
START/STOP
Fig. 88
Centre console: Button for the
START-STOP system
The START-STOP system helps you to save fuel while at the same time reducing
harmful exhaust emissions and CO 2 emissions.
The function is automatically activated each time the ignition is switched on.
In the start-stop mode, the engine automatically switches to the vehicle's idle
phase, e.g. when stopped at traffic lights.
Information regarding the current state of the
START-STOP system is indicated in
the display of the instrument cluster.
Automatic engine shut down (stop phase)
› Stop the vehicle (where necessary, apply the handbrake).
› Take the vehicle out of gear.
› Release the clutch pedal.
Automatic renewed engine restart (start phase).
› Depress the clutch pedal.
Switching the
START-STOP system on and off
The START/STOP system can be switched on/off by pressing the button » Fig. 88
.
When start-stop mode is deactivated, the warning light in the button lights up.
If the vehicle is in the stop phase when manually switching off the system, the
engine starts immediately.
The
START-STOP system is very complex. Some of the procedures are hard to
check without servicing. The general conditions for the proper functioning of the
START-STOP system are listed in the following overview. Conditions for the automatic engine shut down (stop phase)
› The gearshift lever is in Neutral.
› The clutch pedal is not depressed.
› The driver has fastened the seat belt.
› The driver's door is closed.
› The bonnet is closed.
› The vehicle is at a standstill.
› The factory-fitted towing device is not electrically connected to a trailer.
› The engine is at operating temperature.
› The charge state of the vehicle battery is sufficient.
› The stationary vehicle is not on a steep slope or a steep downhill section.
› The engine speed is less than 1
200 rpm.
› The temperature of the vehicle battery is not too low or too high.
› There is sufficient pressure in the braking system.
› The difference between the outdoor- and the set temperature in the interior is
not too great.
› The vehicle speed since the last time the engine was switched off was greater
than 3 km/h.
› No cleaning of the diesel particle filter takes place
» page 22.
› The front wheels are not turned excessively (the steering angle is less than 3/4
of a steering wheel revolution).
Conditions for an automatic restart (start phase) › The clutch is depressed.
› The max./min. temperature is set.
› The defrost function for the windscreen is switched on.
› A high blower stage has been selected.
› The START STOP button is pressed.
Conditions for an automatic restart without driver intervention
› The vehicle moves at a speed of more than 3 km/h.
› The difference between the outdoor- and the set temperature in the interior is
too great.
› The charge state of the vehicle battery is not sufficient.
› There is insufficient pressure in the braking system.
If the driver's seat belt is removed for more than 30 seconds or the driver's door is
opened during stop mode, the engine must be started manually with the key. The
following messages in the instrument cluster display must be observed. £
88 Using the system

Fuses in the dash panel
Fig. 142
Underside of the dash panel:
Distribution board cover. Fig. 143
Schematic representation of the fuse box for vehicles with left-
hand steering/right-hand steering
First read and observe the introductory information and safety warn-
ings on page 168.
The fuses are located on the left side of the dash panel behind a cover.
›
Carefully remove the cover in the direction of the arrow
» Fig. 142.
› After the fuse has been replaced, replace the cover in the dash panel in the op-
posite direction of the arrow so that the guide lugs are guided into the open-
ings of the dash panel. Close the cover until it clicks into place.
Fuse assignment in the dash panel No. Power consumer
1 S-contact
2 START-STOP, air-conditioning system
3 Instrument cluster, headlamp beam adjustment ä No. Power consumer
4 Control unit for ABS, button for START STOP5 Petrol engine: Speed regulating system
6 Reversing light (manual gearbox) 7 Ignition, engine control unit, automatic gearbox
8 Brake pedal switch, clutch pedal switch
9 Operating controls for the heating, control unit for air conditioning sys-
tem, parking aid, control unit for cornering lights, radiator fan, washing
nozzles
10 Windscreen Wiper and Washer System 11 Mirror adjustment
12 Control unit for trailer detection
13 Control unit for automatic gearbox
14 Motor for halogen projector headlights with cornering light function 15 PDA navigation system
16 Electrohydraulic power steering 17 START-STOP (radio), daylight driving light
18 Mirror heater 19 S-contact
20 Alarm 21 Reversing light, fog lights with the function CORNER
22 Operating controls for the heating, control unit for air conditioning sys-
tem, parking aid, mobile phone, instrument cluster, steering angle
sender, ESC, vehicle voltage control unit, multifunction steering wheel
23 Interior lighting, storage compartment and luggage compartment, side
lights
24 Central control unit 25 Seat heaters
26 Rear window wiper 27 Telephone preinstallation
28 Petrol engine: AKF valve, Diesel engine: Control flap 29 Injection, coolant pump
30 Fuel pump, ignition, Cruise control system, operation of PTC relay 31 Lambda probe £ 169
Fuses and light bulbs

