Display
messages 24
3 Display messages Possible cause/consequence Possible solution
Top up coolan
t The coolant level is too low. X
Top up the coolant, observing the warning
notes (Y page 209).
X Have the coolant system checked at a qualified
specialist workshop if the coolant needs top-
ping up more often than usual .Switch off
lights or
remove key The light switch has been set to the
*
position or the daytime driving lights
are switched on and you have not
removed the key. The parking lamps
remain switched on. In addition, a warning
tone sounds. X
Remove the key from the ignition lock.
or
X Set the light switch to the Mposition . Check tyres Tyre pressure
Check tyres The tyre pressure loss warning system has
detected a significant pressure loss.
A
warning tone also sounds. X
Stop the vehicle without making any sudden
steering or braking manoeuvres. Pay attention
to the traffic conditions as you do so.
X Check the tyres.
X Check the tyre pressure and correct it if nec-
essary (Y page 213).
X Repair or change the faulty wheel as necessar y
( Y page 313).
X Then restart the tyre pressure loss warning
system once the tyre pressure is correc t
( Y page 214). Practical advice
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Display
messages 26
8 Display messages Possible cause/consequence Possible solution
I 4-button multi-function
steering wheel:
Change batter
y
12-button luxury multi-
function steering
wheel:
Change key batter -
ies The KEYLESS GO* key batteries are dis-
charged. X
Change the batteries (Y page 304). I Key not detected
The KEYLESS GO key* is not detected
while the engine is running because it is
not inside the vehicle or because of strong
radio interference. A warning tone also
sounds.
Once the engine is switched off, you will
no longer be able to lock the vehicle cen-
trally or start the engine. X
Stop the vehicle. Pay attention to the traffic
conditions as you do so.
X Locate the KEYLESS GO key* or operate the
vehicle using the key in the ignition lock. I Key not detected
The KEYLESS GO* key cannot be detec-
ted. X
Change the location of the KEYLESS GO key*
within the vehicle .
X Operate the vehicle using the key in the ignition
lock if necessary. Practical advice
* optional
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Flat tyre
314
Vehicles with automatic transmission
*X
Move the selector lever to P.
For all vehicles X
Place the warning triangle (Y page 232) or
warning lamps at a suitable distance.
Observe legal requirements. G
Risk of injury
The jack is designed only to raise and hol d
the vehicle for a short time while a whee l
is being changed.
If you are carrying out work on the vehicle,
you must use stands.
Make sure that the jack is placed on a firm ,
non-slip and level surface. Do not us e
wooden blocks or similar objects as a jac k
underlay. Otherwise the jack will not be
able to achieve its load-bearing capacit y
due to the restricted height.
Do not start the engine at any time while a
wheel is being changed.
Do not lie under the vehicle when it is bein g
supported by the jack. If you do not raise
the vehicle as described, it could slip off the
jack (e.g. if the engine is started or a door or the boot lid/tailgate is opened or closed)
and you could be seriously injured. Using the TIREFIT kit
You can use the TIREFIT kit to seal small
punctures, particularly those in the tyre tread.
You can use TIREFIT in outdoor temperatures
down to -20 °C. G
Risk of accident
In the following situations, your safety is at
particular risk and TIREFIT is unable to pro -
vide breakdown assistance:
R if there are cuts or punctures in the tyre
greater than 4 mm
R if the wheel rim is damaged
R if you have driven at very low tyre pres-
sures or on a flat tyre
Do not drive any further. Consult a qualified
specialist workshop which has the neces-
sary specialist knowledge and tools to carr y
out the work required.
Mercedes-Benz recommends that you use
a Mercedes-Benz Service Centre for this
purpose. In particular, work relevant to
safety or on safety-related systems must be carried out at a qualified specialist work-
shop.
X Do not remove any foreign objects which
have penetrated the tyre, e.g. screws or
nails .
X Remove TIREFIT, the accompanying "max .
80 km/h“ and the electric air pump from
the stowage compartment in the boot floo r
(Saloon) or the luggage compartment floor
(Estate) (Y page 232). 1
Driver's field of vision sticker
2 Wheel sticker
X Affix part 1of the sticker within the driv-
er's field of vision.
