air conditioning AUDI A4 2018 Owners Manual

Warm and cold
Warm and cold
Climate control system
Description
The climate control system warms, cools and re­ moves humidity from the air in the vehicle interi­
or. It is the most effective when the windows and
sunroof * are closed. If there is a bui ld-up of heat
inside the vehicle, ventilation can he lp to speed
up the cooling process.
I n all heating mode f unctions except for
defrost,
the blower only switches to a higher speed once
the engine coolant has reached a sufficient tem­
perature .
Pollutant filt er
The po llutant filter removes poll utants such as
dust and pollen from the a ir .
Ke y recognit ion
The climate control settings are automatically
stored and assigned to the remote contro l key
that is in use .
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® For the sake of the environment
-If you would like to reduce fuel consump­
t ion, sw itch the air conditioning
off. This
will also reduce emissions.
- In veh icles with a diesel engine, you can
switch the auxiliary heater
off in the Info­
tainment system.
(D Tips
- To prevent interference with the heating
and cooling output and to prevent the win­
dows from fogging over, the air intake in
front of the windshie ld must be free of ice,
snow or leaves.
- Condensation from the cooling system can
dr ip and form a pudd le of water under the
vehicle . This is norma l and does not mean
there is a leak.
- The energy management system may tem­ porarily switch
off certain functions, such as
the seat heating* o r rear window defogger.
T hese systems are ava ilable again as soon
as the ene rgy supply has been restored.

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Care and cleaning
Component Situation Solution
T ex til es
Deposits adhering to Vacuum cleaner
art ifici al leat her, the surface
A lcan tara Water-based deposits Absorbent
cloth and mild soap solutiona>
such as coffee, tea,
b lood, etc.
Oil -based deposits Apply a m ild soap solution
a), blot away the dissolved o il or
such as oil, make-up, dye, treat afterward with water, if necessary
etc.
Special deposits such
Special stain remover, blot with absorbent material, treat
as ink, nail polish, la- afterward with mild soap solution, if necessary
a)
tex paint, shoe pol-
ish, etc.
Natu ral le ath er Fresh stains Cotton cloth with a mild soap so lution a>
Water-based deposits Fresh stains: absorbent cloth
such as coffee, tea, Dried stains : stain
remover suitable fo r leather
b lood , etc.
Oi l-based deposits Fresh stains: absorbent cloth and stain
remover suitable
such as oil, make-up, for leather
etc. Dried stains : grease dissolving spray
Special deposits such Spot remove r suitab le for leather
as ink, nai l polish, la-
tex paint, shoe pol-
ish, etc.
Care Regularly apply condit ion ing c ream that protects from
lig ht and penet rates into the material. Use specia lly-co l-
ored conditioning cream, if necessary .
Carbon part s Deposits clean the same way as plast ic parts
a) Mi ld soap solution: maximum two tablespoons of neutral soap in 1 q uart (1 liter) of water
.8, WARNING
The windshield may not be trea ted with wa­
ter-repelling windshield coating agents. Un ­
favorable cond itions such as wetness, dark­
ness, or low sun can result in increased glare.
Wiper blade chatter is also possible.
@ Note
- Headlight s/tail li ght s
-Never clean headlights or tail lights with a
dry cloth or sponge.
- Do not use any cleaning product that con­
tains alcohol, because they could cause
cracks to form.
- Whe els
-
- Never use a ny pa int polish or other abra­
sive materials .
- Damage to the protect ive layer on the
rims such as sto ne ch ips or scratches must
be repaired immediately .
-Sen sor s/camera l enses
- Neve r use warm or hot water to remove
snow or ice from the camera lens . This
could cause the lens to crack .
- Neve r use ab rasive cleaning materials or
a lcohol to clean the camera lens . This
could cause scratches and cracks .
-Door window s
-Remove snow and ice on windows and ex-
terior mirrors w ith a plast ic scraper . To
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