134Heating and air conditioning
Air conditioning selection
Basic air conditioning control settings recommended for the corresponding
operating modes:
SettingsControl positionButtonAir vents 4ABC12
Windscreen and side window
defrosta)Required temper-
ature3 or 4Do not switch onSwitched on automat- icallyb)Open and direct towards
the side window
Heat as quickly as possibleClockwise as faras it will go3Switch on brieflyOffOpening
Mild heatingRequired temper- ature2 or 3 Do not switch onOffOpening
Heat as quickly as possibleAnti-clockwise as
far as it will goBriefly 4, then 2 or 3Switch on briefly c)IgnitionOpening
Optimum coolingRequired temper-
ature1 or 2, respec-tively. 3Do not switch onIgnitionOpen and direct towards the roof
Fresh air mode - blowerAnti-clockwise asfar as it will goRequired posi- tionDo not switch onOffOpening
a)This type of setting is not recommended in countries with high air humidity. The windows could cool too quickly and cause them to mist over on the outside.
b) The lamp in button 2 lights up, even if not all of the conditions for cooling system operations are met. Cooling is indicated as available once all of the conditions are met
⇒ page 132, General
notes.
c) In certain conditions, air recirculation mode can switch on automatically ⇒ page 134, a lamp lights up in the
button.
Note
● Controls A ⇒ Fig. 98 ⇒ page 132, B, C and buttons 1 and 2.
● Air vents 4 ⇒ page 129.
● We recommend you leave the air vents 3 ⇒ page 129 in the open posi-
tion. Air recirculationAir recirculation prevents unpleasant smells, e.g. when passing
through a tunnel or in queuing traffic, from entering the interior.
Switching on air recirculation mode
–
Press button
1 ⇒ Fig. 98 ⇒ page 132 and the lamp in the
button will light up.
135
Heating and air conditioning
Switching off air recirculation mode
– Press button
1 ⇒ Fig. 98 ⇒ page 132 again and the lamp
in the button will switch off.
If air distribution control C
⇒ Fig. 98 ⇒
page 132 is in position , air recir-
culation mode switches off automatically Press the button to switch air
recirculation mode back on in this position.
WARNING
Never use the air recirculation system for too long, as it prevents fresh air
from entering the vehicle and “used” air can cause tiredness, reduce your
attention span and cause the windows to mist over. This increases the
risk of an accident. Switch off the air recirculation system as soon as the
windows begin to mist over.
Climatronic* (automatic air conditioning) General notes
Climatronic automatically maintains a comfortable temperature. To do so, it
automatically regulates the supplied air temperature and the blower and air
distribution levels. The system also allows for the effect of sunlight, so there
is no need for manual adjustment. Automatic operations ⇒ page 136 guar-
antee maximum comfort any time of year.
Climatronic description
Cooling only works if the following conditions are met:
● The engine is running
● the outside temperature is above +2 °C (+36 °F)
● AC
18 ⇒ Fig. 99 ⇒ page 136 on. In order to ensure engines subject to heavy loads are cooled, the air condi-
tioning compressor is switched off in the event of high coolant tempera-
tures.
Recommended setting for all seasons
●
Set the required temperature, we recommend +22 °C (72 °F).
● Press the AUTO
button 12 ⇒
Fig. 99 ⇒ page 136.
● Adjust vents 3 ⇒ page 129 and 4 so that the air flow is directed slightly
upwards.
Change between degrees Centigrade and degrees Fahrenheit
Keep the AUTO
and AC buttons
⇒ Fig. 99 ⇒ page 136 pressed down at the
same time. The data is displayed on the screen in the units required.
Note
A visit to the specialised service once a year is recommended to clean the
Climatronic system.
Safety FirstOperating instructionsPractical TipsTechnical specifications
136Heating and air conditioning
Controls
Fig. 99 Climatronic: controls
Buttons/controls
Interior temperature setting
Display Selected interior temperature
Degrees Centigrade or Fahrenheit
Automatic air conditioning mode
Defrost or demist windscreen
Air flow direction
Air recirculation
Cooling on/off
Selected blower speed
Buttons/controls Set blower speed
Interior temperature sensor
1
23456789
1011
Automatic mode
Defrost or demist windscreen
Air distribution to windows
Air distribution to upper body
Air distribution to footwells
Air recirculation
Cooling on/off
Note
The interior temperature sensor 11 ⇒ Fig. 99 ⇒
page 136 is at the bottom.
Do not cover it with stickers or the like, as this could have a negative effect
on Climatronic operations.
Automatic mode
Automatic mode is used to maintain a constant temperature and
demist the windows inside the vehicle.
Switching on automatic mode
– Adjust to temperatures from +18 °C (+64 °F) to +29 °C (+84 °F).
– Adjust vents 3 ⇒ page 129 and 4 so that the air flow is directed
slightly upwards.
