Run flat indicator MERCEDES-BENZ SLK-Class 2014 R172 Owner's Manual

Tire size (data)
............................... 333
Tire size designation, load-bearing
capacity, speed rating .................... 322
Tire tread ....................................... 307
Tire tread (definition) .....................327
Total load limit (definition) .............328
Traction ......................................... 321
Traction (definition) .......................328
Tread wea r..................................... 321
Uniform Tire Quality Grading
Standards ...................................... 320
Uniform Tire Quality Grading
Standards (definition) ....................326
Unladen weight (definition) ............327
Wear indicator (definition) .............328
Wheel rim (definition) ....................326
see Flat tire
Towing
Important safety guidelines ...........300
Installing the towing eye ................301
Removing the towing eye ...............301
With the rear axle raised ................302
Towing away
With both axles on the ground .......302
Tow-starting
Emergency engine starting ............303
Important safety notes ..................300
Installing the towing eye ................301
Removing the towing eye ...............301
Transmission
Selector lever ................................ 149
see Automatic transmission
see Manual transmission
Transporting the vehicle ..................302
Trim pieces (cleaning instructions) .284
Trip computer (on-board computer) 195
Trip odometer Calling up ....................................... 195
Resetting (on-board computer) ......196
Trunk
Emergency release ..........................81
Important safety notes ....................79
Locking separately ...........................81
Opening/closing (manually from
outside) ............................................ 80
Opening (automatically from
outside) ............................................ 80
Overview .......................................... 79Trunk lid
Display message ............................ 236
Opening/closing .............................. 79
Opening dimensions ......................350
Trunk load (maximum) ......................350
Trunk partition Display message ............................ 237
General notes .................................. 88
Opening/closing .............................. 89
Turn signals
Changing bulbs (front) ...................117
Display message ............................ 221
Switching on/off ........................... 110
Type identification plate
see Vehicle identification plate U
Unlocking Emergency unlocking .......................78
From inside the vehicle (central
unlocking button) ............................. 77 V
Vanity mirror (in the sun visor) ........258
Vehicle Correct use ...................................... 25
Data acquisition ............................... 26
Display message ............................ 235
Equipment ....................................... 21
Individual settings ..........................202
Limited Warranty ............................. 25
Loading .......................................... 317
Locking (in an emergency) ...............78
Locking (SmartKey) .......................... 70
Lowering ........................................ 332
Maintenance .................................... 22
Parking for a long period ................ 162
Pulling away ................................... 142
Raising ........................................... 330
Reporting problems .........................25
Securing from rolling away ............329
Towing away .................................. 300
Tow-starting ................................... 300
Transporting .................................. 302
Unlocking (in an emergency) ...........78 18
Index

Tires
Display messages Possible causes/consequences and
0050
0050Solutions Check
Check
Tire Pressure Soon Tire Pressure Soon Canada only:
The tire pressure loss warning system has detected a significant
loss in pressure.
A warning tone also sounds.
G WARNING
With tire pressures which are too low, there is a risk of the
following hazards:
R they may burst, especially as the load and vehicle speed
increase.
R they may wear excessively and/or unevenly, which may greatly
impair tire traction.
R the driving characteristics, as well as steering and braking, may
be greatly impaired.
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.
X Secure the vehicle against rolling away (Y page 159).
X Check the tires and, if necessary, follow the instructions for a
flat tire (Y page 289).
X Check the tire pressures and, if necessary, correct the tire
pressure.
X Restart the tire pressure loss warning system when the tire
pressure is correct (Y page 314).Check Check
Tire
TirePressure
Pressure
Then Restart Run
Then Restart Run
Flat Indicator Flat Indicator Canada only:
The tire pressure loss warning system generated a display
message and has not been restarted since.
X
Set the correct tire pressure in all four tires.
X Restart the tire pressure loss warning system (Y page 314).Run Flat Indicator Run Flat Indicator
Inoperative Inoperative Canada only:
The tire pressure loss warning system is faulty.
X
Visit a qualified specialist workshop. Please Correct Please Correct
Tire Pressure Tire Pressure The tire pressure is too low in at least one of the tires, or the tire
pressure difference between the wheels is too great.
X
Check the tire pressures at the next opportunity (Y page 314).
X If necessary, correct the tire pressure.
X Restart the tire pressure monitor (Y page 317). Display
messages
233On-board computer and displays Z

