Menu overview
Diagrams This is what the displays look like when you scroll through the menus.
Generic terms The illustration shows the menus on a vehicle
with Audio 15.
On Sound 5/Audio 20, the on-board com-
puter always shows the AUDIOandTEL (tele-
phone) menus in English. This is the case even
if a different language is selected for the dis- play. Operation
0043
Operation menu (Y
page 186)
R Standard display
R Calling up the service due date
(Y page 258)
R Tire pressure monitor
(Y page 291)
R Checking the engine oil level
(Y page 250) 0044
Audio menu (Y
page 187) 0087
Message memory menu
(Y
page 198) Operation
0085
Settings menu (Y
page 188) 0083
Trip computer menu (Y
page 195) 0084
Telephone menu (Y
page 196) i
The generic terms in the tabular overview
should make orientation easier for you.
However, they are not always shown on the display. Operation menu
Overview You can select the following functions in the
Operation
menu by pressing the 0063
or 0064 button on the steering wheel: 186
On-board computer (vehicles with steering wheel buttons)On-board computer and displays
TWR (permissible trailer drawbar load)
The TWR is the maximum permissible weight
that may act on the ball coupling of the trailer tow hitch.
Wear indicator
Narrow bars (tread wear bars) that are dis-
tributed over the tire tread. If the tire tread is level with the bars, the wear limit of 00CDin
(1.6 mm) has been reached.
Distribution of the vehicle occupants
The distribution of vehicle occupants over
designated seat positions in a vehicle.
Maximum permissible payload weight
Nominal load and goods/luggage load plus
68 kg (150 lbs) multiplied by the number of
seats in the vehicle. Flat tire
General notes
If your vehicle is equipped with a spare wheel, the spare wheel is under the rear of the vehi-
cle (Y page 312).
Information about installing a wheel can be
found in the "Wheel change" section
(Y page 306).
When you replace a tire, we recommend that
you also replace the tire valve. Please observe
the safety-relevant information on tire valve
(Y page 290). Changing wheels
Rotating the wheels
G
WARNING
Interchanging the front and rear wheels may
severely impair the driving characteristics if
the wheels or tires have different dimensions. The wheel brakes or suspension components
may also be damaged. There is a risk of acci-
dent. Rotate front and rear wheels only if the wheels
and tires are of the same dimensions.
! On vehicles equipped with a tire pressure
monitor, electronic components are loca-
ted in the wheel.
Tire-mounting tools should not be used
near the valve. This could damage the elec- tronic components.
Only have tires changed at a qualified spe-cialist workshop.
Always observe the instructions and safety
notes in the "Mounting a wheel" section
(Y page 306).
The wear patterns on the front and rear tires
differ, depending on the operating conditions. Rotate the wheels before a clear wear pattern
has formed on the tires. Front tires typically
wear more on the shoulders and the rear tires in the center.
If your vehicle's tire configuration allows, you can rotate the wheels according to the inter-
vals in the tire manufacturer's warranty book
in your vehicle documents. If no warranty
book is available, the tires should be rotated
every 3,000 to 6,000 miles (5,000 to
10,000 km), or earlier if tire wear requires. Do
not change the direction of rotation.
Clean the contact surfaces of the wheel and
the brake disc thoroughly every time a wheel
is rotated.
Check the tire pressure and reactivate the tire pressure monitor if necessary. Diagram showing tire rotation for single and dual
tires Changing wheels
305Wheels and tires Z
