R
Furthermore, the use of cer tain tyre types in
cer tain regions and areas of operation can be
high lybene/cial.
R Only use tyres and wheels of the same type
(summer tyres, winter tyres, MOExtended
tyres) and the same make.
R Only /t wheels of the same size on one axle
(leT and right).
It is only permissible to/t a di.e rent wheel
size in theev ent of a 0at tyre in order todrive
to the specialist workshop.
R Do not make any modi/cations tothe brake
system, the wheels or the tyres.
The use of shims or brake dust shields is not
permitted and may in validate theve hicle's
ge neral ope rating permit.
R V
V ehicles wit ehicles wit h a tyr
h a tyre pr
e pressur
essur e monit
e monit or
oring sy
ing sy s-
s-
t
t em:
em: all /t tedwheels must be equipped with
functioning sensors forth e tyre pressure mon-
itoring system.
R Attemp eratures below 7 °C use winter tyres
or all-season tyres mar kedi M+Sfor all
wheels. Wi
nter tyres pr ovide the best possible grip in
wintry road conditions.
R For M+S tyres, only use tyres with the same
tread.
R Obser vethe maximum permissible speed for
th e M+S tyres /t ted.
If th e tyre's maximum speed is below that of
th eve hicle, this must be indicated byan
appropriate label in the driver's /eld of vision.
R Run in new tyres at moderate speeds forthe
/r st 100 km.
R Replace the tyres aTer six years at the latest,
re ga rdless of wear.
R When r
When r eplacing wit
eplacing wit h tyr
h tyres t
es that do no
hat do no t f
t featur
eatur e
e
r
r un-0at
un-0at c
char
har act
acter
eris
istics:
tics: vehicles with
MOExtended tyres are not equipped with a
TIREFIT kit at thefa ctor y.Equip theve hicle
with a TIREFIT kit aTer replacing with tyres
th at do not feature run-0at characteristics,
e.g. winter tyres.
% You can permanently limit the maximum
speed for driving with winter tyres
(/ page 196). Fo
r more information on wheels and tyres, con-
ta ct a quali/ed specialist workshop.
Be sure toalso obser vethefo llowing fur ther rela-
te d subjects:
R Notes on tyre pressure (/ page 338)
R Tyre pressure table (/ page 339)
R Notes on the emer gency spa rewheel
(/ page 352) N No
ot
tes on int
es on int erc
erchanging wheels
hanging wheels &
W
WARNING
ARNING Risk of injury thro ugh di.erent
wheel sizes
Inter changing the front and rear wheels can
se verely impair the driving characteristics.
The disk brakes or wheel suspension compo-
nents may also be damaged. #
Only inter change the front and rear
wheels if the wheels and tyres ha vethe
same dimensions. Wheels and tyres
345
345
Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
Front-passenger airbag dis-
abled See Owner's Manual *T
he front passen ger airbag has been disabled even though an adult or a person of adult build is on the front passenger
seat. If additional forc es are applied tothe seat, thewe ight the system de tects may be too lo w. &
W WARNI NG
ARNI NG‑ Risk of injury or evenfata l injury when the front passenger airbag is disabled
If th e front passenger airbag is disabled, It will not be deplo yed in theev ent of an accident and cannot per form its
intended pr otective function.
A person in the front passenger seat could then, forex ample, come into contact with theve hicle interior, especially
if th e person is sitting too close tothe dashboard. #
Beawa reofthe status of the front passenger airbag bo thbefore and during the journe y. #
Stop theve hicle immediately in accordance with the tra1c conditions. #
Make sure that no objects are trapped under the front passenger seat. #
Check the status of automatic front passenger airbag actuation (/ page 50).#
If necessar y,consult a quali/ed specialist workshop immediatel y.
Front-passenger airbag
enabled See Owner's Man-
ual *T
he front passen ger airbag will be enabled while theve hicle is in motion in thefo llowing situations:
R even when a child, a small adult or an object weighing less than the system weight thre shold is located on the front
passenger seat
R even when the front passenger seat is not occupied
The system may de tect objects or forc es that are adding tothewe ight applied tothe seat. Display messages and
warning/indicator lamps
373 373
Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions &
W
WARNING
ARNING Risk of injury or death when using a child restraint system while the front passenger airbag is ena-
bled
If yo u secure a child in a child restraint system on the front passenger seat and the front passenger airbag is ena-
bled, the front passenger airbag can deploy in theev ent of an accident.
The child could be struck bythe airbag. #
Ensure, bo thbefore and during the journe y,that the status of the front passenger airbag is cor rect.
NEVER use a rear wa rdfacing child restraint on a seat pro tected byan ACTIVE AIRBAG in front of it, DEATH or
SERIOUS INJURY tothe CHILD can occur. #
Stop theve hicle immediately in accordance with the tra1c conditions. #
Make sure that no objects are trapped under the front passenger seat. #
Check the status of automatic front passenger airbag actuation (/ page 50).#
If necessar y,consult a quali/ed specialist workshop immediatel y.
PRE-SAFE inoperative See
Owner's Manual *
The PRE‑SAFE ®
functions are malfunctioning. #
Consult a quali/ed specialis two rkshop. 374 374
Displ
aymessages and warning/indicator lamps
Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions #
Visit or consult a quali/ed specialist workshop immediatel y.Ù
Steering malfunction Stop
immediately See Owner's
Manual *T
he steering is malfunctioning. Steering capability is signi/cantly impaired. &
W WARNING
ARNING Risk of accident if steering capability is impaired
If th e steering does not function as intended, theve hicle's operating saf ety is jeopardised. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and tra1c conditions. Do
not continue driving under any circums tances. #
Consult a quali/ed speciali stwo rkshop. Active bonnet malfunction
See Owner's Manual
*T
he active bonn et(pedest rian pr otection) is malfunctioning or inoperative aTer having already been triggered. #
Consult a quali/ed specialist workshop.
