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UNDERSTANDING YOUR INSTRUMENT PANEL 115
4
ENGINE OIL LEVEL INDICATOR IN INSTRUMENT
CLUSTER
(VEHICLES WITHOUT ASSYST MAINTENANCE
COMPUTER)If the : indicator lamp lights up when the engine is
running, the engine oil level has dropped to the
minimum mark. Check the engine oil level without
delay and add engine oil up to the upper mark on the
dipstick.
If there is no engine oil in the oil sump, a warning
buzzer will sound if the key is turned to position 2 in
the ignition lock or if the vehicle is being driven, and
the warning
will appear in the multi-function indicator. About 2
quarts (1.9 liters) of oil must be added.
Check the engine oil level without delay and add
engine oil to the upper mark on the dipstick.
NOTE: Engine oil level display– "qt" in USA only.
– "l" in Canada only.
Symb
N00.00-2384-00
qt
CAUTION!
If the : indicator lamp lights up, the warning
symbol in the multi-function indicator appears
and the warning buzzer sounds, the operating
safety of the engine is endangered (possibility of
engine damage).
Safely pull off the road and turn off the engine (do
not restart the engine). Determine the cause of the
problem. If there are no obvious signs of leakage,
add engine oil. The engine oil level must be
between the lower and upper marks on the
dipstick. Only add engine oil up to the upper
mark – do not overfill.
If the engine oil level is above maximum, there is
a danger of damage to the engine or catalytic
converter.
Page 116 of 288
116 UNDERSTANDING YOUR INSTRUMENT PANELHEATING, VENTILATIONTemperature control (1)
Airflow control (2)
Air distribution control (3) Z
Air to the windshield and from the air vents
X Air to the windshield and footwell and from
the air vents
Y Air to the footwell and from the air vents
h Air from the air vents
NOTE: If the vehicle interior has been heated up by
intense sunlight, ventilate the interior briefly before
driving the vehicle.
Only with automatic heater control (Optional):
The selected temperature is reached as quickly as
possible in heater mode and then held constant.
WARNING!
Follow the recommended settings for heating and
cooling given on the following pages. Otherwise
the windows could fog up, impairing visibility
and endangering you and others.
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UNDERSTANDING YOUR INSTRUMENT PANEL 117
4
Ventilation1. Set the airflow control (2) to position 3 or 4.
2. Set the temperature control (1) as illustrated (heater switched off).
3. Set the air distribution control (3) to h.
NOTE: Adjust the air vents as required, refer to "Side
Air Vents and Center Air Vents".
Air Recirculation1. Air recirculation indicator lamp
2. Air recirculation button
To switch on air recirculation:
Press the air recirculation button – the indicator lamp lights up.
To switch off air recirculation:
Press the air rescirculation button again – the indicator lamp goes out.
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UNDERSTANDING YOUR INSTRUMENT PANEL 121
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Heated Rear Window (Optional)
The switch for the heated rear
window is located on the right-hand
side next to the steering column.
It can be used only when the engine
is running.
To switch it on:
Press upward; the indicator lamp in the switch will light up.
To switch off:
Press upward one more time.
NOTE: The heated rear window will automatically
switch off after about 15 minutes or when the engine is
turned off.
Windshield Heater (Optional)
The switch for the windshield heater
is located on the center section of the
dashboard.
It can be used only when the engine
is running.
To switch it on:
Press upward; the indicator lamp in the switch will light up.
To switch off:
Press upward one more time.
NOTE: The windshield heater will automatically
switch off after about 5 minutes or when the engine is
turned off.
Page 122 of 288

122 UNDERSTANDING YOUR INSTRUMENT PANELResidual Engine Heat Utilization (REST)
The REST switch (1) is located on the
center section of the dashboard.
The residual engine heat utilization
system can be used to keep the
vehicle interior warm for some time
after the engine is switched off.
Turn the key to position 0 in the ignition lock or
remove it altogether.
To switch on:
1. Press the residual engine heat utilization switch (1), the indicator lamp (2) lights up.
The blower will run at speed 1 regardless of the
setting of the airflow control.
