Inspecting and replenishing 190If the coolant level in the reservoir is too low, this is indicated by the warning light
in the instrument cluster
⇒page 29. We nevertheless recommend inspecting
the coolant level directly at the reservoir from time to time.
Loss of coolant
A loss of coolant is first and foremost an indication of a leak in the system. You
should not merely top up the coolant in the reservoir. It is also important to have
the cooling system inspected without delay by a specialist garage.
Losses can only occur through the pressure relief in the cap of the coolant expan-
sion bottle which is completely free of leaks if the coolant boils as a result of over-
heating and is forced out of the cooling system.
WARNING
Read and observe the warning notes ⇒page 185, “Working in the engine
compartment” before working in the engine compartment.
Caution
One should contact a specialist garage as soon as possible if the source of over-
heating itself cannot be determined and removed, since there may be grave
damage to the engine.Replenishing the coolant– Switch the engine off.
– Allow the engine to cool down.
– Place a cloth over the cap of the coolant expansion reservoir
⇒page 189, fig. 184 and unscrew the cap carefully by turning it to the
left ⇒.
– Top up the coolant.
– Screw the cap tight until it is heard to lock.
The coolant which you use for replenishing the system, must comply with one
specific specification ⇒page 189, “Coolant”. Do not use an alternative additive if
the coolant additive G12 PLUS - PLUS is not available in exceptional cases. Just top
up the system with water and as soon as possible arrange adjustment to correct the
mixing ratio of water and coolant additive again by a specialist garage.
Only use fresh coolant for topping up the system.
Do not fill up over the “MAX” marking! Excess coolant which is heated up is forced
out of the cooling system through the pressure relief valve in the cap of the coolant
compensation bottle.
Wait until the engine has cooled down for a system which has suffered a major loss
of coolant before pouring in coolant. This is necessary to avoid engine damage.
WARNING
•
The cooling system is pressurized! Do not open the cap of the coolant
expansion bottle if the engine is still hot - risk of scalding!
•
The coolant additive and thus all of the coolant is harmful to your health.
Avoid contact with the coolant. Coolant vapours are also harmful to the
health. It is important, therefore, to always safely store any coolant additive
in its original container out of the reach of children - risk of poisoning!
•
If any splashes of coolant get into your eyes, rinse out your eyes immedi-
ately with clear water and contact a doctor as soon as possible.
•
You should also consult a doctor without delay if you have inadvertently
swallowed coolant.Caution
Do not continue your journey if for some reason it is not possible under the
conditions prevailing to top up with coolant. witch the engine off and obtain
professional assistance from a specialist garage.
s3f4.1.book Page 190 Thursday, June 18, 2009 11:07 AM
Inspecting and replenishing191
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
For the sake of the environment
Do not re-use coolant if it is necessary to drain the coolant in the system. It should
be collected and disposed of in compliance with environmental protection
regulations.Radiator fan
The radiator fan may switch on suddenly.The radiator fan is driven by an electric motor and controlled by a thermostat
according to the coolant temperature.
The radiator fan may continue running for up to 10 minutes after the engine has
been switched off - even if the ignition is also off. It may also switch on suddenly
after a certain time, if•
the coolant temperature has risen because of an accumulation of heat or
•
the warm engine compartment is heated up additionally by strong sunlight.
WARNING
You must therefore be aware when working in the engine compartment that
the fan may switch on suddenly - risk of injury!
Brake fluidInspecting the brake fluid levelThe brake fluid reservoir is located on the left of the engine compartment.
The brake fluid reservoir on right-hand steering models is positioned on
the other side of the engine compartment.
– Switch the engine off.
– Open the bonnet ⇒ in “Working in the engine compartment” on
page 185.
– Inspect the brake fluid level in the reservoir ⇒fig. 185. The level must
be between the “MIN” and “MAX” markings.A slight drop in the fluid level results when driving due to normal wear-and-tear
and automatic adjustment of the brake pads, and is perfectly normal.
There may be an indication of a leak in the brake system, however, if the fluid level
drops significantly within a short time or if it drops below the “MIN” marking. A situ-
ation where the brake fluid level is too low is indicated by the warning light
lighting up in the instrument cluster ⇒page 33. In this case stop immediately and
do not drive any further! Obtain professional assistance.
Fig. 185 Engine compart-
ment: Brake fluid reservoir
s3f4.1.book Page 191 Thursday, June 18, 2009 11:07 AM
Fuses and light bulbs217
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
Note
We recommend that you have these fuses replaced by a specialist garage.Fuse assignment in the dash panelCertain electrical components are only standard on certain vehicle model versions
or only suppliable as optional equipment for certain models.
Fig. 205 Schematic repre-
sentation of the fuse box for
vehicles with left-hand
steering.Fig. 206 Schematic repre-
sentation of the fuse box for
vehicles with right-hand
steering.
No.
