spare wheel MERCEDES-BENZ SL ROADSTER 2016 Owners Manual

Problems with cooling with air
dehumidification ............................1
25
Setting the air distribution ............. 126
Setting the air vents ..................... .129
Setting the airflow ......................... 126
Setting the climate mode (AIR
FLOW) ............................................ 125
Setting the temperature ................ 125
Switching air-recirculation mode
on/off ............................................ 128
Switching on/off ........................... 124
Switching residual heat on/off ...... 129
Switching the rear window heat-
ing on/off ...................................... 127
Switching the ZONE function on/
off ................................................. .126
THERMOTRONIC (2-zone) auto-
matic climate control ..................... 123
Cockpit
Overview .......................................... 30
see Instrument cluster
Collapsible emergency spare
wheel
see Emergency spare wheel
COMAND Online
Driving dynamics display (except
Mercedes-AMG vehicles) ....... 175, 177
Driving dynamics display
(Mercedes-AMG vehicles) .............. 180
Switching on/off ........................... 253
Combination switch .......................... 115
Connecting a USB device
See also Digital Owner's Manual ... 253
Consumption statistics (on-board
computer) .......................................... 202
Controller .......................................... .254
Convenience closing feature .............. 91
Convenience opening/closing (air-
recirculation mode) ........................... 128
Coolant (engine)
Checking the level ......................... 279
Display message ............................ 229
Important safety notes .................. 325
Temperature (on-board computer,Mercedes-AMG vehicles) .............. .213
Temperature gauge ........................ 200
Warning lamp ................................. 249 Cooling
see Climate control
Copyright ............................................. 29
Cornering light function
Display message ............................ 228
Function/notes ............................ .116
Cruise control
Cruise control lever ....................... 160
Deactivating ................................... 161
Display message ............................ 236
Driving system ............................... 159
Important safety notes .................. 159
LIM indicator lamp ......................... 160
Selecting ........................................ 160
Setting a speed .............................. 161
Storing and maintaining current
speed ............................................. 160
Cup holder
Centre console .............................. 266
Important safety notes .................. 266 D
Data see Technical data
Data carrier
Selecting ........................................ 205
Data modem mode
Telephone with Bluetooth ®
(SAP
profile) .......................................... .259
Daytime driving lights
Display message ............................ 228
Function/notes ............................ .113
Switching on/off (on-board com-
puter) ............................................. 209
Dealership
see Qualified specialist workshop
Declarations of conformity ................. 25
Delayed switch-off
Exterior lighting (on-board com-
puter) ............................................. 210
Interior lighting .............................. 211
Diagnostics connection ......................27
Digital Owner's Manual
Help ................................................ .22
Introduction .....................................22
Digital speedometer .........................203 Index
7

Distance Pilot DISTRONIC with
Steering Pilot and Stop&Go Pilot ... 168
RACE START (Mercedes-AMG
vehicles) ........................................ 173
Speed limiter ................................. 170
Driving systems
Active Blind Spot Assist ................. 193
Active Driving Assistance pack-
age ................................................ .193
Active Lane Keeping Assist ............ 195
Active Parking Assist ..................... 183
ATTENTION ASSIST ........................ 190
Cruise control ................................ 159
Display message ............................ 231
Distronic Plus ................................ 161
HOLD function ............................... 172
PARKTRONIC ................................. 180
Reversing camera .......................... 187
Traffic Sign Assist .......................... 191
Driving tips
AMG ceramic brakes ..................... 158
Aquaplaning ................................... 158
Automatic transmission ................. 144
Brakes .......................................... .157
Distance Pilot DISTRONIC ............. 167
Downhill gradient ........................... 157
Driving abroad ............................... 113
Driving in winter ............................ .159
Driving on flooded roads ................ 158
Driving on wet roads ..................... .158
Fuel ................................................ 156
General .......................................... 155
