Instruments and Indicator/Warning Lights
12
Engine revolutions counter
The start of the red zone in the revolutions counter ⇒page 11, fig. 2 indicates
the maximum permissible engine speed for all gears for an engine which has been
run in and operating at a normal temperatur e. You should shift into the next higher
gear before this red zone is reached, or move the selector lever into position D if
your car is fitted with an automatic gearbox.
One should shift to the next lower gear at the latest when the engine is no longer
running “smoothly”.
Avoid high engine speeds du ring the running-in period ⇒page 162.
Caution
The needle of the revolutions counter must on no account move into the red zone
of the scale - risk of engine damage!
For the sake of the environment
Shifting up early helps you save fuel and reduce the operating noise of your
vehicle.
Coolant temperature gauge
The coolant temperature gauge ⇒ page 11, fig. 2 operates only when the igni-
tion is switched on.
In order to avoid any damage to the engine , please pay attention to the following
notes regarding the temperature ranges:
Cold range
If the pointer is in the left-hand area of the scale it means that the engine has not
yet reached its operating temperature. Avoid running at high engine speeds, at full
throttle and at severe engine loads. The operating range
The engine has reached its operating temperature as soon as the pointer moves
into the mid-range of the scale. The pointe
r may also move further to the right at
high engine loads and high outside temper atures. This is not critical provided the
warning symbol
in the instrument cluster does not flash.
If the symbol
in the instrument cluster flashes it means that either the coolant
temperature is too high or the coolant level is too low. Please refer to the guide-
lines ⇒page 26, “Coolant temperature, Coolant quantity ”.
WARNING
Pay attention to the warning notes ⇒page 185, “Working in the engine
compartment” before opening the bonnet and inspecting the coolant level.
Caution
Additional headlights and other attached components in front of the fresh air inlet
impair the cooling efficiency of the coolant. There is then a risk of the engine over-
heating at high outside temperatures and high engine loads!
Fuel gauge
The fuel gauge ⇒page 11, fig. 2 only operates when the ignition is switched on.
The fuel tank has a capacity of ab out 62 litres. The warning symbol
in the instru-
ment cluster lights up when the pointer reaches the reserve marking. There are now
about 8 litres of fuel remaining in the tank. This symbol is a reminder for you, that
you must refuel .
The following will be displayed in the information display*: PLEASE REFUEL
A peep sounds as an additional warning signal.
A1
A2
A3
NKO B5 20.book Page 12 Friday, March 2, 2007 1:46 PM
Heating and air conditioning system93
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
Using the air conditioning system economically
The compressor on the air conditioning system uses power from the engine when
in cooling mode which will effect the fuel consumption.
It recommended to open the windows or th e doors of a vehicle for which the inte-
rior has been strongly heated through the ef fect of direct sunlight in order to allow
the heated air to escape.
The cooling system should not be switched on while travelling when the window is
open.
The desired interior temperature can also be achieved without switching in the
cooling system just by switching to fresh air mode.
For the sake of the environment
When you economize on fuel, you also reduce pollutant emissions.
Operational problems
If the cooling system does not operate at outside temperatures higher than +5 °C,
there is a problem in the system. The reasons for this may be:
•The fuse of the air conditioning system is defective ⇒page 220. Check the fuse,
replace it if necessary.
•The cooling system has switched off automatically for a short time because the
coolant temperature of the engine is too hot.
If you are not able to rectify the operat ional problem yourself, or if the cooling
capacity decreases, switch the cooling sy stem off. Contact a specialist garage.
Climatronic* (automatic air conditioning)
Description
The Climatronic system is a combination of an automatic heating, fresh air and
cooling system which provides optimal comfort for the occupants of the car.
The Climatronic maintains a constant temper ature fully automatically, once it has
been set. This is achieved by automa tically varying the temperature of the
outflowing air, the blower stages and the air distribution. It is not necessary to
manually alter the settings. The automatic mode ⇒ page 95 ensures maximum
wellbeing of the occupants at all times of the year.
Description of Climatronic system
The Climatronic can only operate if the following conditions are met:
•engine running,
•outside temperature above +5 °C,
•the button is not pressed.
If the Climatronic system is switched on, the temperature and air humidity drops in
the vehicle. The wellbeing of the occupants of the car is enhanced as a result of this
particularly at high outside temperatur es and a high air humidity. The system
prevents the windows misting up during the cold season of the year.
It is possible to briefly activate recirc ulated air mode in order to enhance the
cooling effect ⇒.
The heating effect is dependent upon th e coolant temperature, thus full heat
output only occurs when the engine has reached its operating temperature.
Puddle of water below car
After switching on the cooling Condensation from the evaporator of the air condi-
tioning may drip down and form a puddle below the vehicle. This is quite normal
and not an indication of a leak!
Switching over between degrees Celsius and degrees Fahrenheit
First of all press and hold the button ⇒page 94, fig. 109 and then press the
button . The temperature measur ing unit appears in the display.ECON
ECONAUTO
NKO B5 20.book Page 93 Friday, March 2, 2007 1:46 PM