– Press the AUTO
button 12 ⇒
Fig. 99 and AUTO displayed on the
screen.
Automatic mode is switched off by pressing the air distribution buttons or
increasing or decreasing the blower speed. However, the temperature re-
mains regulated.
12
131415161718
137
Heating and air conditioning
Temperature selection
– When you switch on the ignition, control 1 ⇒ Fig. 99
⇒ page 136 can be used to set the required interior tempera-
ture.
The interior temperature can be adjusted between +18 °C (+64 °F) and
+29 °C (+84 °F). The temperature is regulated automatically within this
range. If a temperature below +18 °C (+64 °F) is selected, “LO” is displayed
on the screen. If a temperature above +29 °C (+84 °F) is selected, “HI” is
displayed on the screen. At both extremes, Climatronic works at maximum
cooling or heating power, respectively. The temperature is not regulated.
In the event of prolonged, irregular distribution of the air flow from the out-
lets (particularly the footwells) and significant differences in temperature,
e.g. on leaving the vehicle, sensitive people may catch a cold.
Air recirculation
Air recirculation prevents unpleasant smells, e.g. when passing
through a tunnel or in queuing traffic, from entering the interior.
Switching on air recirculation mode
– Press button
17 ⇒ Fig. 99 ⇒ page 136 and the
symbol
is displayed on the screen.
Switching off air recirculation mode
– Press button
17 ⇒ Fig. 99 ⇒ page 136 and the
symbol
disappears from the screen.
WARNING
Never use the air recirculation system for too long, as it prevents fresh air
from entering the vehicle and “used” air can cause tiredness, reduce your
attention span and cause the windows to mist over. This increases the
risk of an accident. Switch off the air recirculation system as soon as the
windows begin to mist over.
Note
If air recirculation mode remains on for 15 minutes, the symbol will
start to flash on the screen to indicate prolonged air recirculation. If air recir-
culation is not switched off, the symbol will continue to flash for 5 minutes.
Blower selection
Climatronic automatically regulates the blower speed according to
the interior temperature. It is possible, however, to set the blower
speed to suit requirements.
– Turn rotary control 10
⇒ Fig. 99 ⇒
page 136 anti-clockwise (de-
crease speed) or clockwise (increase speed).
Climatronic will switch off when the blower switches off.
WARNING
● “Used air” can cause tiredness, reduce attention spans and cause the
windows to mist over. This increases the risk of an accident.
● Do not switch off Climatronic for longer than necessary.
● Switch Climatronic back on as soon as the windows begin to mist
over.
Safety FirstOperating instructionsPractical TipsTechnical specifications
138Heating and air conditioning
Windscreen defrosting
Switching on windscreen defrosting
–Press button
13 ⇒ Fig. 99 ⇒ page 136.
Switching off windscreen defrosting
– Press button
13 ⇒ Fig. 99 ⇒ page 136 several times or
press the AUTO button.
The temperature is regulated automatically. The air output is increased from
vents 1 ⇒ page 129 and 2.
142Driving
● If the engine does not start after 10 seconds, turn the key back to posi-
tion 1
. Repeat the action after 30 seconds.
● Release the handbrake before moving off.
Switching off the engine
Stop the engine by turning the ignition key to position 1 ⇒ Fig. 101
⇒ page 141.
Brakes and brake servo systems Introduction
WARNING
● The brake servo only works when the engine is running. Braking
when the engine is switched off requires more strength on the brake ped-
al. Risk of accident!
● Press down on the clutch pedal when stopping and braking with a
manual gearbox, petrol engine vehicle at low speed. Otherwise, the
brake servo might not work properly. Risk of accident!
● In the event of damage to the standard front spoiler or where a differ-
ent front spoiler, hubcaps, etc. are subsequently fitted, make sure the air
vent to the brakes on the front wheels is not blocked. Otherwise, braking
operations may be impaired. Risk of accident!
● Always fully release the handbrake. If it is only partially released, this
will cause overheating of the rear brakes, which can impair the function
of the brake system. Risk of accident!
WARNING (Continued)
● Never leave children unsupervised in the vehicle. They could release
the handbrake or move the gear lever. The vehicle could start moving.
Risk of accident!
● Insufficient fuel can cause the engine to run irregularly or to switch
off. Brake assist systems could be impaired. Risk of accident!
● Always adjust your driving style to suit visibility, the weather and
road and traffic conditions. The best vehicle safety offered by brake as-
sist systems must never encourage you to run greater risks. Risk of acci-
dent!
CAUTION
● Observe the information concerning new brake pads ⇒ page 157.
● Where braking is not necessary, do not wear down the brake pads by
pressing down gently on the brake pedal. This causes the brakes to over-
heat, increasing their wear and increasing braking distances.
● To ensure the brake assist systems work properly, all wheels must be fit-
ted with tyres approved by the manufacturer.