Icy road surfaces ........................... 159
Limited braking efficiency on sal-
ted roads ....................................... 158
New brake pads/linings ................ 158
Running-in tips ............................... 131
Snow chains .................................. 307
Subjecting brakes to a load ........... 157
Symmetrical dipped bea m............. 113
Wet road surface ........................... 157
DVD video
Operating (on-board computer) ..... 205
See also Digital Owner's Manua l... 253
DYNAMIC SELECT button (all vehi-
cles except Mercedes-AMG vehi-
cles) .................................................... 139 DYNAMIC SELECT controller
(Mercedes-AMG vehicles)
................. 140 E
EASY-ENTRY feature Activating/deactivating ................. 211
Function/note s............................. 106
EASY-EXIT feature
Crash-responsive ........................... 108
Function/note s............................. 106
Switching on/of f........................... 211
EBD (electronic brake force distri-
bution)
Display message ............................ 219
Function/note s................................ 71
ECO display
Function/note s............................. 156
On-board computer ....................... 202
ECO start/stop function
Automatic engine start .................. 136
Automatic engine switch-off .......... 135
Deactivating/activating ................. 136
General information ....................... 135
Important safety notes .................. 135
Introduction ................................... 135
Electromagnetic compatibility
Declaration of conformity ................ 25
Electronic Stability Program
see ESP ®
(Electronic Stability Program)
Emergency
Automatic measures after an acci-
dent ................................................. 54
Emergency key
Unlocking the driver's door .............. 84
Emergency key element
Function/note s................................ 79
General notes .................................. 79
Inserting .......................................... 79
Locking vehicle ................................ 84
Removing ......................................... 79
Emergency release
Driver's door .................................... 84
Emergency spare wheel
General notes ................................ 318
Important safety notes .................. 318
Inflating the collapsible spare
wheel ............................................. 319 Index
9

Removing ......................................
.318
Storage location ............................ 318
Technical data ............................... 318
Emergency unlocking
Vehicle ............................................. 84
Engine
Display message ............................ 229
ECO start/stop function ................ 135
Jump-starting ................................. 296
Running irregularl y......................... 138
Starting problems .......................... 138
Starting the engine with the key .... 134
Starting with KEYLESS GO ............. 134
Stopping ........................................ 153
Tow-starting (vehicle) ..................... 301
Warning lamp (engine diagnos-
tics) ............................................... 249
Engine electronics
Notes ............................................. 320
Problem (fault) ............................... 138
Engine oil
Additives ........................................ 325
Checking the oil level ..................... 277
Checking the oil level using the
dipstick .......................................... 278
Display message ............................ 230
Filling capacity ............................... 325
General notes ................................ 324
Notes about oil grade s................... 324
Notes on oil level/consumption .... 277
Temperature (on-board computer, Mercedes-AMG vehicles) ............... 213
Topping up ..................................... 278
Entering an address
See also Digital Owner's Manua l... 253
Environmental protection
Returning an end-of-life vehicle ....... 23
ESP ®
(Electronic Stability Pro-
gram)
AMG menu (on-board computer) ... 213
Characteristics ................................. 67
Deactivating/activating (button
in Mercedes-AMG vehicles) ............. 70
Deactivating/activating (except
Mercedes‑ AMG vehicles) ................. 69
Display message ............................ 217
Function/note s................................ 67
General notes .................................. 67 Important safety guidelines ............. 67
Warning lamp ................................. 246
ETS/4ETS (Electronic Traction Sys-
tem) ...................................................... 67
Exhaust pipe (cleaning instruc-
tions) .................................................. 285
Exterior lighting
Settings options ............................. 113
see Lights
Exterior mirrors
Adjusting ....................................... 108
Anti-dazzle mode (automatic) ........ 109
Folding in when locking (on-board computer) ...................................... 212
Folding in/out (automatically )....... 109
Folding in/out (electrically) ........... 109
Out of position (troubleshooting) ... 109
