Tire pressure monitoring system
Function/note s............................. 255
Restarting ...................................... 257
Warning lamp ................................. 193
Tires
Aspect ratio (definition) .................268
Average weight of the vehicle
occupants (definition) ....................267
Bar (definition) ............................... 266
Characteristics .............................. 266
Checking ........................................ 249
Definition of terms .........................266
Direction of rotatio n...................... 270
Display message ............................ 177
Distribution of the vehicle
occupants (definition) ....................269
DOT, Tire Identification Number
(TIN) .............................................. .266
DOT (Department of
Transportation) (definition) ............266
GAWR (Gross Axle Weight Rating)
(definition) ..................................... 267
GVW (Gross Vehicle Weight)
(definition) ..................................... 267
GVWR (Gross Vehicle Weight
Rating) (definition) .........................267
Important safety notes ..................248
Increased vehicle weight due to
optional equipment (definition) ......267
Kilopascal (kPa) (definition) ...........268
Labeling (overview )........................ 263
Load bearing index (definition) ......269
Load index ..................................... 265
Load index (definition) ...................268
Maximum loaded vehicle weight
(definition) ..................................... 267
Maximum load on a tire
(definition) ..................................... 268
Maximum permissible tire
pressure (definition) ....................... 268
Maximum tire loa d......................... 261
Maximum tire load (definition) .......268
Optional equipment weight
(definition) ..................................... 269
PSI (pounds per square inch)
(definition) ..................................... 268
Replacing ....................................... 269
Service life ..................................... 250Sidewall (definition)
.......................268
Speed rating (definition) ................267
Storing ........................................... 270
Structure and characteristics
(definition) ..................................... 266
Technical data ............................... 272
Temperature .................................. 262
TIN (Tire Identification Number)
(definition) ..................................... 269
Tire bead (definition) ......................268
Tire pressure (definition) ................268
Tire pressures (recommended )...... 267
Tire size (data) ............................... 270
Tire size designation, load-bearing
capacity, speed rating .................... 263
Tire tread ....................................... 249
Tire tread (definition) .....................268
Total load limit (definition) .............269
Traction ......................................... 262
Traction (definition) .......................269
Tread wea r..................................... 262
Uniform Tire Quality Grading
Standards ...................................... 261
Uniform Tire Quality Grading
Standards (definition) ....................267
Unladen weight (definition) ............268
Wear indicator (definition) .............269
Wheel rim (definition) ....................267
see Flat tire
Top Tether ............................................ 53
Tow-away alarm .................................. 59
Towing Important safety guidelines ...........242
Installing the towing eye ................243
Removing the towing eye ...............243
With the rear axle raised ................243
Towing away
With both axles on the ground .......244
Transmission
Driving tips .................................... 120
Selector lever ................................ 117
Shift range ..................................... 122
Transmission position display .........119
Transmission positions ....................119
Transporting the vehicle ..................244
Trim pieces (cleaning instructions) .225
Trip computer (on-board
computer) .......................................... 148 Index
15ProCarManuals.com
View through the camera
The area behind the vehicle is displayed as a
mirror image, as in the rear view mirror.
! Objects not at ground level may appear to
be further away than they actually are, e.g.:
R the bumper of a parked vehicle
R the drawbar of a trailer
R the ball coupling of a trailer tow hitch
R the rear section of an HGV
R a slanted post
Use the guidelines only for orientation.
Approach objects no further than the
bottom-most guideline.
The rear view camera may show a distorted
view of obstacles, show them incorrectly or
not at all. The rear view camera does not show
objects in the following positions:
R very close to the rear bumper
R under the rear bumper
R in the area immediately above the tailgate
handle
Activating the rear view camera X
Make sure that key position 2has been
selected with the Start/Stop button.
X Make sure that the "rear view camera"
function is selected in COMAND (see the separate operating instructions for
COMAND).
X Engage reverse gear.
The COMAND display shows the area
behind the vehicle.
You can also switch off the display of the area
behind the vehicle in the COMAND display. Blind Spot Assist
Important safety notes Blind Spot Assist uses a radar sensor system
to monitor the areas on both sides of your
vehicle. It supports you from speeds of
approximately 20 mph(30 km/h). A warning
display in the exterior mirrors draws your
attention to vehicles detected in the
monitored area. If you then switch on the
corresponding turn signal to change lanes,
you will also receive a visual and audible
collision warning. For this purpose, Blind Spot
Assist uses sensors in the rear bumper.
Blind Spot Assist is only an aid. It may fail to
detect some vehicles and is no substitute for
attentive driving.
G
WARNING
Blind Spot Assist does not react to:
R vehicles overtaken too closely on the side,
placing them in the blind spot area
R vehicles approaching and driving by with a
speed difference of more than 6.8 mph
(11 km/h)
As a result, Blind Spot Assist may not give
warnings in such situations. There is a risk of
an accident.
