
158Driving
Cruise speed* (Cruise control system)
Description
The cruise control system is able to maintain the set speed
in the range of 30 km/h (20 mph) to 180 km/h (110 mph).
Once the speed setting has been saved, you may take your foot off the ac-
celerator.
WARNING
It could be dangerous to use the cruise control system if it is not possible
to drive at constant speed.
● Do not use the cruise control system when driving in dense traffic, on
roads with lots of bends or on roads with poor conditions (with ice, slip-
pery surfaces, loose grit or gravel), as this could cause an accident.
● Always switch the cruise control system off after using it in order to
avoid an involuntary use.
● It is dangerous to use a set speed which is too high for the current
road, traffic or weather conditions. Risk of accident.
Note
The cruise control cannot maintain a constant speed when descending
downhill. The vehicle will accelerate due to its own weight. Use the foot
brake to slow the vehicle. Switching the cruise control system on and off
Fig. 111 Turn signal and
main beam headlight lev-
er: switch and rocker
switch for the cruise con-
trol
Switching on the cruise control system
– Move the control ⇒ Fig. 111 A
to the left to
ON.
Switching off the cruise control system
– Move the control A
to the right to
OFF or turn the ignition off
when the vehicle is stationary.
When the cruise control is on and a speed is programmed, the indicator
on the instrument panel is lit. 1)
If the cruise control system is switched off, the symbol is switched off.
The system will also be deactivated completely when 1st gear is selected.*
1)
Depending on the model version

159
Driving
Setting speed*
Fig. 112 Turn signal and
main beam headlight lev-
er: switch and rocker
switch for the cruise con-
trol
– Press the lower part SET of the rocker switch ⇒ Fig. 112 B
once
briefly when you have reached the speed you wish to set.
When you release the rocker switch, the current speed is set and held con-
stant. Adjusting set speed*
The speed can be altered without touching the accelerator or
the brake.
Fig. 113 Turn signal and
main beam headlight lev-
er: switch and rocker
switch for the cruise con-
trol
Setting a higher speed
– Press the upper part RES of the rocker switch ⇒ Fig. 113 B
to
increase the speed. The vehicle will continue to accelerate as
long as you keep the rocker switch pressed. When you release
the switch, the new speed is stored.
Setting a lower speed
– Press the lower part SET– of the rocker switch B
to reduce the
speed. The vehicle will automatically reduce its speed for as
long as you keep the switch pressed. When you release the
switch, the new speed is stored.
When you increase speed with the accelerator and then release the pedal,
the system will automatically restore the set speed. This will not be the
case, however, if the vehicle speed is more than 10 km/h (mph) higher than
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

160Driving
the stored speed for longer than 5 minutes. The speed will have to be stor-
ed again.
Cruise control is switched off if you reduce speed by depressing the brake
pedal. Reactivate the control by pressing once on the upper part of the rock-
er switch RES+ ⇒ Fig. 113 B
.
WARNING
It is dangerous to use a set speed which is too high for the current road,
traffic or weather conditions. Risk of accident.
Switching off cruise control temporarily*
Fig. 114 Turn signal and
main beam headlight lev-
er: switch and rocker
switch for the cruise con-
trol
The cruise control system will be switched off in the following situations:
● if the brake pedal is depressed,
● if the clutch pedal is depressed, ●
if the vehicle is accelerated to over 180 km/h (110 mph),
● when the lever A
is moved in the direction of
OFF without fully being
engaged.
To resume cruise control, release the brake or clutch pedal or reduce the ve-
hicle speed to less than 180 km/h (110 mph) and press once on the upper
part of the rocker switch RES ⇒ Fig. 114 B
.
WARNING
It is dangerous to use a set speed which is too high for the current road,
traffic or weather conditions. Risk of accident.
Completely switching off the system
Fig. 115 Turn signal and
main beam headlight lev-
er: switch and rocker
switch for the cruise con-
trol
Vehicles with a manual gearbox
The system is completely turned off by moving the control A
all the way to
the right hand side (OFF engaged), or when the vehicle is stationary, igni-
tion off.