Parking position ............................. 110
Resetting ....................................... 109
Storing settings (memory func-
tion) ............................................... 111 F
Fault message see Display messages
Favourites
Overview ........................................ 254
Filler cap
see Fuel filler flap
Fire extinguisher ............................... 287
First-aid kit ......................................... 287
Fitting a wheel
Fitting a wheel ............................... 316
Lowering the vehicle ...................... 316
Preparing the vehicle ..................... 313
Raising the vehicle ......................... 313
Removing a wheel .......................... 315
Securing the vehicle against roll-
ing away ........................................ 313
Flat tyre
MOExtended tyre s......................... 289
Preparing the vehicle ..................... 289
TIREFIT kit ...................................... 290
see Emergency spare wheel
Floormat ............................................. 274
Foglamps
Extended rang e.............................. 116 10
Index

SPORT handling mode
Deactivating/activating
(Mercedes-AMG vehicles) ................70
Warning lamp ................................. 248
Start/stop function
see ECO start/stop function
Starting (engine) ................................ 133
STEER CONTROL ..................................74
Steering
Display message ............................2 41
Steering Assist and Stop&Go Pilot
(DISTRONIC PLUS)
Activating/deactivating ................. 207
Steering assistant STEER CON-
TROL
see STEER CONTROL
Steering Pilot and Stop&Go Pilot
Display message ............................ 235
Steering wheel
Adjusting (electrically) ................... 106
Button overview ............................... 33
Buttons (on-board computer) ......... 200
Important safety notes .................. 106
Storing settings (memory func-
tion) ............................................... 111
Steering wheel gearshift paddles .... 147
Stopwatch (RACETIMER) ................... 213
Stowage areas ................................... 262
Stowage compartments
Armrest (under) ............................ .262
Centre console .............................. 263
Centre console (rear) ..................... 263
Cup holder ..................................... 266
Glove compartment ....................... 262
Important safety information ......... 262
Rear ............................................... 264
Spectacles compartment .............. .263
Stowage net ....................................... 264
Stowage space
Display message ............................ 241
Stowage net ................................... 264
Umbrella holder ............................ .263
Stowage well beneath the boot
floor .................................................... 266
Summer tyres ................................... .306
Sun visor ............................................ 267 Surround lighting (on-board com-
puter)
................................................. .210
Suspension settings
Active Body Control (ABC) (exceptMercedes-AMG vehicles) .............. .176
Active Body Control (ABC)
(Mercedes-AMG vehicles) .............. 179
SETUP (on-board computer) .......... 213
Switching on media mode
Via the device lis t.......................... 260 T
Tail lamps Display message ............................ 228
see Lights
Technical data
Capacities ...................................... 322
Emergency spare wheel ................. 318
Information .................................... 320
Tyres/wheels ................................. 317
Vehicle data ................................... 327
Telephone
Accepting a call (multifunction
steering wheel) .............................. 206
Authorising a mobile phone (con-
necting) ......................................... 256
Connecting a Mobile phone (gen-
eral information) ............................ 256
Display message ............................ 241
Menu (on-board computer) ............ 205
Number from the phone book ........ 206
Redialling ....................................... 206
Rejecting/ending a call ................. 206
See also Digital Owner's Manua l... 253
Switching between mobile
phones ........................................... 257
Telephone compartment ................ 262
Telephone module with Bluetooth ®
(SAP profile) Activating and connecting the
module ........................................... 258
Charging a mobile phone ............... 260
Connecting the mobile phone ........ 259
Connecting the module using a
USB cable ...................................... 258
Data modem mode ........................ 259
Installing the module ..................... 258 18
Index

LIM (Distance Pilot DISTRONIC) .... 163
LIM (variable limiter) ...................... 170
Parking brake ................................ 248
PASSENGER AIR BAG ...................... 40
Reserve fuel ................................... 249
Seat belt ........................................ 244
Tyre pressure monitor ................... 252
Warning triangle ................................ 287
Washer fluid
