379 Practical hints
What to do if …
Warning!
G
Each tire, including the spare (if provided),
should be checked monthly when cold and
inflated to the inflation pressure recom-
mended by the vehicle manufacturer on the
vehicle placard or the tire inflation pressure
label. (If your vehicle has tires of a different
size than the size indicated on the vehicle
placard or the tire inflation pressure label,
you should determine the proper tire infla-
tion pressure for those tires).
As an added safety feature, your vehicle has
been equipped with a tire pressure monitor-
ing system (TPMS) that illuminates a low tire
pressure telltale when one or more of your
tires is significantly under-inflated. Accord-
ingly, when the low tire pressure telltale illu-
minates, you should stop and check your
tires as soon as possible, and inflate them to
the proper pressure. Driving on a significant-
ly under-inflated tire causes the tire to over-
heat and can lead to tire failure.
Under-inflation also reduces fuel efficiency
and tire tread life, and may affect the vehi-
cle’s handling and stopping ability. Please
note that the TPMS is not a substitute for
proper tire maintenance, and it is the driv-
er’s responsibility to maintain correct tire
pressure, even if under-inflation has not
reached the level to trigger illumination of
the TPMS low tire pressure telltale.
Your vehicle has also been equipped with a
TPMS malfunction indicator to indicate
when the system is not operating properly.
The TPMS malfunction indicator is com-
bined with the low tire pressure telltale.
When the system detects a malfunction, the
telltale will flash for approximately
one minute and then remain continuously
illuminated. This sequence will continue
upon subsequent vehicle start-ups as long
as the malfunction exists. When the mal-
function indicator is illuminated, the system
may not be able to detect or signal low tire
pressure as intended.
TPMS malfunctions may occur for a variety
of reasons, including the installation of in-
compatible replacement or alternate tires or
wheels on the vehicle that prevent the TPMS
from functioning properly. Always check the
TPMS malfunction telltale after replacing
one or more tires or wheels on your vehicle
to ensure that the replacement or alternate
tires and wheels allow the TPMS to continue
to function properly.
394 Practical hintsWhat to do if …Display message
Possible cause/consequence
Possible solution
Tire pres. monitor
inoperative
The TPMS* is malfunctioning.
Have the TPMS* checked by an authorized
Mercedes-Benz Center.
Tire pres. monitor
inoperative
No wheel sensors
There are wheels without wheel sensors
mounted (e.g. winter tires).
Have the TPMS* checked by an authorized
Mercedes-Benz Center.
Have the wheel sensors installed by an authorized
Mercedes-Benz Center.
Tire pres. monitor
Wheel sensor missing
One or more sensors malfunction (e.g. bat-
tery in one or more wheel sensor is empty).
One or more wheels without wheel sensors
mounted (e.g. spare tire).
Have the TPMS* checked by an authorized
Mercedes-Benz Center.
Have the wheel sensors installed by an authorized
Mercedes-Benz Center.
The tire pressure for the respective tire is shown in the
multifunction display.
Tire pres. monitor
currently unavailable
The TPMS* is unable to monitor the tire
pressure due to
a nearby radio interference source.
excessive wheel sensor temperatures.
As soon as the causes for the malfunction are no longer
present, the TPMS* automatically becomes active again
after a few minutes driving.
451 Practical hints
Flat tire
MOExtended system*
The MOExtended system allows you to
continue driving your vehicle even if there
is a total loss of pressure in one or more
tires.
You may only use the MOExtended system
with the Tire Pressure Monitoring System*
(TPMS*) (
page 335).
!The maximum distance in emergency
mode depends on the vehicle’s load. It
is 30 miles (50 km) if the vehicle is par-
tially loaded and 18 miles (30 km) if the
vehicle is fully loaded.
The point at which the maximum driv-
ing distance begins in emergency
mode is when the warning message
appears in the multifunction display
indicating that there is a loss of tire
inflation pressure.
Do not exceed the maximum speed of
50 mph (80 km/h).
Warning!
G
In emergency mode, your vehicle’s driving
characteristics are diminished in such situa-
tions as:
driving around curves
while braking
while accelerating rapidly
Therefore, your driving style must be adapt-
ed accordingly. Avoid abrupt steering and
driving maneuvers, as well as driving over
obstacles (road curbs, potholes, or off-road
areas). This is especially important if the ve-
hicle is heavily loaded.
The emergency driving distance that can be
achieved greatly depends on the demands
placed on the vehicle. Depending on speed,
load, driving maneuvers, road conditions,
outside temperature, etc., the distance can
be significantly shorter or, if the vehicle is
driven cautiously, somewhat longer.
