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001E
Alignment bolt
0025 Sheet for faulty wheel
0009 Tire inflation compressor
0016 Lugw rench
001D Fusealloc ation chart
X Ope nthe trunk lid.
X Lift the trunk floor upwards (Y page 283).Flat tire
Preparing the vehicle
Your vehicle may be equipped with:
R MOExtended tires (tires with run-flat
properties) (Y page 321)
Vehicle preparation is not necessary on
vehicles with MOExtended tires.
R an emergency spare wheel(Y page 367)
Information on changing/mounting awheel
(Y page 357).
X Stop the vehicle on solid, non-slippery and
level ground, as far away as possible from
traffic.
X Switch on the hazard warning lamps.
X Secure the vehicle against rolling away
(Y page 167).
X If possible, bring the front wheels into the
straight-ahead position.
X Vehicles with AIRMATIC: make sure that
"normal" level is selected (Y page 189).
X Switch off the engine.
X Vehicles without KEYLESS-GO: remove
the SmartKey from the ignition lock.
X Vehicles with KEYLESS-GO: open the
driver's door.
The on-board electronicsn ow have status
0.T his is the same as the SmartKey having
been removed.
X Vehicles with KEYLESS-GO: remove the
Start/Stop button from the ignition lock
(Y page 147). X
All occupants must get out of the vehicle.
Make sure that they are not endangered as
they do so.
X Make sure that no one is near the danger
area while awheel is being changed.
Anyone who is not directly assisting in the
wheel change should, for example, stand
behind the barrier.
X Get out of the vehicle. Pay attention to
traffic conditionsw hen doing so.
X Close the driver's door. MOExtended tires (tires with run-flat
properties)
General notes With MOExtended tires (tires with run flat
characteristics), you can continue to drive
your vehicle even if there is
atotal loss of
pressure in one or more tires. The affected
tire must not show any clearly visible damage.
You can recognizeM OExtended tires by the
MOExtended marking which appears on the
sidewall of the tire. You will find this marking
next to the tire size designation, the load-
bearing capacity and the speed index
(Y page 351).
MOExtended tires may only be used in
conjunction with an active tire pressure loss
warning system or with an active tire pressure
monitor.
If the pressurel oss warning message
appearsint he multifunction display:
R Observe the instructions in the display
messages (Y page 258).
R Check the tire for damage.
R If driving on, observe the following notes.
The maximum driving distance is
approximately 50 miles (80 km) when the
vehicle is partially laden and approximately
18 miles (30 km) when the vehicle is fully
laden. Flat tire
321Breakdown assistance
Page 333 of 382

X
Turn the SmartKey to position 2in the
ignition lock.
X Shift the automatic transmission to
position N.
As soon as the vehicle is loaded:
X Prevent the vehicle from rolling away by
applying the parking brake.
X Shift the automatic transmission to
position P.
X Turn the SmartKey to position 0in the
ignition lock and remove the SmartKey
from the ignition lock.
X Secure the vehicle. Notes on 4MATIC vehicles
! Vehicles with 4MATI Cmust not be towed
with either the frontort he rear axle raised,
as doing so will damage the transmission.
If the vehicle has transmission damage or
damage to the front or rear axle, have it
transported on atransporter or trailer.
In the event of damage to the electrical
system
If the battery is defective, the automatic
transmission will be locked in position P.To
shift the automatic transmission to position
N,y ou must provide power to the vehicle's
electrical system in the same way as when
jump-starting (Y page 326).
Have the vehicle transported on atransporter
or trailer. Tow-starting (emergency engine
starting)
! Vehicles with automatic transmission
must not be started by tow-starting. This
could otherwise damage the transmission.
You can find information on "Jump-starting"
at (Y page 326). Fuses
Important safety notes
G
WARNING
If you manipulate or bridge afaulty fuse or if
you replace it with afuse with ahigher
amperage, the electric cables could be
overloaded. This could result in afire. There
is ar isk of an accident and injury.
Always replace faulty fuses with the specified
new fuses having the correct amperage.
! Only use fuses that have been approved
for Mercedes-Ben zvehicles and which
have the correct fuse ratin gfor the system
concerned. Otherwise, componentsor
systems could be damaged.
The fuses in your vehicle serve to close down
faulty circuits. If afuse blows ,all the
component sonthecircuit and their functions
stop operating.
Blown fuse smust be replace dwith fuses of
the same rating, which you can recognize by
the color and value. The fuse ratings are listed
in the fuse allocation chart.
If an ewly inserted fuse also blows, have the
cause traced and rectified at aqualified
specialist workshop, e.g. an authorized
Mercedes-Ben zCenter. Befor
echanging afuse
X Secure the vehicle against rolling away
(Y page 167).
X Switc hoff all electrical consumers.
X Turn the SmartKey to position 0in the
ignition lock and remove it (Y page 147).
or
X On vehicles with KEYLESS-GO, make sure
the ignition is switched off (Y page 147).
All indicator lamps in the instrument cluster
must be off. Fuses
331Breakdown assistance Z
Page 334 of 382

The fuses are located in various fuse boxes:
R Fuse box in the engine compartment on the
left-hand side of the vehicle, when viewed
in the direction of travel
R fuse box in the trunk on the right-hand side,
when viewed in the direction of travel
the fuse allocation chart is located in the
vehicle tool kit in the stowage compartment
under the trunk floor (Y page 320).Fuse box in the engine compartment
G
WARNING
When the hood is open and the windshield
wipers are set in motion ,you can be injured
by the wiper linkage. There is arisk of injury.
Always switch off the windshield wipers and
the ignition before opening the hood.
! Make sure that no moisture can enter the
fuse box when the cover is open.
! When closing the cover, make sure that it
is lying correctly on the fuse box. Moisture
seeping in or dirt could otherwise impair
the operation of the fuses.
X Make sure that the windshield wipers are
turned off.
X Open the hood. X
Use adry cloth to remove any moisture
from the fuse box.
X To open: remove lines 0010from the guides.
X Move lines 0010aside. Route the lines behind
connection 0024to do this. X
Open clamp 001A.
X Remove the fuse box cover forwards.
X To close: check whether the rubber seal is
lying correctly in the cover.
X Insert the cover at the rear of the fuse box
into the retainer.
X Fold down cover and close clamps 001A.
X Secure lines 0010in the guides.
X Close the hood. Fuse box in the trunk
! Make sure that no moisture can enter the
fuse box when the cover is open.
! When closing the cover, make sure that it
is lying correctly on the fuse box. Moisture
seeping in or dirt could otherwise impair
the operation of the fuses.
X Open the trunk lid. X
To open: release cover 001Aat the top right
and left-hand sides with aflat object.
X Open cover 001Adownwards in the direction
of the arrow. 332
FusesBreakdown assistance