Display messag e............................ 242
Wheel and tyre combinations
Tyres .............................................. 317
Wheel bolt tightening torque ........... 316
Wheel chock ...................................... 313
Wheels
Changing a whee l.......................... 312
Changing/replacing ....................... 312
Checking ........................................ 304
Cleaning ......................................... 284
Emergency spare wheel ................. 318
Fitting a new wheel ........................ 316
Fitting a wheel ............................... 313
Important safety notes .................. 304
Information on driving .................... 304
Overview ........................................ 304
Removing a whee l.......................... 315
Storing ........................................... 313
Tightening torque ........................... 316
Wheel size/tyre size ...................... 317
Windows
Cleaning ......................................... 284
see Side windows
Windscreen
Demisting ...................................... 126
Windscreen washer fluid
see Windscreen washer system
Windscreen washer system
Important safety notes .................. 326
Topping up ..................................... 280
Windscreen wipers
Display message ............................ 242
Problem (malfunction) ................... 121
Replacing the wiper blades ............ 119
Switching on/of f........................... 118
Winter operation
Important safety notes .................. 306
Overview ........................................ 306
Slippery road surfaces ................... 159 Snow chains .................................. 307
Winter tyres
Limiting the speed (on-board com-
puter) ............................................. 211
M+S tyres ...................................... 306
Wiper blades
Cleaning ......................................... 284
Important safety notes .................. 119
Replacing ....................................... 119
Workshop
see Qualified specialist workshop Z
ZONE function Switching on/of f........................... 126 Index
21

Flat tyre
Preparing the vehicle
Your vehicle may be equipped with: R tyres with run-flat characteristics
(MOExtended tyres) (Y page 289)
Vehicle preparation is not necessary on vehi- cles with MOExtended tyres.
R a TIREFIT kit (Y page 288)
R an emergency spare wheel (certain countries
only) (Y page 318)
Vehicles with MOExtended tyres are not equip-
ped with a TIREFIT kit at the factory. It is there-
fore recommended that you additionally equip
your vehicle with a TIREFIT kit if you fit tyres that do not feature run-flat characteristics, e.g. win-
ter tyres. A TIREFIT kit can be obtained from a
qualified specialist workshop.
Information on changing and fitting a wheel
(Y page 312).
X Stop the vehicle as far away as possible from
traffic on solid, non-slippery and level ground.
X Switch on the hazard warning lamps.
X Safeguard the vehicle against rolling away
(Y page 153).
X If possible, bring the front wheels into the
straight-ahead position.
X Switch off the engine.
X Vehicles without KEYLESS-GO: remove the
key from the ignition lock.
X Vehicles with KEYLESS-GO: open the driv-
er's door.
The on-board electronics now have status 0.
This is the same as the key having been
removed.
X Vehicles with KEYLESS-GO: remove the
Start/Stop button from the ignition lock
(Y page 132).
X Make sure that the passengers are not endan-
gered as they do so. 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.
X Place the warning triangle at a suitable dis-
tance (Y page 287). Observe legal require-
ments. MOExtended tyres (tyres with run-flat
characteristics)
General notes With MOExtended tyres (tyres with run-flat char-
acteristics), you can continue to drive your vehi- cle even if there is a total loss of pressure in one
or more tyres. The affected tyre must not show
any clearly visible damage.
You can recognise MOExtended tyres by the
MOExtended marking which appears on the tyre wall. You will find this marking next to the tyre
size designation, the load-bearing capacity and
the speed index.
MOExtended tyres may only be used in conjunc-tion with an activated tyre pressure loss warning
system or tyre pressure monitor.
If a pressure loss warning message appears in the multifunction display:
R observe the instructions in the display mes-
sages (Y page 237)
R check the tyre for damage
R if driving on, observe the following notes
The driving distance possible in run-flat mode is
approximately 80 km when the vehicle is parti-
ally laden and approximately 30 km when the
vehicle is fully laden.
In addition to the vehicle load, the driving dis-
tance possible depends upon:
R vehicle speed
R road condition
R outside temperature
The driving distance possible in run-flat mode
may be reduced by extreme driving conditions/
manoeuvres, or it can be increased through a
moderate style of driving.
The driving distance possible in run-flat mode is counted from the moment the tyre pressure loss
warning appears in the multifunction display.
You must not exceed a maximum speed of
80 km/h.