Do not continue driving in emergency mode
if
you notice knocking sounds
the vehicle starts to shake
smoke develops and you smell rubber
ESP
® is intervening continuously
you notice tears on the tire sidewalls
After driving in emergency mode, you must
have the rims inspected by an authorized
Mercedes-Benz Center to check if they are
suitable for further use. The failed tire must
be replaced in any case.iWhen replacing individual or all tires on
the vehicle, make sure only matching
tires marked with “MOExtended” are
mounted in the size specified for your
vehicle.
496 Technical termsTire load rating
(
page 352)
Tire ply composition and material used
(page 352)
Tire speed rating
(page 352)
TPMS
(page 335)
Traction
(page 352)
Tread
(page 352)
Treadwear indicators
(page 352)
Uniform Tire Quality Grading Standards
(page 353)
Vehicle capacity weight
(page 353)Vehicle level control*
The ground clearance of the vehicle is
automatically controlled according to a
selected setting and speed.The driver
can set the ground clearance manually
for example on very rough roads.
Vehicles Maintenance System
(U.S. vehicles)
Maintenance service indicator in the
multifunction display that informs the
driver when the next vehicle mainte-
nance service is due. The Vehicle Main-
tenance System in your vehicle tracks
distance driven and the time elapsed
since your last maintenance service,
calculates other maintenance service
work required, and calls for the next
maintenance service accordingly.
Vehicle maximum load on the tire
(
page 353)
VIN
(Vehicle I
dentification N
umber)
The number set by the manufacturer
and placed on the body to uniquely
identify each vehicle produced.Voice control system*
Voice control system for car phones,
portable cell phones and audio sys-
tems (radio, CD, etc.).
512 IndexTechnical data
Air conditioning refrigerant 485
Brake fluid 485
Capacities fuels, coolants, lubricants
etc. 482
Coolant 487
Electrical system 479
Engine 470
Engine oil additives 485
Engine oils 485
Fuel requirements 487
Gasoline additives 486
Premium unleaded gasoline 486
Rims and tires 472
Weight 481
Windshield washer and headlamp
cleaning system 484Tele Aid 282, 495
Emergency calls 284
Information 287
Initiating an emergency call
manually 285
Message in display 415
Messages in display 414
Remote door unlock 289
Roadside Assistance 286
SOS button 285
Stolen Vehicle Recovery
services 290
System self-check 283
Telematics* 495
Telephone* 26, 181, 281
Answering/ending a call 182
Message in display 416
Operation 181
Phone book* 183
Redialing 183
Temperature
Display mode
Interior temperature 207, 221
Setting display unit
Tether attachment points, see Cihildren in
the vehicleTie-down rings, Cargo compartment 264
Tightening torque 450, 495
Time 171, 172
Setting minutes 171
TIN 352
Tire
Vehicle maximum load on 353
Tire and Loading Information
Placard 328
Tire and Loading Terminology 350
Tire Identification Number see TIN
Tire inflation pressure 442
Checking
Tire load rating 352
Tire ply composition and material
used 352
Tire Pressure Monitoring System*
(TPMS*), (USA only)
Checking tire pressure
electronically 335
Tire speed rating 352
TIREFIT
Instructions for use 440
TIREFIT kit 440
513 Index
Tires 324, 472
Air pressure
Care and maintenance 325
Chains 356
Cleaning 326
Direction of rotation, Spinning 327
Driving instructions 305
Important notes, Tire inflation
pressure 334
Inflation pressure 335, 339
Information Placard 328
Inspection 325
Messages in display 413
MOExtended system* 340, 451
Problems under-/overinflation 339
Retreads 324
Rims and tires 472
Rotation 353
Service life 325
Sizes 474
Snow 355
Speed rating 306, 343
Storing 326
Temperature 334, 349
Terminology 350
TPMS malfunction telltale 378Traction 306
Tread depth 326, 355
Wear pattern 353
Winter 355
Tools 419
Top tether see Children in the vehicle
Tow-away alarm 103
Towing eye bolt 461
Towing the vehicle 458
Traction 190, 352
Transmission fluid level 320
Transmission gear slector lever see Gear
selector lever
Traveling abroad 309
Tread 352
Tread depth 326, 355
Treadwear indicators 352
Trip computer 180
Trip odometer 153
Turn signal lamps
Cleaning lenses 365
Messages in display 412
Replacing bulbs 435Turn signals 54
Additional in mirrors 432
Bulbs 432
Cleaning lenses 365
Indicator lamps 25
Turning off engine 61
Twin roller blind 269
U
Uniform Tire Quality Grading
Standards 353
Units, Settings
Speedometer 168
Temperature 168
Unleaded gasoline, Premium 486
Uphill driving
Cruise control 240
Upholstery
Cleaning 368
Useful features 272