X Affix part 2of the sticker near the valve
on the wheel with the defective tyre. Practical advice
* optional
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319specialist workshop which has the neces-
sary specialist knowledge and tools to carry
out the work required. Mercedes-Benz rec -
ommends that you use a Mercedes-Benz
Service Centre for this purpose. In particu-
lar, work relevant to safety or on safety-
related systems must be carried out at a
qualified specialist workshop. 9
Pressure release button
a Pressure gauge
X If the tyre pressure is still at least 1.3 bar,
correct it (see fuel filler flap for values).
To increase the tyre pressure: switch on
the electric air pump.
To reduce the tyre pressure :press yellow
pressure release button 9next to pres-
sure gauge a. X
Drive to the nearest workshop and have the
tyre changed there.
X Have the TIREFIT kit replaced as soon as
possible at a qualified specialist workshop ,
e.g. at a Mercedes-Benz Service Centre. G
Risk of accident
Do not exceed the maximum speed of 80
km/h.
The “max. 80 km/h” sticker must be affixe d
within the driver's field of vision.
The vehicle's handling characteristics may
be affected. H
Environmental not
e
Have the used TIREFIT kit disposed of pro-
fessionally, e.g. at a Mercedes-Benz
Service Centre.
X Have the TIREFIT kit replaced every fou r
years at a qualified specialist workshop ,
e.g. a Mercedes-Benz Service Centre. Changing a wheel and fitting the spar
e
wheel * G
Risk of accident
The wheel dimensions and tyre size of the
spare wheel*, the emergency spare
wheel* and standard wheels may differ
from one another.
Your vehicle's handling characteristics will
be altered when a "Minispare"/collapsibl e
emergency spare wheel* is fitted. Adapt
your style of driving accordingly.
The “Minispare”/collapsible emergency
spare wheel* must only be used as a tem-
porary measure. Do not exceed the maxi-
mum speed of 80 km/h and do not
deactivate ESP ®
. G
Risk of accident
Have the “Minispare”/collapsible emer-
gency spare wheel* or the spare wheel *
replaced with a new wheel as soon as pos-
sible at a qualified specialist workshop
which has the necessary specialist knowl-
edge and tools to carry out the work
required. Mercedes-Benz recommends
that you use a Mercedes-Benz Service
Centre for this purpose. In particular, work Practical advice
* optiona l
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320 relevant to safety or on safety-related sys-
tems must be carried out at a qualified
specialist workshop
.
Never drive the vehicle with more than one
“Minispare”/collapsible emergency spare
wheel* fitted.
Preparing the vehicle X
Prepare the vehicle as described
(Y page 313).
X Place the wheels in the straight-ahead posi-
tion.
X Take out the following from the stowage
area beneath the boot/luggage compart -
ment floor:
R The "Minispare" emergency spare
wheel* or the spare wheel*, if present
R The vehicle tool kit and jack
.
X Secure the vehicle to prevent it from rolling
away .
On level ground :place chocks or similar
under the front and rear of the wheel that
is diagonally opposite the wheel you wish
to change. Securing a vehicle on level ground (example illus-
tration)
X
On downhill gradients: place chocks or
similar behind both wheels of the other
axle. Securing a vehicle on slight downhill slope (exam-
ple illustration
) Raising the vehicle
Steel wheel with wheel trim
X
Vehicles with steel wheels :carefully
reach into two wheel trim openings and
remove the wheel trim. Practical advic
e
* optional
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321
X
Using the wheel wrench, loosen the wheel
bolts on the wheel you wish to change by
about one full turn. Do not unscrew the
bolts completely. G
Risk of accident
If you fail to position the jack correctly, the
vehicle may :
R slip off the jack
R injure you or others
R be damaged
It is thus important to ensure that the jack
is positioned correctly in the respective
jacking points. Before positioning the jack ,
remove any dirt that may have collected in
the jacking points.
The jacking points for the jack are located
behind the wheel housings of the front wheels
and in front of the wheel housings of the rear
wheels (arrows). 1
Jacking poin t
2 Jack
X Position jack 2at jacking point 1. X
Make sure that the base of the jack is posi-
tioned directly under the jacking point.
X Turn the crank until the tyre is raised a
maximum of 3 cm from the ground .
X Unscrew the wheel bolts.
! Do not place wheel bolts in sand or on a
dirty surface. This could cause damage to
the bolt and wheel hub threads.
X Remove the wheel.