when adjusting the tire pressure
(Y
page 310).
i The actual values for tires are vehicle-
specific and may deviate from the values in
the illustration. Checking the tire pressures
Important safety notes Observe the notes on tire pressure
(Y
page 310).
Information on air pressure for the tires on
your vehicle can be found:
R on the vehicle's Tire and Loading
Information placard on the B-pillar
(Y page 317)
R on the tire pressure label on the fuel filler
flap ( Ypage 157)
R in the "Tire pressure" section
Checking tire pressures manually To determine and set the correct tire
pressure, proceed as follows:
X Remove the valve cap of the tire that is to
be checked.
X Press the tire pressure gauge securely onto
the valve.
X Read the tire pressure and compare it with
the recommended value on the Tire and
Loading Information placard (Y page 310).
X If the tire pressure is too low, increase it to
the recommended value.
X If the tire pressure is too high, release air
by pressing down the metal pin in the valve.
Use the tip of a pen, for example. Then,
check the tire pressure again using the tire
pressure gauge.
X Screw the valve cap onto the valve.
X Repeat these steps for the other tires. Tire pressure loss warning system
(Canada only)
General notes While the vehicle is in motion, the tire
pressure loss warning system monitors the
set tire pressure using the rotational speed of
the wheels. This enables the system to detect
significant pressure loss in a tire. If the speed
of rotation of a wheel changes as a result of
a loss of pressure, a corresponding warning
message will appear in the multifunction
display.
You can recognize the tire pressure loss
warning by the Run Flat Indicator Run Flat Indicator
Active Press 'OK' to Restart
Active Press 'OK' to Restart message
which appears in the Service
Servicemenu of the
multifunction display. Information on the
message display can be found in the
"Restarting the tire pressure loss warning
system" section (Y page 314).
Important safety notes The tire pressure warning system does not
warn you of an incorrectly set tire pressure.
Observe the notes on the recommended tire
pressure (Y
page 310).
The tire pressure loss warning does not
replace the need to regularly check the tire
pressure. An even loss of pressure on several
tires at the same time cannot be detected by
the tire pressure loss warning system.
The tire pressure monitor is not able to warn
you of a sudden loss of pressure, e.g. if the
tire is penetrated by a foreign object. In the
event of a sudden loss of pressure, bring the
vehicle to a halt by braking carefully. Avoid
abrupt steering maneuvers.
The function of the tire pressure loss warning
system is limited or delayed if:
R snow chains are mounted on your vehicle's
tires.
R road conditions are wintry.
R you are driving on sand or gravel. Tire pressure
313Wheels and tires Z