C *A
t least one door is open. #
Close all doors.
M *T
he bonn etis open. &
W WARNING
ARNING Risk of accident due todriving with the bonnet unloc ked
The bonnet may open and blo ckyour vie w. 384
384
Display message
s andwarning/indicator lamps
Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions #
For all other transmission positions, park theve hicle safel y. #
Consult a quali/ed specialist workshop.
Reversing not poss. Con-
sult workshop *T
he transmission is malfunctioning. It is not possible toselect transmission position k. #
Consult a quali/ed specialist workshop.
Transmission Malfunction
Stop *T
he transmission is malfunctioning. The transmission shiTs toneutral iautomaticall y. #
Stop theve hicle immediately in accordance with the tra1c conditions. #
Depress the brake pedal. #
Engage park position j. #
Consult a quali/ed specialist workshop.
Stop vehicle Leave engine
running Wait Transmission
cooling *T
he transmission is overheating. Pulling away may be temp orarily impaired or not possible. #
Stop theve hicle immediately in accordance with the tra1c conditions. Do not continue driving. #
Leavethe engine running. #
Wait until the display message disappears before pulling away.
Auxiliary battery malfunc-
tion (white displ aymessage) *V
Vehicles wit
ehicles wit h aut h automatic tr
omatic tr ansmission:
ansmission: The auxiliary battery forth e transmission is no longer being charge d. #
Consult a quali/ed specialist workshop. #
V
Vehicles wit
ehicles wit h aut
h automatic tr
omatic tr ansmission:
ansmission: untilthen, alw ays select park position jbefore you switch o. theve hicle. #
Before leaving theve hicle, apply the electric parking brake. Display messages and
warning/indicator lamps
391
391
Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
J
Check brake fluid level *T
here is insu1cient brake 0uid in the brake 0uid reser voir. &
W
WARNING
ARNING Risk of an accident due tolow brake 0uid le vel
If th e brake 0uid le vel is too lo w,the braking e.ect and the braking characteristics may be impaired. #
Stop theve hicle as soon as possible, paying attention toroad and tra1c conditions. Do not continue driving. #
Consult a quali/ed specialist workshop. #
Do not top up the brake 0uid. Check brake pads See
Owner's Manual
*T
he brakepads ha vereached thewe ar limit. #
Consult a quali/ed specialist workshop. Dr Dr
iving syst
iving syst ems
ems Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/conseq uences and
uences andM
MSolutions
Solutions
ë
Off *T
he HOLD function is deactivated because theve hicle is slipping or a condition for activation is not ful/lled. #
Reactivate the HOLD function later or check the activation conditions forth e HOLD function (/ page 190).396
396
Display messages and
warning/indicator lamps
Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
ä
Fault Drive at max. 80
km/h *A
IR BODY CONTROL is functioning only toa limi tedex tent. The vehicle's handling characteristics may be a.ected. #
Drive in a manner appropriate forth e cur rent le vel, but do not exceed 80 km/h. #
Consult a quali/ed specialist workshop.
*D YNAMIC BODY CONTROL is malfunctioning. The vehicle's handling characteristics may be a.ected. #
Do not drive at speeds greater than 80 km/h. #
Consult a quali/ed specialist workshop.
É
Stop vehicle Vehicle too
low *Y
ou ha vepulled away despite theve hicle le vel being too lo w. #
Stop theve hicle in accordance with the tra1c conditions.
The vehicle will be raised tothe selected vehicle le vel. #
Wait until the display message disappears before pulling away.
If th e display message does not disappear and a warning tone also sounds, AIR BODY CONTROL is malfunctioning: #
Do not drive at speeds greater than 80 km/h and consult a quali/ed specialist workshop immediatel y.
* N
N O OTE
TE The tyres on the front axle or thefe nders could be damaged bylarge stee ring mo vements #
Avoid lar gestee ring mo vements while driving and lis tenfo r scraping sounds. #
Ifyo u hear scraping sounds, pull over and stop theve hicle in accordance with the tra1c conditions, and set a
higher vehicle le vel if possible. Display message
s andwarning/indicator lamps
407
407
Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
Parking Assist and
PARKTRONIC inoperative
See Owner's Manual *A
ctive Parking Assist and Parking Assist PARKTRONIC are malfunctioning.
Once the cause of the problem is no longer present, the system will be available again. #
Continue driving while paying attention totheve hicle's sur roundings.
or #
Stop theve hicle in accordance with the tra1c conditions and restart theve hicle. #
Ifth e display message still appears, consult a quali/ed specialist workshop. Dr Dr
iving safe
iving safe ty syst
ty systems
ems Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/conseq uences and
uences andM
MSolutions
Solutions
!
÷
currently unavailable See
Owner's Manual *
ABS and ESP ®
are temp orarily una vailable.
Other driving systems and driving saf ety systems (e.g. BAS) may also be temp orarily una vailable.
The brake system will continue tooperate normall y.Braking distance may inc rease in an emer gency braking situation. &
W WARNI NG
ARNI NGRisk of skidding if ABS and ESP ®
are malfunctioning
The wheels may lock during braking and ESP ®
does not per form any vehicle stabilisation.
The steerability and braking characteristics are heavily impaired and the braking distance may increase. In addi-
tion, other driving saf ety sy stems are swit ched o.. Display messages and
warning/indicator lamps
409
409