No. Power consumer
32 High pressure fuel pump, pressure valve
33 Engine control unit
34 Engine control unit, vacuum pump 35 Power supply of ignition lock
36 Main beam 37 Rear fog light, DC/DC converter START-STOP
38 Fog lights 39 Air blower for heating
40-41 Not assigned 42 Rear window heater
43 Horn
44 Windscreen wipers 45 Central control unit for convenience system
46 Engine control unit, fuel pump 47 Cigarette lighter, power socket in the luggage compartment
48 ABS, START-STOP (DC/DC) converter ESP 49 Turn signal lights, brake lights50 START-STOP (DC/DC) converter infotainment, radio 51 Electrical power window (front and rear) - left side
52 Electrical power window (front and rear) - right side
53 Parking light = left side, electrical sliding/tilting roof
54 START-STOP (instrument cluster), alarm 55 Control unit for automatic gearbox
56 Headlight cleaning system, parking light - right side 57 Left low beam, headlight range adjustment
58 Low beam on the right Ð Fuses in the engine compartment
Fig. 144
Vehicle battery: Distribution board cover. Fig. 145
Schematic representation of
fuse box in engine compartment
First read and observe the introductory information and safety warn-
ings on page 168.
›
Press together the circlips in the fuse box cover at the same time in the direc-
tion of arrow A
» Fig. 144
and remove the cover in the direction of arrow B
.
› Release the fixtures in the openings C
using a flat screwdriver and fold the
cover upwards in direction of arrow D
.
Fuse assignment in engine compartment No. Power consumer
1 Generator
2 Not assigned
3 Interior
4 Electrical auxiliary heating system 5 Interior £ ä
170 Do-it-yourself

F
Fire extinguisher 158
First-aid kit 158
Floor mats 85
Front airbag 112
Front seats 49
Fuel 136
Diesel 138
Fuel gauge 9
gauge 9
refer to Fuel 136
Refuelling 136
Unleaded petrol 137
Fuel consumption 122
Fuses Assignment 168
Replacing 168
G
Gear Recommended gear 11
General view Cockpit 7
Glow plug system - indicator light 22
GSM 95
H
Handbrake 83
Head airbag 114
Headlight cleaning system Headlight cleaning system 46
Headlights Driving abroad 125
Headlight cleaning system 46
Head restraint 51Heating 71
Defrosting windows 72
Exterior mirror 48
Rear window 44
Recirculated air mode 72
Seats 50
Heating rear window 44
Horn 7
I
Ignition 81
Ignition lock 81
Immobiliser 80
Information display see MAXI DOT 15
Instrument cluster 8
Interior monitor 31
ISOFIX 119
J
Jacking points Raise vehicle 161
Jump-starting 165
L
Lever Main beam 42
Turn signal 42
Light Cockpit 43
Daylight driving light 39
Fog lights 40
Fog lights with the function CORNER 40
Halogen projector headlights with cornering light function 39
Hazard warning light system 42
Headlight beam adjustment 41
Headlight flasher 42Low beam 38
Main beam 42
Parking light 38, 39
Rear fog light 41
Replacing bulbs 171
Tourist light 40
Turn signal 42
Lights switching on and off 38
Warning lights 17
Loads 177
Lock Central locking system 28
Locking Emergency locking 32
Remote control 30
without central locking 26
Locking and unlocking from the inside 29
Luggage compartment variable loading floor 57
M
MAXI DOT 15
Main menu 15
Settings 15
Maximum speed 180
MDI 102
Mirror Additional interior mirror 47
Exterior mirror 48
Manual dimming interior mirror 47
Vanity 44
Mobile phone 95
Connecting to the hands-free system 97
Multifunction display Functions 12
Memory 12
Operation 13
Multimedia 101
188 Index

N
Net partition 58
O
Oil refer to Engine oil 141
Onboard computer see Multifunction display 12
Operation in winter De-icing windows 132
Diesel fuel 138
Vehicle battery 147
Outside temperature 13
Overview Engine compartment 140
Warning lights 17
P
Paint see Paint damage 131
Paint damage 131
Parking Parking aid 85
Parking ticket holder 69
Passive Safety 103
Periodic wiping 45
Petrol refer to Fuel 137
Polishing the paintwork refer to Taking care of your vehicle 131
Power steering 80
Preservation refer to Taking care of your vehicle 131
R
Radiator fan 144Radio reception
Aerial 132
Functional fault 132
Raise vehicle 161
Rear mirror Exterior mirror 48
Manual dimming interior mirror 47
Recirculated air mode Manual air conditioning system 75
Recommended gear 11
Refuelling 136
Fuel 136
Regulation Headlight beam 41
Remote control 29
Synchronisation process 30
Remote control key Replacing the battery 25
Replacement of parts 157
Replacing bulbs 171
Fuses 168
Vehicle battery 148
Windscreen wiper blade 46
Replenishing Coolant 143
Engine oil 141
Windscreen washer fluid 145
Roof luggage rack Attachment points 63
Roof rack system Roof load 63
Running in Brake pads 121
Engine 121
The first 1 500 km 121
Tyres 121
S
Safe securing system 27Safety 103
Child safety 117
Child safety seats 117
Head restraints 51
ISOFIX 119
TOP TETHER 119
Save electrical energy 122
Seat Adjusting 50
Seat belt Warning light 18
Seat belt height adjuster 110
Seat belts 107
Cleaning 135
fastening and unfastening 109
Height adjustment 110
Seats folding forward 52
Head restraints 51
Heating 50
Removing the seats 52
Selector lever see selector lever positions 91
Selector lever positions 91
Service display 10
Setting Manual air conditioning system 75
Manual dimming interior mirror 47
Steering wheel 80
Setting temperature Heating 71
Setting the clock Clock 11
Shifting Diving economically 122
Gearshift lever 85
Side airbag 113
Sliding/tilting roof see Electric sliding/tilting roof 36
Snow chains 156
189
Index