R
you adopt a very sporty driving style
(cornering at high speeds or driving with
high rates of acceleration).
R you drive with a heavy load.
Restarting the tire pressure loss
warning system Restart the tire pressure loss warning system
if you have:
R changed the tire pressure
R changed the wheels or tires
R mounted new wheels or tires
X Before restarting, make sure that the tire
pressures are set properly on all four tires
for the respective operating conditions.
The recommended tire pressures can be
found on the Tire and Loading Information
placard on the B-pillar on the driver's side
or the tire pressure table on the fuel filler
flap.
The tire pressure loss warning system can
only give reliable warnings if you have set
the correct tire pressure. If an incorrect tire
pressure is set, these incorrect values will
be monitored.
X Also observe the notes in the section on tire
pressures ( Ypage 310).
X Make sure that the SmartKey is in position
2 in the ignition lock (Y page 139).
X Press the 0059or0065 button on the
steering wheel to select the Service Service
menu.
X Press the 0063or0064 button to select
Tire Pressure
Tire Pressure .
X Press the 0076button.
The Run Flat Indicator Active
Run Flat Indicator Active
Press 'OK' to Restart
Press 'OK' to Restart message
appears in the multifunction display. If you wish to confirm the restart:
X
Press the 0076button.
The Tire Pressure Now OK? Tire Pressure Now OK? message
appears in the multifunction display.
X Press the 0063or0064 button to select
Yes
Yes .
X Press the 0076button.
The Run Flat Indicator Restarted
Run Flat Indicator Restarted
message appears in the multifunction
display.
After a teach-in period, the tire pressure
loss warning system will monitor the set
tire pressures of all four tires.
If you wish to cancel the restart:
X Press the 0038button.
or
X If the Tire Pressure Now OK? Tire Pressure Now OK? message
appears, use the 0063or0064 button to
select Cancel
Cancel .
X Press the 0076button.
The tire pressure values stored at the last
restart will continue to be monitored. Tire pressure monitor
General notes If a tire pressure monitor is installed, the
vehicle's wheels have sensors that monitor
the tire pressures in all four tires. The tire
pressure monitor warns you if the pressure
drops in one or more of the tires. The tire
pressure monitor only functions if the correct
sensors are installed on all wheels.
Information on tire pressures is displayed in
the multifunction display. After a few minutes
of driving, the current tire pressure of each
tire is shown in the Service Servicemenu of the
multifunction display. 314
Ti
re pressureWhe els and tires

the purchasers. The TIN is made up of the
manufacturer's identity code, tire size, tire
type code and the manufacturing date.
Load bearing index
The load bearing index (also load index) is a
code that contains the maximum load bearing
capacity of a tire.
Traction
Traction is the result of friction between the
tires and the road surface.
Treadwear indicators
Narrow bars (tread wear bars) that are
distributed over the tire tread. If the tire tread
is level with the bars, the wear limit of 00CDin
(1.6 mm) has been reached.
Occupant distribution
The distribution of occupants in a vehicle at
their designated seating positions.
Total load limit
Rated cargo and luggage load plus
68 kilograms (150 lb) multiplied by the
number of seats in the vehicle. Changing a wheel
Flat tire
You can find information on what to do in the
event of a flat tire in the "Breakdown
assistance" section (Y page 289).
Information on driving with MOExtended tires
in the event of a flat tire can be found under
"MOExtended tires (tires with run-flat
characteristics" (Y page 290).
The "Breakdown assistance" section
(Y page 289) contains information and notes
on how to deal with a flat tire. Information on
driving with MOExtended tires in the event of
a flat tire can be found under "MOExtended
tires (tires with run-flat characteristics"
(Y page 290). Rotating the wheels
G
WARNING
Interchanging the front and rear wheels may
severely impair the driving characteristics if
the wheels or tires have different dimensions.
The wheel brakes or suspension components
may also be damaged. There is a risk of
accident.
Rotate front and rear wheels only if the wheels
and tires are of the same dimensions.
! On vehicles equipped with a tire pressure
monitor, electronic components are
located in the wheel.
Tire-mounting tools should not be used
near the valve. This could damage the
electronic components.
Only have tires changed at a qualified
specialist workshop.
Always pay attention to the instructions and
safety notes when changing a wheel
(Y page 329).
The wear patterns on the front and rear tires
differ, depending on the operating conditions.
Rotate the wheels before a clear wear pattern
has formed on the tires. Front tires typically
wear more on the shoulders and the rear tires
in the center.
If your vehicle's tire configuration allows, you
can rotate the wheels according to the
intervals in the tire manufacturer's warranty
book in your vehicle documents. If no
warranty book is available, the tires should be
rotated every 3,000 to 6,000 mile s (5,000 to
10,000 km), or earlier if tire wear requires. Do
not change the direction of wheel rotation.
Clean the contact surfaces of the wheel and
the brake disc thoroughly every time a wheel
is rotated. Check the tire pressure and, if
necessary, restart the tire pressure loss
warning system or the tire pressure monitor. 328
Changing a wheelWheels and tires