Always observe the traffic conditions
carefully, and maintain a safe lateral distance.
i USA only:
This device has been approved by the FCC
as a "Vehicular Radar System". The radar
sensor is intended for use in an automotive
radar system only. Removing, tampering
with, or altering the device will void any Driving systems
141Driving and parking Z
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X
Remove the jack from the left-hand
stowage space in the trunk to allow the
stowage compartment to be opened.
X Turn fastener ;in the direction of the
arrow.
X Open stowage compartment :.
X Remove the TIREFIT kit, wheel chock,
alignment bolt and gloves. Flat tire
Preparing the vehicle
Your vehicle is equipped with a TIREFIT kit.
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 Apply the electric parking brake manually
(Y page 129).
X Bring the front wheels into the straight-
ahead position.
X Shift the transmission to Pwith the button
in the center console.
X Switch off the engine.
X Remove the SmartKey from the ignition
lock.
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 a wheel 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 conditions when doing so.
X Close the driver's door. TIREFIT kit
Using the TIREFIT kit G
WARNING
TIREFIT is a limited repair device. TIREFIT
cannot be used for cuts or punctures larger
than approximately 0.16 in (4 mm) and tire
damage caused by driving with extremely low
tire inflation pressure, or on a flat tire, or a
damaged wheel.
Do not drive the vehicle under such
circumstances.
Contact the nearest authorized Mercedes-
Benz Center for assistance or call Roadside
Assistance. G
WARNING
Take care not to allow the contents of TIREFIT
to come in contact with hair, eyes or clothing.
TIREFIT is harmful if inhaled, swallowed or
absorbed through the skin - causes skin, eye
and respiratory irritation.
Any contact with eyes or skin should be
flushed immediately with plenty of water.
If clothing comes in contact with TIREFIT,
change clothing as soon as possible.
In case of allergic reaction or rash, consult a
physician immediately. G
WARNING
Keep TIREFIT away from children. If
swallowed, rinse mouth immediately with
plenty of water and drink plenty of water.
Do not induce vomiting.
Consult a doctor immediately.
Keep away from open flame or heat source.
You can use the TIREFIT kit to seal small
punctures, particularly those in the tire tread.
You can use TIREFIT at outside temperatures
down to -40 †. Flat ti
re
229Breakdo wn assis tance Z
ProCarManuals.com
reason, you should start the engine unless
you are inflating the tire in an enclosed
space. X
Press on/off switch ;on the tire inflation
compressor to I.
The tire inflation compressor is switched
on. The tire is inflated.
i First, TIREFIT is pumped into the tire. The
pressure can briefly rise to approximately
500 kPa (5 bar/73 psi).
Do not switch off the tire inflation
compressor during this phase.
X Let the tire inflation compressor run for a
maximum of ten minutes. The tire should
then have attained a pressure of at least
180 kPa (1.8 bar/26 psi).
Switch the tire inflation compressor off
briefly to read the correct value from
pressure gauge B.
! Do not operate the tire inflation
compressor for longer than ten minutes at
a time without a break. It may otherwise
overheat.
The tire inflation compressor can be
operated again once it has cooled down.
Tire pressure of at least 180 kPa
(1.8 bar/26 psi) is not reached G
WARNING
If after five minutes a pressure of 180 kPa
(1.8 bar/26 psi) cannot be achieved, the tire
is too badly damaged to be repaired reliably
using TIREFIT. In this case TIREFIT cannot seal the tire
properly.
Do not drive any further.
Contact the nearest authorized Mercedes-
Benz Center for assistance or call Roadside
Assistance.
If, after five minutes, a pressure of 180 kPa
(1.8 bar/26 psi) has not been achieved:
X Switch off the tire inflation compressor,
remove it and drive the vehicle
approximately 30 ft (10 m) forward or back.
This distributes the TIREFIT more evenly.
X Leave tire sealant bottle :attached to the
flange.
X Pump up the tire again.
Tire pressure of 180 kPa (1.8 bar/
26 psi) is reached If the tire pressure is at least 180 kPa
(1.8 bar/26 psi):
X
Press on/off switch ;on the tire inflation
compressor to 0.
The tire inflation compressor is switched
off.
X Remove connector ?from the 12 V
socket.
X Remove filler hose Efrom tire valve G
and re-install the dust protection cap.
Screw the valve cap onto the valve again.
Leave tire sealant bottle :attached to
flange F.
X Stow the TIREFIT kit in a safe and
accessible place in the vehicle.
X Pull away immediately .
! After use, excess TIREFIT may run out of
the filler hose. This could cause stains. G
WARNING
Do not exceed a vehicle speed of 50 mph
(80 km/h). A TIREFIT repair is not designed to
operate at higher speeds. Flat tire
231Breakdown assistance
Z
ProCarManuals.com
The sticker must be attached on the
instrument cluster where it will be easily seen
by the driver.