2. Set the temperature control as required, refer to "Heating, Ventilation".
To switch off:
Press the residual engine heat utilization switch (1)
again, the indicator lamp (2) goes out. The residual engine heat utilization is automatically
switched off if:
1. the key is turned to position 2 in the ignition lock,
2. after about 30 minutes,
3. if the battery voltage is too low.
AIR CONDITIONING, REGULATED (OPTIONAL)
The air conditioning switch (1) is
located on the center section of the
dashboard.
The air conditioning can be used to
cool or dehumidify the air in the
vehicle. The selected temperature is
reached as quickly as possible and
then held constant.
The air conditioning is only operational when the
engine is running.
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UNDERSTANDING YOUR INSTRUMENT PANEL 123
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To switch on:
Press switch (1), the indicator lamp (2) in the switch
lights up.
To switch off:
Press switch (1) again, the indicator lamp (2) goes out.
NOTE : Run the air conditioning at least once a month
for about 10 minutes.
It is possible that the air conditioning will
automatically switch off at outside temperatures below
41 °F (+5 °C). Dehumidification is then also not
possible.
Condensation may emerge from the underside of the
vehicle.
The air conditioner only uses the refrigerant R-134a.
This refrigerant does not damage the earth’s ozone
layer.
Climate Control (on Vehicles with Air Conditioning)1. Set the airflow control (2) to position 1 to 4. Position 4 gives maximum cooling.
2. Set the temperature switch (1) as required (The interior temperature is regulated by the
Tempmatik. If the interior temperature falls below
the preset temperature, warm air is automatically
supplied).
3. Set the air distribution control (3) to h.
4. To switch on air conditioning, press switch (4).
WARNING!
While driving, deactivate the air conditioning
only temporarily to prevent window fogging.
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126 UNDERSTANDING YOUR INSTRUMENT PANELTo switch it on:
1. Press switch (1) on air conditioning, regulated. The indicator lamp (2) will light up.
2. Operate the airflow switch (3). Blower level 1, press the airflow switch (3)
upwards; the left-hand indicator lamp will light up.
Blower level 2, press the airflow switch (3)
downwards; the right-hand indicator lamp will
light up.
3. Set temperature control (4) as needed. Increase cooling turn upwards.
Decrease cooling turn downwards.
To switch off:
1. Switch the airflow switch (3) to the center position.
2. Press switch (1) air conditioning, regulated; the indicator lamp (2) will go out.
Air RecirculationRecirculation mode can now be assisted by the air
conditioner for rear passenger compartment.
To switch it on:
Operate the airflow switch (3)
Blower level 1, press the airflow switch (3) upwards;
the left-hand indicator lamp will light up.
Blower level 2, press the airflow switch (3)
downwards; the right-hand indicator lamp will light
up.
To switch off:
Switch the airflow switch (3) to the center position.
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UNDERSTANDING YOUR INSTRUMENT PANEL 129
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HEATER BOOSTER
The switch (1) for activating the
heater booster system is located in
the center section of the dashboard.
The heater booster system can be
switched on while the vehicle is
being driven to help the engine to
reach its normal operating
temperature more quickly, which
will help to heat up the passenger compartment as
quickly as possible when the heating is switched on. To switch on with the engine running:
Press switch (1), the indicator lamp (2) lights up.
To switch off:
Press switch (1) again or switch the engine off. The
heater booster will then switch to run-on mode (about
2minutes).
NOTE:
When the vehicle is being driven and a coolant
temperature of over 185 °F (+80 °C) is reached, the
heater booster system will switch to regulation mode.
If the coolant temperature drops to below 167 °F
(+75 °C) with the heater booster system switched on,
heat output is increased again.
If the key is turned to position 0 in the ignition lock
(run-on for about 2 minutes), the last setting selected at
switch (1) is retained when the engine is restarted
(memory function).
The operation of the heater booster system is usually
not required at outside temperatures above 41 °F
(+5 °C).