Power consumer
Amperes
1
Not assigned
2
Not assigned
3
Instrument cluster, headlight range adjustment
5
4
ABS control unit
5
5
Petrol engine: Brake light switch, cruise control system
5
6
Not assigned
7
Engine control unit 1.2 ltr.
15
8
Injection valves - 1.4 ltr.; 1.6 ltr.
10
9
Operating controls for the heating, control unit for air condi-
tioning system, parking aid, control unit for cornering lights
5
10
Not assigned
11
Electrically adjustable rear mirror, power windows
7,5
12
Reversing light
7,5
13
Engine control unit (for vehicles with automatic gearbox)
10
14
Motor for cornering lights
10
15
Navigation PDA
5
16
Electrohydraulic power steering, engine control unit - petrol
engine
5
17
Left parking light, licence plate light
5
18
Right parking light
5
19
Radio, central control unit
5
20
Engine control unit 1.4 ltr.; 1.9 ltr. - diesel engine
5
21
Brake lights
10
22
Operating controls for the heating, control unit for air condi-
tioning system, parking aid, mobile phone, instrument clus-
ter, steering angle sender, ESP, vehicle voltage control unit
7,5
s3f4.1.book Page 217 Thursday, June 18, 2009 11:07 AM
Fuses and light bulbs 21823
Lighting interior, storage compartment and luggage com-
partment
7,5
24
Tailgate lock
10
25
Seat heaters
20
26
Heatable windscreen washing nozzles, windscreen cleaning
system
15
27
Not assigned
28
Petrol engine: AKF valve, petrol engine: Control flap
10
29
Injection - 1.2 ltr. engine
10
30
Fuel pump - petrol engine
15
31
Lambda probe
10
32
Diesel engine: Switch for brake light and clutch pedal, cruise
control system, fuel pump relay and glow plug system relay
5
33
Engine control unit - diesel engine
30
34
Engine control unit 1.4 ltr.; 1.6 ltr.
30
Fuel pump - diesel engine
15
35
Lighting of the instrument cluster and the switch
5
36
Main beam light
15/5
a)
37
Rear fog light
7,5
38
Fog lights
10
39
Blower
30
40
Rear window wiper
10
41
Not assigned
42
Rear window heater
25
43
Horn
20
44
Front window wiper
20
No.
Power consumer
Amperes
45
Central control unit for convenience system
15
46
Not assigned
47
Cigarette lighter, power socket in the luggage compartment b)
15
48
ABS
15
49
Tu r n s i g n a l s
15
50
Radio, Telephone preinstallation, Multi-functional module
10
51
Electrical power window (front and rear) - left side
25
52
Electrical power window (front and rear) - right side
25
53
Electric sliding/tilting roof
25
54
Anti-theft alarm system
15
55
Not assigned
56
Headlight cleaning system
25
57
Left low beam, headlight range adjustment
15
58
Low beam on the right
15
a)Depending on headlight type - replace defect fuse by a new fuse of the same ampere
number.b)If the engine is switched off already one electrical component which is connected can dis-
charge the battery.No.
Power consumer
Amperes
s3f4.1.book Page 218 Thursday, June 18, 2009 11:07 AM
Index249
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data Exterior mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Exterior mirror heater . . . . . . . . . . . . . . . . . . . . . . . . . . 60
FFastening elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
First-aid box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Fixing net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Fog lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52, 224
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Fog lights with the function Corner . . . . . . . . . . . . . 53
Foldable luggage compartment cover . . . . . . . . . . . 71
Force limiter of the power windows . . . . . . . . . . . . 47
Front airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Front armrest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Front headlight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Diesel fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Petrol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Fuel consumption . . . . . . . . . . . . . . . . . . . . . . . . 21, 164
Saving energy . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Fuel reserve
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Full wheel trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
Fuse
Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
GGauges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Gearbox
mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
General view
Cockpit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Glass roof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Glow plug system . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29HHandbrake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Hazard warning light system . . . . . . . . . . . . . . . . . . . 54
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Head airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
Head restraint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Headlight cleaning system . . . . . . . . . . . . . . . . . . . . . 59
Headlight flasher . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Headlights
Fog lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Headlight cleaning system . . . . . . . . . . . . . . . . . 59
Heated windscreen washer nozzles . . . . . . . . . . . . 58
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Heating the front seats . . . . . . . . . . . . . . . . . . . . . . . . 64
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8IIgnition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Ignition lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100Immobiliser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Information display . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Instrument cluster . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Interior light
Luggage compartment . . . . . . . . . . . . . . . . . . . . 56
Interior lighting
front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Interior monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Intermittent wiping . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
ISOFIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
ISOFIX system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
JJacking points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
Jump-starting . . . . . . . . . . . . . . . . . . . . . . . . . . . 211, 212KKey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36LLashing eyes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Leather care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
Lifting jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Lighting of the interior of the vehicle
front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
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