When replacing one or all tyres, observe the fol-
lowing specifications for your vehicle's tyres:
R size
R type and
R the "MOExtended" mark
If a tyre has gone flat and cannot be replaced
with an MOExtended tyre, a standard tyre may
be used as a temporary measure. Make sure Flat tyre
289Breakdown assistance Z

Important safety notes
G
WARNING
If wheels and tyres of the wrong size are used, the wheel brakes or suspension components
may be damaged. There is a risk of an acci-
dent.
Always replace wheels and tyres with those
that fulfil the specifications of the original
part.
When replacing wheels, make sure to fit the
correct:
R designation
R type
When replacing tyres, make sure to fit the
correct:
R designation
R manufacturer
R type G
WARNING
A flat tyre severely impairs the driving, steer-
ing and braking characteristics of the vehicle.
There is a risk of accident.
Tyres without run-flat characteristics:
R do not drive with a flat tyre.
R immediately replace the flat tyre with your
emergency spare wheel or spare wheel, or
consult a qualified specialist workshop.
Tyres with run-flat characteristics:
R pay attention to the information and warn-
ing notices on MOExtended tyres (tyres
with run-flat characteristics).
Accessories that are not approved for your vehi-
cle by Mercedes-Benz or are not being used cor- rectly can impair the operating safety.
Before purchasing and using non-approved
accessories, visit a qualified specialist work-
shop and enquire about:
R suitability
R legal stipulations
R factory recommendations Further information regarding wheels and tyres
can be found under "Wheel/tyre combinations"
(Y page 317).
You can ask for information regarding permitted
wheel-tyre combinations at a Mercedes-Benz
Service Centre.
Information on tyre pressures can be found:
R in the tyre pressure table in the fuel filler flap
(Y page 152)
R in the "Tyre pressure" section
Modification work on the brake system and
wheels is not permitted. The use of spacers or
brake dust shields is not permitted. This inva-
lidates the general operating permit for the vehi-
cle.
i Further information on wheels and tyres can
be obtained at any qualified specialist work-
shop. Operation
Information on driving
Check the tyre pressures when the vehicle is
heavily laden and adjust prior to a trip.
While driving, pay attention to vibrations, noises
and unusual handling characteristics, e.g. pull-
ing to one side. This may indicate that the
wheels or tyres are damaged. If you suspect that
a tyre is defective, reduce your speed immedi-
ately. Stop the vehicle as soon as possible to
check the wheels and tyres for damage. Hidden tyre damage could also be causing the unusual
handling characteristics. If you find no signs of
damage, have the tyres and wheels checked at a qualified specialist workshop.
When parking your vehicle, make sure not to
squash the tyre sidewalls. If you cannot avoid
driving over obstacles, e.g. kerbs, do so slowly
and at an obtuse angle only. You could other-
wise damage the wheel rims and tyres. Regular checking of wheels and tyres
G
WARNING
Damaged tyres can cause tyre inflation pres-
sure loss. As a result, you could lose control of your vehicle. There is a risk of accident. 304
OperationWheels and ty
res

Check the tyres regularly for signs of damage
and replace any damaged tyres immediately.
Check wheels and tyres for damage at least
once a month. Check wheels and tyres after
driving off-road or on rough roads. Damaged
wheels can cause a loss of tyre pressure. Pay
particular attention to damage such as:
R cuts in the tyres
R punctures
R tears in the tyres
R bulges on the tyres
R deformation or severe corrosion on wheels
Regularly check the tyre tread depth and the
condition of the tread across the whole width of
the tyre (Y page 305). If necessary, turn the
front wheels to full lock in order to inspect the
inner side of the tyre surface.
All wheels must have a valve cap to protect the valve against dirt and moisture. Do not fit any-
thing onto the valve other than the standard
valve cap or other valve caps approved for your
vehicle by Mercedes-Benz. Do not fit any other
valve caps or systems, e.g. tyre pressure moni-
toring systems.
Regularly check the pressure of all the tyres,
particularly prior to long trips. Adjust the tyre
pressure as necessary (Y page 307).
