climate control MERCEDES-BENZ E-Class COUPE 2012 C207 Owner's Guide

XTo open/close: turn thumbwheel = up or
down.
i Side window defroster vent : is never
completely shut, even if side air vent ; is
shut.
Setting the glove box air vent
When automatic climate control is activated,
the glove box can be ventilated, for instance
to cool its contents. The level of airflow
depends on the airflow and air distribution
settings.
! Close the air vent when heating the
vehicle.
At high outside temperatures, open the air
vent and activate the "cooling with air
dehumidification" function. Otherwise,
temperature-sensitive items stored in the
glove box could be damaged.
:Air vent thumbwheel;Air ventXTo open/close: turn thumbwheel :
clockwise or counter-clockwise.Setting the rear-compartment air
vents
Setting the center vents in the rear
compartment:Rear-compartment air vent thumbwheel;Rear-compartment air vent, right=Rear control panel for automatic climate
control 15?Rear-compartment air vent, leftXTo open/close:
turn thumbwheel : up or
down.
AIRSCARF, setting the vents
GWARNING
When operating the climate control, the air
that enters the passenger compartment
through the air vents can be very hot or very
cold (depending on the set temperature). This
could cause burns or frostbite to unprotected
skin in the immediate area of the air vents.
Always keep sufficient distance between
unprotected parts of the body and the air
vents. If necessary, use the air distribution
adjustment to direct the air to air vents in the
vehicle interior that are not in the immediate
area of unprotected skin.
15 Canada only.Setting the air vents141Climate controlZ

You can adjust the blower output of
AIRSCARF vents : using the AIRSCARF
button ( Y page 108).
142Setting the air ventsClimate control

Compass
Calling up the compass
To obtain a correct display in rear-view
mirror :, the compass must be calibrated
and the magnetic field zone must be set.
XPress button = briefly.
The compass shows which direction the
vehicle is currently traveling in: N, NE , E , SE ,
S , SW , W or NW.
Setting the compass
XDetermine your position using the following
zone maps.
North America zone map
South America zone map
XPress and hold button =(Y page 271) for
approximately three seconds.
The currently selected zone appears in
compass display ;(Y page 271).XTo select the zone: press
button =(Y page 271) repeatedly until the
desired zone is selected.
The zone has been selected when compass
display ;(Y page 271) shows the heading.
This takes a few seconds.
Calibrating the compass
XMake sure that there is sufficient space for
you to drive in a circle without impeding the
remaining traffic.
In order to calibrate the compass correctly,
observe the following points:
R calibrate the compass in the open and not
in the vicinity of steel constructions or high-
voltage transmission lines.
R switch off electrical consumers, for
example, the climate control, windshield
wipers or rear window defroster.
R close all doors and the trunk lid.
XSwitch the ignition on.XPress and hold button =(Y page 271) for
approximately six seconds until theFeatures271Stowing and featuresZ

iThe actual values for tires are specific to
each vehicle and may deviate from the
values in the illustration.
Maximum tire load : is the maximum
permitted weight for which the tire is
approved.
Further information on tire loads
( Y page 325).
Uniform Tire Quality Grading
Standards
Overview of Tire Quality Grading
Standards
The Uniform Tire Quality Grading is a U.S.
Government requirement. Their purpose is to
provide drivers with consistent and reliable
information regarding tire performance. Tire
manufacturers are required to grade tires
using three performance factors: tread
wear :, tire traction ;, and temperature
resistance =. Although not a Government of
Canada requirement, all tires made for sale in
North America have these grades branded on
the sidewall.
i The actual values for tires are vehicle-
specific and may deviate from the values in
the illustration.
Where applicable, the tire grading
information can be found on the tire sidewall
between the tread shoulder and maximum
tire width.
For example:Tread wearTractionTemperature200AAA
All passenger car tires must conform to the
statutory safety requirements in addition to
these grades.
Tread wear
The tread wear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified
U.S. government course. For example, a tire
graded 150 would wear one and one-half
times as well on the government course as a
tire graded 100.
The relative performance of tires depends
upon the actual conditions of their use,
however, and may depart significantly from
the norm, due to variations in driving habits,
service practices and differences in road
characteristics and climate conditions.
Traction
GWARNING
The traction grade assigned to this tire is
based on straight-ahead braking traction
tests, and does not include acceleration,
cornering, hydroplaning, or peak traction
characteristics.
The traction grades, from highest to lowest,
are AA, A, B, and C. Those grades represent
324Uniform Tire Quality Grading StandardsWheels and tires