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 computer
always shows the AUDIOandTEL (telephone)
menus in English. This is the case even if a dif-
ferent language is selected for the display.
Operation
:Operation menu (Ypage 165)
RStandard display
RCalling up the service due date
(Ypage 227)
RTire pressure monitor (Ypage 254)
RChecking the engine oil level
(Ypage 221)
;Audio menu (Ypage 166)
=Message memory menu (Ypage 175)
?Settings menu (Ypage 167)
ATrip computer menu (Ypage 173)
BTelephone menu (Ypage 173)
iThe generic terms in the tabular overview
should make orientation easier for you. How-
ever, they are not always shown on the dis-
play.
Operation menu
Overview
You can select the following functions in the
Operation menu by pressing the 9or:
button on the steering wheel:
RDisplaying the trip odometer and odometer
(standard display) (Ypage 166)
RDisplaying the coolant temperature
(Ypage 166)
RCalling up the service due date
(Ypage 227)
RTire pressure monitor (Ypage 254)
RChecking the oil level (Ypage 221)
On-board computer (vehicles with steering wheel buttons)165
On-board computer and displays
Z
Flat tire
General notes
If your vehicleis equipped wit h aspar ewheel,
th espar ewhee lis under th erear of th evehicl e
(
Ypage 273).
Information about installin g awhee lcan be
foun din th e"Whee lchange" section
(
Ypage 268).
Changing wheels
Rotating the wheels
GWARNIN G
Interchangin gth efron tand rear wheels may
severely impair th edriving characteristics if
th ewheels or tires have different dimensions.
The whee lbrakes or suspension component s
may also be damaged. Ther eis aris kof acci-
dent.
Rotate fron tand rear wheels only if th ewheels
and tires are of th esam edimensions.
!On vehicles equipped wit h atire pressur e
monitor, electronic component sare locate d
in th ewheel.
Tire-mounting tools should no tbe used near
th evalve. This could damag eth eelectronic
components.
Only have tires changed at aqualified spe-
cialist workshop.
Always observ eth einstruction sand safet y
note sin th e"Mounting awheel" section
(
Ypage 268).
The wear pattern son th efron tand rear tires
differ, depending on th eoperating conditions.
Rotate th ewheels before aclear wear pattern
has formed on th etires .Fron ttires typically
wear mor eon th eshoulder sand th erear tires in
th ecenter.
If your vehicle's tire configuration allows ,you
can rotate th etires according to th eintervals in
th etire manufacturer' swarrant ybook in your
vehicl edocuments .If no warrant ybook is avail-
able, th etires should be rotate devery 3,000 to
6,000 mile
s(
5,00 0to 10,00 0km), or earlier if
tire wear requires. Do no tchang eth edirection
of rotation . Clean th
econtact surface sof th ewhee land th e
brak edisc thoroughly every time awhee lis rota-
ted.
Chec kth etire pressur eand reactivat eth etire
pressur emonitor if necessary.
Diagram showin gtir erotation for single and dual
tires
Single tires: if thetires are of identical dimen-
sions, you can rotate bot hwheels on bot hth e
fron tand rear axle sso that th etires 'original
direction of rotation is maintained. On unidirec -
tional tires ,an arrow on th esidewall shows th e
prescribe ddirection of rotation of th etire.
Twin rea rtires: if thetires are of identical
dimensions, you can rotate th ewheels on th e
fron taxle and th einner wheels on th erear axle
in pair ssuc hthat th eoriginal direction of tire
rotation is retained. Wit hunidirectional tires ,
you may rotate th eoutside wheels at th erear
axle from on eside to th eother .
Direction of rotation
Tires wit h aspecifie ddirection of rotation have
additional benefits ,e.g. if there is aris kof hydro-
planing .You will only gain these benefits if th e
correct direction of rotation is observed.
An arrow on th esidewall of th etire indicates it s
correct direction of rotation .
You may moun t aspar ewhee lagainst th edirec-
tion of rotation .Observ eth etime restriction on
use as well as th espee dlimitation specifie don
th espar ewheel.
Storing wheels
Store wheels that are no tbein gused in acool,
dry and preferably dark place. Protect th etires
from contact wit hoil, grease and fuel .
Changing wheels267
Wheels and tires
Z