Observe the notes on the emergency spare
wheel (Y page 318).
The service life of tyres depends on various fac- tors, including the following:
R driving style
R tyre pressure
R mileage Notes on the tyre tread
G
WARNING
Insufficient tyre tread will reduce tyre trac-
tion. The tyre is no longer able to dissipate
water. This means that on wet road surfaces, the risk of aquaplaning increases, in particularwhere speed is not adapted to suit the driving
conditions. There is a risk of accident.
If the tyre pressure is too high or too low, tyres may exhibit different levels of wear at differ-
ent locations on the tyre tread. Thus, you should regularly check the tread depth and
the condition of the tread across the entire
width of all tyres.
Minimum tyre tread depth for:
R summer tyres: 3 mm
R M+S tyres: 4 mm
For safety reasons, replace the tyres before
the legally prescribed limit for the minimum
tyre tread depth is reached. Selecting, fitting and replacing tyres
G
WARNING
Exceeding the stated tyre load-bearing capa-
city and the approved maximum speed could
lead to tyre damage or the tyre bursting. There is a risk of accident.
Therefore, only use tyre types and sizes
approved for your vehicle model. Observe the
tyre load rating and speed rating required for your vehicle.
Pay special attention to country-specific
requirements for tyre approval. These require-
ments can stipulate a specific tyre type for your
vehicle. Furthermore, the use of certain tyre
types in certain regions and areas of operation
can be highly beneficial. You can find further
information regarding tyres at specialist tyre
retailers, at qualified specialist workshops or at
any Mercedes-Benz Service Centre.
R Only fit tyres and wheels of the same type and
make.
Exception: it is permissible to fit a different
type or make in the event of a flat tyre.
Observe the "MOExtended tyres (tyres with
run-flat characteristics)" section
(Y page 289).
R Only fit tyres of the correct size onto the
wheels.
R Run in new tyres at moderate speeds for the
first 100 km. They only reach their full per-
formance after this distance.
R Do not drive with tyres which have too little
tread depth. This otherwise significantly Operation
305Wheels and tyres Z

reduces the traction on wet roads (aquaplan-
ing).
R Replace the tyres after six years at the latest,
regardless of wear.
Observe the notes on the emergency spare
wheel (Y page 318). MOExtended tyres (tyres with run-flat
characteristics)
With MOExtended tyres (tyres with run-flat char-
acteristics), you can continue to drive your vehi- cle even if there is a total loss of pressure in one
or more tyres.
MOExtended tyres may only be used in conjunc- tion with an activated tyre pressure loss warning system or with an activated tyre pressure mon-
itor and on wheels specifically tested by
Mercedes-Benz.
Notes on driving with MOExtended tyres with a
flat tyre (Y page 289).
Vehicles with MOExtended tyres are not equip-
ped with a TIREFIT kit at the factory. It is there-
fore recommended that you additionally equip
your vehicle with a TIREFIT kit if you fit tyres that do not feature run-flat characteristics, e.g. win-
ter tyres. A TIREFIT kit can be obtained from a
qualified specialist workshop. Winter operation
General notes
Have your vehicle winterproofed at a qualified
specialist workshop at the onset of winter.
Observe the notes in the "Changing a wheel"
section (Y page 312). Driving with summer tyres
At temperatures below +7 †, summer tyres lose
elasticity and therefore traction and braking
power. Change the tyres on your vehicle to
M+S tyres. Using summer tyres at very cold
temperatures could cause tears to form,
thereby damaging the tyres permanently.
Mercedes-Benz cannot accept responsibility for
this type of damage. G
WARNING
Damaged tyres can cause tyre inflation pres-
sure loss. As a result, you could lose control of your vehicle. There is a risk of accident.
Check the tyres regularly for signs of damageand replace any damaged tyres immediately. M+S tyres
G
WARNING
M+S tyres with a tyre tread depth of less than 4 mm are not suitable for use in winter as they
do not provide sufficient traction. There is a
risk of accident.
M+S tyres with a tread depth of less than
4 mm must be replaced.