Note
● If you brake suddenly and the brake system control unit regards the sit-
uation as hazardous for the drivers behind you, the brake lights will begin
to flash automatically. After reducing speed to approx. 10 km/h (6 mph) or
stopping the vehicle, the brake lights will stop flashing and the hazard
warning lights will switch on. The hazard warning lights are automatically
switched off when you accelerate or restart the vehicle.
● On long, steep gradients, reduce your speed and change to a lower gear
(manual gearbox) or move the selector lever to a lower gear position (auto-
matic gearbox). This uses the force of the engine and the brakes do not suf-
fer as much. If you still have to brake, do so intermittently, pressing down
repeatedly on the brake pedal.
143
Driving
● Vehicle modifications (e.g. to the engine, brakes, frame or a combina-
tion of wheels and tyres) could impair the brake assist systems
⇒ page 204, Accessories, modifications and spare parts.
● In the event of a fault in the ABS system, the ESC, ASR and EDL are
switched off automatically. A fault in the ABS is indicated by the
⇒ page 73 warning lamp.
Brakes
Wear
The rate of wear of the brake pads depends on the driving style and on the
way in which the vehicle is used. The brake pads will wear more quickly if
you use your vehicle frequently in urban traffic and short trips or drive in a
sporty style. Under these demanding conditions, visit your specialised serv-
ice, even before the scheduled service date, so that the thickness of the
brake pads can be measured.
Wet roads or road salt
If brakes are wet or frozen, or if you are driving on roads which have been
gritted with salt, braking power may set in later than normal. Dry the brakes
as soon as possible by braking repeatedly.
Corrosion
Long periods of inactivity and little use can lead to rust on the brake discs
and dirt on the brake pads. Where the brake system is subjected to light
stress or in the case of corrosion, clean the brake discs by braking fully sev-
eral times at a high speed.
Brake system fault
If you notice that the braking distance suddenly increases and the brake
pedal can be pressed down more fully, there may be a fault in the brake sys-
tem. Visit a specialised service immediately and adjust your driving style to
the extent of the damage and to limit the effect of the brakes. Low brake fluid level
Insufficient brake fluid could cause faults in the brake system. The brake flu-
id level is controlled electronically
⇒ page 70, Brake system .
Brake servo
The brake servo supplements the pressure you exert on the brake pedal.
The brake servo only works when the engine is running.
Handbrake
Fig. 102 Centre console:
handbrake
Applying the handbrake
– Pull the handbrake lever up all the way.
Releasing the handbrake
– Pull the handbrake lever up slightly and press the unlock button
at the same time ⇒ Fig. 102.
– Keep the button pressed down and push the lever all the way
down.
Safety FirstOperating instructionsPractical TipsTechnical specifications
155
Driving
● Engine at operating temperature
● Vehicle's battery sufficiently charged
● Vehicle not on a very steep slope
● Engine speed below 1200 rpm
● Vehicle's battery temperature is neither too high nor too low
● Sufficient brake system pressure
● Difference between outside temperature and set interior temperature
not too great
● Vehicle speed since last time the engine started was above 3 km/h (2
mph)
● Particulate filter ⇒ page 74 not being cleaned
● Front wheels not overly turned (steering wheel turned less than three
quarters of a turn)
Conditions for engine start up (Start phase)
● Clutch pedal pressed
● Max./min. temperature set
● Windscreen defrost function switched on
● High blower speed
● START-STOP button pressed
Conditions for automatic engine start up without driver involvement
● Vehicle moving at a speed of over 3 km/h (2 mph)
● Difference between outside temperature and interior temperature is too
great
● Vehicle's battery insufficiently charged
● Insufficient brake system pressure
If the driver seat belt is unfastened for more than 30 seconds in Stop phase,
the engine must be started using the ignition key. Please observe the mes-
sages on the general instrument panel display. Warnings on the instrument panel display (valid for vehicles not fitted with
an informative display)
FAULT: START-STOPFault in the START-STOP systemSTART-STOP IMPOSSIBLEEngine cannot be automatically shut
down
START-STOP ACTIVEAutomatic engine shut down (Stop
phase)
SWITCH OFF IGNITIONSwitch the ignition offSTART MANUALLYStart the engine manually
WARNING
● If the engine is switched off, neither the brake servo or the power
steering will work.
● Do not move the vehicle when the engine is switched off.
CAUTION
Switch off the START-STOP system ⇒ page 162 before driving through a
pool of water on the road.
Note
● The battery temperature may reflect the changes in outside temperature
after several hours. If the vehicle has been stopped outside at temperatures
below zero or in direct sunlight, for example, the battery temperature may
take several hours to reach the values required for the correct operating of
the START-STOP system.
● If the Climatronic system is operating automatically, this could impair
automatic engine shut down in certain conditions.
Safety FirstOperating instructionsPractical TipsTechnical specifications