle is
locked, see "Personalised key" 339.
Different settings are stored for each
remote control. Use of a remote control will
activate the settings associated with it.
Picture no: 18205s.tif
Manual settings such as operating without
cooling and air distribu tion can be selected
using the menu 3132.
When cooling (air conditioning
compressor) is active, air is cooled and
dehumidified.
The pollen filter removes dust, soot, pollen
and spores from the inflowing outside air.
Picture no: 18483s.tif
When set to automatic mode, the climate
control system provides the optimal
settings for almost all conditions. If
necessary, climate cont rol system settings
can be modified manually.
The climate control system is only
operational when the engine is running.
If you wish the climate control system 3 to
operate correctly, do not cover the sensor
on the instrument panel.
Cooling (air conditioning compressor)
switches off automati cally at low outside
temperatures.
FM AS [TP] REG CDin MP3
90.6
MHz
Back to overview
135
Climate control
Picture no: 18226s.tif
Air intake The air intakes in the engine compartment
in front of the windscreen must be kept free
of leaves, dirt and snow in order to provide
a supply of air.
Pollen filter The pollen filter cleans dust, soot, pollen
and spores from the air entering from
outside. The active carbon layer 3
eliminates most odours and noxious
environmental gases from the air.
Regular operationFor consistently good operation, the air
cooling system 3 must be switched on for
several minutes once per month regardless
of the weather and the time of year.
Operation not possible with the cooling
system switched on and when the outside
temperature is low. Service For optimal cooling performance, we
recommend that the climate control
system be checked annually, starting three
years after initial vehicle registration.
z Functionality and pressure test
z Heating functionality
z Leakage check
z Check of drive belts
z Cleaning of condenser and evaporator
drainage
z Performance check
Back to overview
150 Driving and operationSave energy – more kilometres
Please observe the running-in hints on the
previous page and the tips for saving
energy on the following pages.
Good, technically correct and economical
driving ensures maximum durability and
performance for your vehicle.
Overrun cut-off
The fuel supply is automatically cut off
during overrun, e.g. when the vehicle is
driven with a gear engaged but no throttle
application. Overrun cut-off is deactivated
if catalytic converter temperature is high.
Vehicles with turbocharged engine Flow-generated noises may be audible if
the accelerator is released quickly on
account of air flow in the turbocharger.
Engine speed
Drive in a low engine speed range for each
gear as much as possible. Warming up
After a cold start, the automatic
transmission
3 or manual transmission
automated 3 in automatic mode shifts into
higher gears at higher rpm. This allows the
catalytic converter to quickly reach the
temperature required for optimum pollutant
reduction.
Correct gear selection
Do not race your engine whilst in neutral or
with a low gear selected. Driving too fast in
individual gears as well as stop-and-go
traffic increases engine wear and fuel
consumption.
Change down
When decreasing speed, shift down into
the next lowest gear. Do not slip the clutch
with a high-revving engine. This is
especially important when hill climbing. Cooling fan
The cooling fan is controlled via a
thermoswitch and therefore only runs if
necessary.
The cooling fan automatically switches on
when the diesel particle filter is being
cleaned
3 depending on the engine.
Pedals
Do not place any objects in the foot well
which could slip under the pedals and
inhibit the pedal travel.
To ensure the pedal travel is uninhibited,
there must be no mats in the area of the
pedals.
Battery care
When driving slowly or when the vehicle is
stationary, e.g. in slow urban traffic, stop-
and-go traffic or traffic jams, turn off all
unnecessary electrical loads where
possible (e.g. heated rear window, heated
front seats, etc.).
Declutch when starting in order to relieve
the strain on the starter and the battery.
Back to overview
156 Driving and operation
Picture no: 18251s.tif
Control indicator
Z for exhaust
Illuminates when the ignition is switched on
and during the start attempt. Goes off
shortly after the engine starts running.
Illumination whilst the engine is running
indicates a fault in the emission control
system. The permissible emission limits
may be exceeded. Contact a workshop for
assistance immediately.
Illumination with the engine running
indicates a fault that can cause damage to
the catalytic converter. It is possible to
continue driving without causing damage
by slowing down until the flashing stops
and the control indicator illuminates.
Contact a workshop for assistance
immediately.
Picture no: 18231s.tif
Control indicator
A
for engine electronics
Illuminates for a few seconds after the
ignition is switched on.
If it illuminates when the engine is running,
there is a fault in engine or transmission
electronics. The electr onic system switches
to an emergency runni ng programme. Fuel
consumption may be increased and the
driveability of the vehicle may be impaired.
In some cases the fault can be remedied by
switching the engine off and starting it
again. If the control indicator continues to
illuminate whilst the en gine is running,
contact a workshop for assistance in
remedying the cause of the fault. If it illuminates briefly, but does not recur, it
is of no significance.
If
A lights up, this could mean that there
is water in the diesel fuel filter 3. A
message appears at the same time on the
service display 391. Have the fuel filter
checked for possible water contamination
by a workshop.
If it flashes after the ignition is switched on,
there is a fault in the immobiliser system.
The engine cannot be started 327.
Back to overview
209
Self-help, vehicle care
Picture no: 18588s.tif
Fuses and the most important
circuits they protectFuse box in engine compartment
The fuse box is at the front left side of the
engine compartment.
To open, disengage the cover, fold cover
up and remove.
Picture no: 18589s.tif Picture no:
No. Circuit
1 Starter
2 Air conditioning system
3 Diesel fuel filter heater
4 Horn
5 Manual transmission automated,
automatic transmission
6 Engine control unit
7 Fog lamps
8 Engine cooling
9 Engine cooling
No. Circuit
10 Automated manual transmission
11 Glow plugs, ignition system
12 Headlamp range adjustment,
Adaptive Forward Lighting
13 Air conditioning system
14 Automated manual transmission
15 Main beam (right)
16 Main beam (left)
17 Main relay
18 Engine control unit
Back to overview
212 Self-help, vehicle careBulb replacement Switch off the ignition and switch off the
relevant switch or close the doors.
Only hold a new bulb at the base! Do not
touch the bulb glass with your bare hands.
Replace the bulb, checking that the data
on the base matches that of the defective
bulb.
Picture no: 18422s.tif
To replace the bulb on the right-hand side,
remove the air hose from the air filter.
To replace the bulb on the left-hand side,
remove fuse box cover3209, and also
remove windscreen washer system
reservoir filler neck from above. Washing
fluid may escape if the reservoir is full to
the top.
Picture no: 18129s.tif
Halogen headlamp system Headlamp system has separate bulbs for
dipped beam 1 (outer bulbs) and main
beam 2 (inner bulbs).
Back to overview