At temperatures below +7 †, use winter tyres or all-season tyres. Both are marked with M+S.
Only winter tyres bearing the isnowflake
symbol in addition to the M+S marking provide
the best possible grip in wintry road conditions.
Only these tyres will allow driving safety sys-
tems such as ABS and ESP ®
to function opti-
mally in winter. These tyres have been devel-
oped specifically for driving in snow.
Use M+S tyres of the same make and tread on all wheels to maintain safe handling characteris-
tics.
Always observe the maximum permissible
speed specified for the M+S tyres you have fit-
ted.
If you fit M+S tyres that have a lower maximum
permissible speed than that of the maximum
design speed of the vehicle, affix a correspond-
ing warning label in the driver's field of vision.
This can be obtained at a qualified specialist
workshop.
Under these circumstances, you should also
restrict the maximum design speed of the vehi- cle using permanent SPEEDTRONIC so that it
does not exceed the maximum permissible
speed for the M+S tyres (Y page 172).306
Winter operationWheels and tyres

When you have fitted the M+S tyres:
X Check the tyre pressures (Y page 307).
X Restart the tyre pressure loss warning system
(Y page 309).
X Restart the tyre pressure monitor
(Y page 311).
Information about driving with an emergency
spare wheel (Y page 318). Snow chains
G
WARNING
If you have fitted snow chains to the front
wheels, they may scrape against the vehicle
body or chassis components. This could
cause damage to the vehicle or the tyres.
There is a risk of an accident.
To avoid hazardous situations:
R never fit snow chains on the front wheels
R fit snow chains to the rear wheels in pairs.
For safety reasons, Mercedes-Benz recom-
mends that you only use snow chains that have been specifically approved for your vehicle by
Mercedes-Benz, or that are of a corresponding
standard of quality. For more information,
please contact a qualified specialist workshop.
If you intend to fit snow chains, please bear the
following points in mind:
R snow chains cannot be fitted to all wheel-tyre
combinations. Permissible wheel-tyre combi-
nations (Y page 317).
R only use snow chains if the road surface is
completely snow-covered. Remove the snow
chains as soon as possible when you come to
a road that is not snow-covered.
R local regulations may restrict the use of snow
chains. Observe the appropriate regulations if you wish to fit snow chains.
R do not exceed the maximum permissible
speed of 50 km/h.
R on vehicles with Active Body Control (ABC),
you must drive at a raised vehicle level if snow
chains have been fitted (Y page 175).
When pulling away with snow chains fitted, you
can deactivate ESP ®
(Y page 67). This way you
can allow the wheels to spin in a controlled
manner, achieving increased driving force (cut-
ting action). Information about driving with an emergency
spare wheel (Y
page 318). Tyre pressure
Tyre pressure specifications
G
WARNING
Underinflated or overinflated tyres pose the
following risks:
R the tyres may burst, especially as the load
and vehicle speed increase.
R the tyres may wear excessively and/or
unevenly, which may greatly impair tyre
traction.
R the driving characteristics, as well as steer-
ing and braking, may be greatly impaired.
There is a risk of an accident.
Observe the recommended tyre pressure and check the tyre pressure of all the tyres includ-
ing the spare wheel:
R at least every two weeks
R when the load changes
R before embarking on a longer journey
R for changed operating conditions, e.g. off-
road driving
If necessary, correct the tyre pressure. G
WARNING
If you fit unsuitable accessories onto tyre
valves, the tyre valves may be overloaded and malfunction, which can cause tyre pressure
loss. Due to their design, retrofitted tyre pres-
sure monitors keep the tyre valve open. This
can also result in tyre pressure loss. There is a risk of accident.
Only screw standard valve caps or valve caps
specifically provided by Mercedes-Benz for
your vehicle onto the tyre valve. G
WARNING
If the tyre pressure drops repeatedly, the
wheel, valve or tyre may be damaged. Tyre
pressure that is too low may result in a tyre
blow-out. There is a risk of accident. Tyre pressure
307Wheels and tyres
Z