Vehicle handling characteristics of a TIREFIT
repaired tire may change. Adapt your driving
accordingly.
X Stop after driving for approximately ten
minutes and check the tire pressure with
the tire inflation compressor.
i On tires that are equipped with a tire
pressure sensor (tire pressure monitor),
the use of sealant can lead to malfunction
messages and incorrect displays.
Therefore, use pressure gauge Bin the
TIREFIT kit to check and correct the tire
pressure. G
WARNING
If tire inflation pressure has fallen below
130 kPa (1.3 bar/26 psi) do not continue to
drive the vehicle.
Park your vehicle safely away from the
roadway and contact the nearest authorized
Mercedes-Benz Center or Roadside
Assistance.
Have the damaged tire replaced.
X Correct the tire pressure if it is still at least
130 kPa (1.3 bar/20 psi) (for the values,
see the Tire and Loading Information
placard on the driver's side B-pillar or tire
pressure table on the fuel filler flap).
To increase the tire pressure: switch on
the tire inflation compressor.
To reduce the tire pressure: open release
screw C.
! The manufacturer does not guarantee
that all tire damage can be repaired using
the TIREFIT kit, particularly in the case of
cuts and punctures with a diameter of more
than four millimeters or on the sidewall. The
manufacturer is not responsible for
damage caused by inappropriate use of the
TIREFIT kit. X
Drive to the nearest workshop and have the
tire changed there.
X Have the tire sealant bottle replaced as
soon as possible at a qualified specialist
workshop, e.g. at an authorized Mercedes-
Benz Center. H
Environmental note
Have the used tire sealant bottle disposed of
professionally, e.g. at an authorized
Mercedes-Benz Center.
X Have the TIREFIT kit replaced every four
years at a qualified specialist workshop,
e.g. an authorized Mercedes-Benz Center. Changing a wheel and mounting the
spare wheel
Preparing the vehicle X
Prepare the vehicle as described
(Y page 229).
X Bring the wheels into the straight-ahead
position.
X Take the following objects from the left-
hand stowage compartment and the left-
hand stowage space in the trunk:
R
lug wrench
R folding wheel chock
R jack
R alignment bolt
X Secure the vehicle to prevent it from rolling
away.
Securing the vehicle to prevent it from
rolling away G
WARNING
Only jack up the vehicle on level ground or on
slight inclines/declines. The vehicle could
otherwise fall off the jack and injure you or
others. 232
Flat tireBreakdown assistance
ProCarManuals.com
X
Connect negative terminal =of donor battery Bto earth point ?of your vehicle using
the jumper cable, connecting the jumper cable to donor battery Bfirst.
X Start the engine.
X Before disconnecting the jumper cables, let the engine run for several minutes.
X First, remove the jumper cables from earth point ?and negative terminal =, then from
positive clamp :and positive terminal ;. Each time beginning with your vehicle's battery.
X Slide cover Aof the positive terminal in the opposite direction to the arrow.
X Have the battery checked at a qualified specialist workshop.
i Jump-starting is not considered to be a normal operating condition.
i Jumper cables and further information regarding jump-starting can be obtained at any
qualified specialist workshop. Towing and tow-starting
Important safety notes
If the vehicle can no longer be driven because
of an accident or breakdown, you have the
following options:
R transporting the vehicle
As a rule, you should have the vehicle
transported.
R towing the vehicle with the rear axle raised
Only tow the vehicle with the rear axle
raised in exceptional cases.
R towing the vehicle with a tow rope or tow
bar
Only tow the vehicle in exceptional cases.
The engine must be running if you tow the
vehicle with a tow rope or tow bar. Observe
the following notes. G
WARNING
The rear axle locks when:
R the engine is not running
R the engine stalls while the vehicle is being
towed
R there is a malfunction in the power supply
or the vehicle's electrical system
There is a risk of an accident.
In the event of a breakdown, you should
always have the vehicle transported. G
WARNING
If the brake system or power steering is
malfunctioning and your vehicle is then towed
away, significantly more effort may be
required to steer and brake than is normally
required. There is a risk of an accident.
In such cases, use a tow bar. Before towing,
make sure that the steering moves freely.
! Use the SmartKey instead of the Start/
Stop button when towing the vehicle.
Start the engine and keep it running. Turn
the SmartKey to position 2in the ignition.
Set the transmission to Nusing the E-
SELECT lever. Make sure that you then
leave the SmartKey in position 2.
Check the transmission position in the
instrument cluster.
! Make sure that the electric parking brake
is released. If the electric parking brake is
faulty, visit a qualified specialist workshop.
Mercedes-Benz recommends that you use
an authorized Mercedes-Benz Center for
this purpose.
! When towing, pull away slowly and
smoothly. If the tractive power is too high,
the vehicles could be damaged.
! Only secure the tow rope or tow bar at the
towing eyes. Otherwise, the vehicle could
be damaged. 242
Towing and tow-startingBreakdown assistance
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