106 Controls in detail
Seats
Red indicator lamps2 on AIRSCARF 
switch 1 show which heating level you 
have selected:
Switch on the ignition (page 37).Switching on
Press the AIRSCARF switch1 for the 
desired side.
All three indicator lamps 2 on 
respective AIRSCARF switch 1 come 
on. After a preheating time of approxi-
mately 7 seconds, the blower starts.
Press AIRSCARF switch 1 repeatedly 
until the desired AIRSCARF heating 
level for the corresponding seat is 
reached.Switching off
Press AIRSCARF switch1 repeatedly 
until all indicator lamps 2 on 
AIRSCARF switch 1 go out.
Level
3Three indicator lamps on 
(highest level).
2Two indicator lamps on.
1One indicator lamp on 
(lowest level).
offNo indicator lamp on.
iAfter switching off the AIRSCARF neck-level 
heating, the AIRSCARF fan continues to operate 
for approximately 10 seconds to cool down the 
heater elements.
iIf one or more indicator lamps2 on 
AIRSCARF switch 1 are flashing, there is insuf-
ficient voltage available since too many electri-
cal consumers are turned on. The AIRSCARF 
neck-level heating switches off automatically.
The AIRSCARF neck-level heating will switch 
back on again automatically as soon as sufficient 
voltage is available. 
331 Operation
Tires and wheels
Tire and loading terminology
Accessory weight
The combined weight (in excess of those 
standard items which may be replaced) of 
automatic transmission, power steering, 
power brakes, power windows, power 
seats, radio, and heater, to the extent that 
these items are available as 
factory-installed equipment (whether 
installed or not).
Air pressure
The amount of air inside the tire pressing 
outward on each square inch of the tire. 
Air pressure is expressed in pounds per 
square inch (psi), or kilopascal (kPa), or 
bars.
Aspect ratio
Dimensional relationship between tire 
section height and section width 
expressed in percentage.Bar
Another metric unit for air pressure. There 
are 14.5038 pounds per square inch (psi) 
to 1 bar; there are 100 kilopascals (kPa) 
to 1 bar.
Bead
The tire bead contains steel wires wrapped 
by steel cords that hold the tire onto the 
rim.
Cold tire inflation pressure
Tire inflation pressure when your vehicle 
has been sitting for at least three hours or 
driven no more than 1 mile (1.6 km). 
Curb weight
The weight of a motor vehicle with stan-
dard equipment including the maximum 
capacity of fuel, oil, and coolant, and, if so 
equipped, air conditioning and additional 
optional equipment, but without passen-
gers and cargo.DOT (Department of Transportation)
A tire branding symbol which denotes the 
tire meets requirements of the 
U.S. Department of Transportation.
GAWR (G
ross Axle Weight Rating)
The GAWR is the maximum permissible 
axle weight. The gross vehicle weight on 
each axle must never exceed the GAWR for 
the front and rear axle indicated on the 
certification label located on the driver’s 
door B-pillar.
GVW (G
ross Vehicle Weight)
The GVW comprises the weight of the 
vehicle including fuel, tools, spare wheel, 
installed accessories, passengers and 
cargo and, if applicable, trailer tongue 
load. The GWV must never exceed the 
GWVR indicated on the certification label 
located on the driver’s door B-pillar.