225
If and when
Fuses on left side of dash panel
Fuses
NumberConsumerAmps1Power steering/Engine operation/Flow meter7,5
2
Diagnostics/Heater/Autoclimate/Climatronic/
Electric anti-dazzle mirror/Navigator/Air condi-
tioning pressure switch/ Climate fan/AFS Control
unit/Coming home relay/Soundaktor/CCS
10
3Petrol engine control unit/Diesel engine control
unit/Relay coils/Engine operation/Bi-turbo fuel
control unit5
4ABS-ESC Control unit/RKA Switch/Gateway con-
trol unit/ESC Relay/Rotation sensor10
5Reverse light/Heating nozzles106Instrument panel57Retro fog light/Start-Stop relays7,5
8Paddle levers on steering wheel for automatic
gearbox2
9Headlight lever/Windscreen wiper switch1010BCM Electronic control unit power supply511Airbag control unit512Automatic gearbox/ LPG system1013Exterior mirror control514Left-hand AFS headlights1515Right-hand AFS headlights1516Vacant 17Number plate light518Clean pump7,519Electronic control unit520Turn signals/Brake lights15
NumberConsumerAmps21Lights control, instrument panel522Heated mirrors5
23Engine injection module/Rain sensor/Automatic
gearbox lever/Main petrol relay7,5
24Luggage compartment light, interior light, glove
compartment light, side lights10
25Parking aid526Towing hook 27Headlight control528Lambda probe10
29Vacuum pump/LPG power supply/High-pressure
pump15, 20, 20 a)
30Engine solenoid coils/Additional heating relay/
Pressure sensor/AKF Valve10A
31Petrol engine operation/Glow plugs/Relay coil/
Electric fan/Secondary water pump relay/Flow-
meter10
32Engine control unit15, 20,
30 b)
33Clutch switch sensor/Additional heating relay
coil/ Servo sensor5
34Fuel control unit / Vacuum pump1535Vacant 36Main beam with/without AFS10, 15 c)
37Kombi/Coming Home relay/Main beam head-
lights relay10
38Engine heater3039Vacant 4012 Volt Input/Cigarette lighter1541Heated seats control unit / Cup Holder25
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

226If and when
NumberConsumerAmps42Horn2043Panoramic roof3044Windscreen wipers2045Heated rear window30
46Radio/Bluetooth/USB + AUX-In/DC-DC converter
for Start-Stop20
47Climatronic/autoclima/Diagnosis/Automatic
gearbox (ZSS lock)5
48Locking unit2549Front left window raiser2550Rear electric windows3051Right front window raiser2552Alarm15
53Electro-kinetic pump relay/bi-turbo fuel control
unit15
54Reverse light d)
/ Fog light/ Cornering light1555Transformer on15, 20 b)56Rear window wiper10
57Left daytime running light/ Turn signals/ Right
dipped beam/ Number plate light c)15
58Right daytime running light/ Rear fog light/ Left
dipped beam/ Main bean relay/ X Relay c)15
a)
If it is LPG.
b) Ampere rating according to motorisation.
c) If Start-Stop is installed, lights and/or AFS are automatically switched on.
d) Only with automatic transmission and/or Start-Stop, automatic light-on and/or AFS. Fuses below steering wheel in relay holder
PTC fuses
NumberConsumerAmps1Supplementary electrical heating using air402Supplementary electrical heating using air403Supplementary electrical heating using air40
AUX 1 Fuses
NumberConsumerAmps1Navigator, Bluetooth, MDI, radio control lever202Instrument panel/ESC Relay5
AUX 2 Fuses
NumberConsumerAmps1Headlight washer pump20
AUX 3 Fuses
NumberConsumerAmps1Trailer control unit152Trailer control unit203Trailer control unit20

