emergency towing MERCEDES-BENZ SL-Class 2001 R129 Owner's Manual

37 Central locking system
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Automatic central locking
The central locking switch also operates the automatic
central locking.
With the automatic central locking system activated, the
doors and trunk are locked at vehicle speeds of approx.
9 mph (15 km/h) or more. The fuel filler flap remains
unlocked.
To a ctiva te:
With key in steering lock position 2 hold upper portion
of switch (1) for a minimum of 5 seconds.
To deactivate:
With key in steering lock position 2 hold lower portion
of switch (2) for a minimum of 5 seconds.
Notes:
If doors are unlocked with the central locking switch
after activating the automatic central locking, and
neither door is opened, then the doors remain unlocked
even at vehicle speeds of approx. 9 mph (15 km/h) or
more.If a door is opened from the inside at speeds of approx.
9 mph (15 km/h) or less with the automatic central
locking activated, the door will again be automatically
locked at speeds of approx. 9 mph (15 km/h) or more.
Important!
When towing the vehicle, or with the vehicle on a
dynamometer test stand, please, note the following:
With the automatic central locking activated and the
key in steering lock position 2, the vehicle doors will
lock if the left front wheel as well as the right rear
wheel spin are turning at vehicle speeds of approx.
9mph (15km/h) or more.
To prevent the vehicle door locks from locking,
deactivate the automatic central locking.
Emergency unlocking in case of accident
The doors unlock automatically a short time after a
strong deceleration is detected, such as in a collision
(this is intended to aid rescue and exit). Driving on
rough roads may cause the vehicle to unlock. If
necessary, the vehicle can be locked again with the
interior central locking switch.

43 Tow-away protection
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Tow - aw ay al a rm
The switch is located in the center console.
1Press to switch off
2Indicator lamp
Once the alarm system has been armed, the exterior
vehicle lamps will flash and an alarm will sound when
someone attempts to raise the vehicle.The alarm will last approximately 3 minutes in the form
of f lashing exterior lamps. At the same time an alarm
will sound for 30 seconds. The alarm will stay on even if
the vehicle is immediately lowered.
The tow-away alarm system is switched off automatically
if the vehicle is unlocked with the electronic main key.
If the alarm stays on for more than 20 seconds, an
emergency call is initiated automatically. See Tele Aid
on page 156.
To prevent triggering the tow-away alarm feature, switch
off the tow-away alarm before towing the vehicle, or
when parking on a surface subject to movement, such
as a ferry or auto train.
To do so, turn key in steering lock to position 1 or 0, or
remove key from steering lock. Press tow-away alarm
switch (1). The indicator lamp (2) illuminates briefly.
Exit vehicle, and lock vehicle with key or remote
control.
The tow-away alarm remains switched off until the
vehicle is locked again with key or remote control, at
which time it is automatically reactivated.

159 Tele Aid
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Roadside Assistance button •
Located below the center armrest cover is the Roadside
Assistance button•. Pressing and holding the
button (for longer than 2 seconds), will initiate a call to
a Mercedes-Benz Roadside Assistance dispatcher. The
button will flash while the call is in progress. The
Tele Aid system will transmit data generating the
vehicle identification number, model, color and location
(subject to availability of cellular and GPS signals).A voice connection between the Roadside Assistance
dispatcher and the occupants of the vehicle will be
established. When a voice connection is established the
audio system mutes. The nature of the need for
assistance can then be described. The Mercedes-Benz
Roadside assistance dispatcher will either dispatch a
qualified Mercedes-Benz technician or arrange to tow
your vehicle to the nearest Mercedes-Benz Center. For
services such as labor and/or towing charges may apply.
Refer to the Roadside Assistance manual for more
information.
These programs are only available in the USA:
• Sign and Drive services: Services such as jump start,
a few gallons of fuel or the replacement of a f lat tire
with the vehicle spare tire are obtainable,
• Remote Vehicle Diagnostics: This function permits
the Mercedes-Benz Roadside Assistance dispatcher
to download malfunction codes and actual vehicle
data.
Wa r n i n g !
If you feel at any way in jeopardy when in the
vehicle (e.g. smoke or fire in the vehicle, vehicle in
a dangerous road location), please do not wait for
voice contact after you have pressed the emergency
button. Carefully leave the vehicle and move to a
safe location. The Response Center will
automatically contact local emergency officials
with the vehicle’s approximate location if they
receive an automatic “SOS” signal and cannot make
voice contact with the vehicle occupants.

291 Index
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
SSafety guidelines for the seat belt,
emergency tensioning retractor
and airbag .................................................................... 67
Seat belt nonusage warning system ............................. 53
Seat belts ........................................................................... 52
Fastening ...................................................................... 54
Unfastening .................................................................. 56
Warning lamp ............................................................206
Seat belts and integrated
restraint system .......................................................... 52
Seats ................................................................................... 44
Seat heater ................................................................... 50
Snow chains .................................................................... 181
Soft top ............................................................................ 143
Lowering ..................................................................... 144
Raising ........................................................................ 145
SOS-call
See Tele Aid ............................................................... 156
Spare parts service ........................................................270
Spare wheel ....................................................................229
SRS (Supplemental restraint system) ........................... 59
Indicator lamp ...........................................................206
Start lock-out .................................................................... 33
Malfunction lamp ........................................................ 77Starting and turning off the engine ............................ 167
Steering column
Adjusting ......................................................................70
Steering lock ................................................................... 165
Storage compartment
(eyeglasses compartment)
in the dashboard .......................................................124
Stowing things in the vehicle ...................................... 216
Sun visors ........................................................................123
Sunshade, electrical ...................................................... 122
Sunshade, manual ......................................................... 121
Supplemental restraint system (SRS) ...........................59
Synchronizing power windows .................................... 117
TTachometer ........................................................................79
Taillamp assemblies ..................................................... 250
Technical ........................................................................ 273
Technical data ................................................................ 273
Electrical system ....................................................... 276
Main dimensions ...................................................... 276
Rims – Tires ...............................................................274
Weights ....................................................................... 276
Tele Aid ............................................................................ 156

292 Index
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
Information ................................................................ 160
Initiating an emergency call ................................... 158
Roadside Assistance ................................................. 159
Telephone, general ........................................................ 132
Telephones and two-way radio ..................................... 154
The first 1 000 miles (1 500 km) ................................ 155
Tires
Driving instructions ................................................. 179
Inflation pressure .....................................................235
Replacement ..............................................................227
Speed rating ............................................................... 181
Traction ...................................................................... 180
Tow-away alarm ................................................................ 43
Tow-away protection ........................................................ 43
Towing the vehicle ......................................................... 241
Trip odometer ................................................................... 79
Trunk ................................................................................. 38
Trunk lamp .....................................................................260
Trunk lid
Emergency release ..................................................... 40
Trunk lid release switch ................................................. 39
UUnlocking the vehicle ...................................................... 30VVehicle jack ..................................................................... 218
Vehicle tools .................................................................... 217WWarranty coverage ........................................................ 270
What you should know
at the gas station ...................................................... 200
Wheels ............................................................................ 227
Changing ....................................................................231
Rotating ..................................................................... 228
Spare wheel ............................................................... 229
Tire replacement ...................................................... 227
Where to find it ................................................................ 13
Wind screen ....................................................................148
Installation .................................................................148
Removal ...................................................................... 150
Setting up ................................................................... 150