CAUTION■The running auxiliary heater consumes fuel from the vehicle tank and auto-
matically controls the filling level. If only a low quantity of fuel is present in the
fuel tank, the auxiliary heating switches off.■
The exhaust pipe of the auxiliary heating, which is located on the underside
of the vehicle, must not be clogged and the exhaust flow must not be blocked.
■
If the auxiliary heating is running, the vehicle battery discharges. If the auxili-
ary heating and ventilation has been operated several times over a longer peri-
od, the vehicle must be driven a few kilometres in order to recharge the vehi-
cle battery.
■
The air inlet in front of the windscreen must be free (e.g. of ice, snow or
leaves) to ensure that the auxiliary heating operates properly.
Note
■ The auxiliary heating switches on the blower B » Fig. 125 on page 119 orC » Fig. 126 on page 119 only if it has achieved a coolant temperature of ap-
prox. 50 °C.■
At low outside temperatures, this can result in a formation of water vapour in
the area of the engine compartment. This is quite normal and is not an operat-
ing problem.
■
So that warm air can flow into the vehicle interior after switching on the aux-
iliary heating, you must maintain the comfort temperature normally selected
by you, leave the fan switched on and leave the air outlet vents in an open po-
sition. It is recommended to put the air flow in the position
or
.
Switching on/off
Fig. 127
Button for switching on/off the system directly on the operating
part of the air conditioning/Climatronic
Read and observe and on page 121 first.
The auxiliary heating can be switched on/off as follows.
Manually switching on Using the button on the operating part of the manual air conditioning/Cli-
matronic. The indicator light in the button illuminates » Fig. 127.
By using the radio remote control » page 123.
Manually switching off Using the button on the operating part of the manual air conditioning/Cli-
matronic. The indicator light in the button goes out » Fig. 127.
By using the radio remote control » page 123.
After switching the system off, the auxiliary heating will continue running a lit- tle while longer in order to burn the remaining fuel in the auxiliary heater.
After switching off the auxiliary heating, the coolant pump still runs for a short
period.
Switching on automatically
The auxiliary heater is switched on according to the Infotainment set-
tings » Infotainment manual , chapter Vehicle settings .
When automatic switching on is activated, the indicator light in the symbol
button lights up for about 10 seconds after the ignition is turned off.
Switching off automatically
Turning off the auxiliary heating occurs in the following cases.
› The switch-off time set in Infotainment has been achieved
» Operating in-
structions for Infotainment , chapter Vehicle settings .
› The fuel level has reached the reserve area (the warning icon
illuminates).
› The charge state of the vehicle battery has reduced too much
» page 200.
122Using the system
Washing by handRead and observe
and on page 180 first.
Soak the dirt with plenty of water and rinse as well as possible.
Clean the vehicle with a soft sponge, a washing glove or a washing brush.
Work from the top to the bottom – starting with the roof.
For stubborn dirt, agents specifically intended for this purpose are to be used. Wash out the sponge or washing glove thoroughly at short intervals.
Clean wheels, door sills and similar parts last. Use a second sponge for such areas.
Give the vehicle a good rinse after washing it and dry it off using a chamois
leather.
WARNINGProtect your hands and arms from sharp-edged metal parts when cleaning
the underfloor or the inside of the wheel housings or the wheel trims – risk
of cuts!
CAUTION
■ Only apply slight pressure when cleaning the vehicle's paintwork.■Do not wash your vehicle in bright sunlight – risk of paint damage.
Automatic car wash systems
Read and observe
and on page 180 first.
The usual precautionary measures must be taken before washing the vehicle
in an automatic car wash system (e.g. closing the windows and the sliding/tilt-
ing roof etc.).
If your vehicle is fitted with any particular attached parts, such as a spoiler,
roof rack system, two-way radio aerial etc., it is best to consult the operator of
the car wash system beforehand.
After an automatic wash with wax treatment, the lips of the wipers should be
cleaned with cleaning agents specially designed for the purpose, and then de-
greased.
CAUTIONFold in the exterior mirrors to prevent damage before washing the vehicle in
an automatic car wash system. Never manually fold in electric exterior mirrors -
always use the electric controls.
Washing with a high-pressure cleaner
Read and observe
and on page 180 first.
When washing the vehicle with a high-pressure cleaner, the instructions for
use of the equipment must be observed. This applies in particular to the pres-
sure used and to the spraying distance .
Maintain a sufficiently large distance to the parking aid sensors and soft mate-
rials such as rubber hoses or insulation material.
CAUTION
■ If washing the vehicle in the winter using a hose or high-pressure cleaner,
ensure that the jet of water is not aimed directly at the locking cylinders or the
door/panel joints – risk of freezing!■
To avoid damaging the parking aid sensors while cleaning with high-pressure
cleaners or steam jets, the sensors must only be directly sprayed for short pe-
riods while a minimum distance of 10 cm must be observed.
Note
See also Washing cars with decorative films using a high-pressure clean-
er » page 183 .
Cleaning vehicle exterior
Introduction
This chapter contains information on the following subjects:
Vehicle paint work
182
Plastic parts
182
Rubber seals
183
Chrome parts
183
Decorative films
183
Windows and external mirrors
183
Headlight glasses
184
Camera lens
184
181Care and maintenance