Fitting a new wheel G
Risk of accident
Replace damaged or corroded wheel bolts.
Never oil or grease wheel bolts. Practical advice
204_AKB; 2; 3, en-G
B
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322 G
Risk of accident
If a wheel hub thread is damaged, you mus t
not drive the vehicle any further. Consult a
qualified specialist workshop which has the
necessary specialist knowledge and tools
to carry out the work required. Mercedes-
Benz recommends that you use a
Mercedes-Benz Service Centre or Service
24h for this purpose. In particular, work rel-
evant to safety or on safety-related systems
must be carried out at a qualified specialist
workshop. G
Risk of accident
Only use wheel bolts that have bee n
designed for the wheel and the vehicle. For
safety reasons, Mercedes-Benz recom -
mends that you only use wheel bolts which
have been approved for Mercedes-Benz
vehicles. Other bolts could work loose .
Do not tighten the wheel bolts completel y
while the vehicle is still jacked up. The vehi -
cle could topple off the jack.
X Clean the wheel and wheel hub contact
surfaces. X
Place the "Minispare" emergency spare
wheel* or the spare wheel onto the wheel
hub and push it on.
X Tighten the wheel bolts until they are fin-
ger-tight. Lowering the vehicle
X
Lower the vehicle. To do this, turn the crank
of the jack anti-clockwise until the vehicle
is standing firmly on the ground again.
X Place the jack to one side. 1
–5 Wheel bolts
X Tighten the wheel bolts evenly in a cross-
wise pattern in the sequence indica-
ted (1 to5 ). The tightening torque must
be 130 Nm. G
Risk of accident
Have the tightening torque checked imme-
diately after a wheel is changed. The wheel s
could work loose if they are not tightened
to a tightening torque of 130 Nm.Practical advice
* optional
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323
X
Turn the jack back to its initial position and
store it and the rest of the vehicle tool kit
in the boot/luggage compartment.
Vehicles with the "Minispare" emergency
spare wheel*:
X Transport the faulty wheel in the boot/lug-
gage compartment.
or
X Depending on the size of the wheel, yo u
may also be able to secure the faulty whee l
in the spare wheel well. In this case, you
will have to remove the stowage well casin g
from the spare wheel well and stow it
securely in the boot/luggage compart-
ment. MOExtended run-flat system*
The MOExtended run-flat system* must only
be used in conjunction with the tyre pressure
loss warning system*.
! The maximum permissible distance which
can be driven in run-flat mode depends on
the load in the vehicle. It is 50 km if the
vehicle is partially laden and 30 km if fully
laden. The maximum permissible distance which
can be driven in run-flat mode is counted
from the moment the tyre pressure loss
warning appears in the multi-function dis-
play.
You must not exceed a maximum speed of
80 km/h.
i Vehicles featuring the MOExtended run-
flat system* are not equipped with the
TIREFIT kit*.
It is therefore recommended to additionally
equip your vehicle with the TIREFIT kit*
when fitting tyres that do not feature run-
flat properties, e.g. winter tyres.
i A TIREFIT kit* is available from any quali-
fied specialist workshop, e.g. a Mercedes-
Benz Service Centre. G
Risk of accident
The handling characteristics of your vehicl e
deteriorate in run-flat mode, for example:
R when cornering
R when braking
R when accelerating rapidly
Adapt your driving style accordingly and
avoid sudden changes in direction and sud- den acceleration, as well as driving over
obstacles (i.e. kerbs, potholes), and driving
off-road. This is particularly the case when
the vehicle is heavily laden .
The maximum permissible distance that
can be driven in run-flat mode depends to
a large extent on the loads placed on the
vehicle. It can be shorter due to high
speeds, a heavy load, sudden acceleration
and/or manoeuvring, the road surface con-
dition, outside temperature, etc., or further
if you drive carefully and conservatively.
Do not continue to drive in run-flat mode if:
R you hear banging noises
R the vehicle starts to shake
R you see smoke and smell rubber
R ESP ®
is intervening constantly
R there are tears in the sidewalls of the tyr e
After driving in run-flat mode, you must
have the rims checked for damage at a
qualified specialist workshop which has the
necessary specialist knowledge and tools
to carry out the work required. The faulty
tyre must be replaced in every case.
Mercedes-Benz recommends that you use
a Mercedes-Benz Service Centre for this Practical advice
* optional
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