227
If and when
Fuses in engine compartment above battery
Fig. 141 Fuses in engine
compartment
Non-metal fuses
NumberConsumerAmpsS1ABS ESC control unit25S2Electroblower climate heater/fan30S3Automatic gearbox control unit30S4Vacant S5Electronic control unit5S6Injection module30
Some of the electrical items listed in the table are only fitted on certain
models or are optional extras.
Please note that the above list contains all data at the time of going to
press, so it is subject to modifications. Bulb change
General notes
Before changing any bulb, first turn off the failed component.
Do not touch the glass part of the bulb with your bare hands. The finger-
prints left on the glass will vaporise as a result of the heat generated by the
bulb, causing a reduction in bulb life and condensation on the mirror sur-
face, thus reducing effectiveness.
A bulb must only be replaced by one of the same type. The type is indicated
on the bulb, either on the glass part or on the base.
Below, the light source used for all functions is broken down.
Double headlights - H7 Long Life
- H7
- W5W Long Life - PY 21W
Single headlight - H4 Long Life
- W5W Long Life - PY 21W
Dipped beam
Main beam
Side
Turn signal
Dipped/Main
Side
Turn signal
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

228If and when
Xenon 1)
//adaptive headlights*
- D1S2)
- LED 3)
- LED3)
- PY 21W
Fog light - H11
WARNING
● Take particular care when working on components in the engine com-
partment if the engine is warm. Risk of burns.
● Bulbs are highly sensitive to pressure. The glass can break when you
touch the bulb, causing injury.
● The high voltage element of gas discharge bulbs* (xenon light) must
be handled correctly. Otherwise, there is a risk of death.
● When changing bulbs, please take care not to injure yourself on sharp
parts in the headlight housing.
CAUTION
● Remove the ignition key before working on the electric system. Other-
wise, a short circuit could occur.
● Switch off the lights or parking lights before you change a bulb.
Dipped and full beam
Side
DRL (day light)
Turn signals
Fog light/cornering
For the sake of the environment
Please ask your specialist retailer how to dispose of used bulbs in the prop-
er manner.
Note
● Depending on weather conditions (cold or wet), the front lights, the fog
lights, the tail lights and the turn signals may be temporarily misted. This
has no influence on the useful life of the lighting system. By switching on
the lights, the area through which the beam of light is projected will quickly
be demisted. However, the edges may continue to be misted.
● Please check at regular intervals that all lighting (especially the exterior
lighting) on your vehicle is functioning properly. This is not only in the inter-
est of your own safety, but also that of all other road users.
● Before changing a bulb, make sure you have the correct new bulb.
● Do not touch the glass part of the bulb with your bare hands, use a cloth
or paper towel instead. Otherwise, the fingerprints left on the glass will va-
porise as a result of the heat generated by the bulb, they will be deposited
on the reflector and will impair its surface.
1)
With this type of headlight, the user can replace the turn signal bulb. Replacement of the
dipped/main beam bulb must be done by a Technical Service, given that complex elements
must be removed from the vehicle and the automatic control system that incorporates it
must be reset.
2) The Xenon bulbs discharge 2.5 times the light flux and have an average lifespan of 5 times
more than that of halogen bulbs, this means that, except due to unusual circumstances,
there is no need to change the bulbs for the whole life of the vehicle.
3) In the event that there is a fault in the LEDs, the complete headlight must be replaced.

229
If and when
Single headlight bulb change
Single headlight bulb
Fig. 142 Single head-
light
Side lights - Dipped beam/main beam.
Turn signal.
A
B
Turn signal bulb
Fig. 143 Single turn sig-
nal lamp
– Raise the bonnet.
– Turn bulb holder ⇒ Fig. 143 A
to the left and pull.
– Remove the bulb by pressing on the bulb holder and rotating at
the same time to the left.
– Installation involves the above steps in reverse sequence.
Safety FirstOperating InstructionsPractical TipsTechnical Specifications