2003 MERCEDES-BENZ C320 WAGON snow chains

73 Safety and Security
Driving safety systems
Driving safety systems
In this section you will find information on
the following driving safety systems:

ABS (A
ntilock B
rake S
ystem)


BAS (B
rake A
ssist S
ystem)


ESP (E
lectronic S
tability P
rogram)


4MATIC* (Four Wheel Electronic Trac-
tion System)
ABS
The ABS regulates the brake pressure so
that the wheels do not lock during braking.
This allows you to maintain the ability to
steer your vehicle.
The ABS is functional above a speed of ap-
proximately 5 mph (8 km/h) independent
of road surface conditions.
At the instant one of the wheels is about to
lock up, a slight pulsation can be felt in the
brake pedal, indicating that the ABS is in
the regulating mode. Keep firm and steady
pressure on the brake pedal while experi-
encing the pulsation.
iIn winter operation, the maximum ef-
fectiveness of the ABS, ESP and
4MATIC* is only achieved with winter
tires (M + S tires), or snow chains as re-
quired.
Warning!
G
The following factors increase the risk of ac-
cidents:

Excessive speed, especially in turns


Wet and slippery road surfaces


Following another vehicle too closely
ABS, BAS, ESP and 4MATIC* cannot reduce
this risk.
Always adjust your driving style to the pre-
vailing road and weather conditions.
Warning!
G
Do not pump the brake pedal, rather use
firm, steady brake pedal pressure. Pumping
the brake pedal defeats the purpose for ABS
and significantly reduces braking effective-
ness.
S203 MY03_A.book Page 73 Tuesday, January 28, 2003 2:22 PM

77 Safety and Security
Driving safety systems
Switching off the ESP
To improve the vehicle’s traction, turn off
the ESP in driving situations where it would
be advantageous to have the drive wheels
spin and thus cut into surfaces for better
grip such as:

starting out on slippery surfaces and in
deep snow in conjunction with snow
chains


sand or gravel
The switch is located on the center con-
sole.1ESP off
2ESP on

Press upper half1 of the switch.
The ESP warning lamp
v
in the
speedometer dial comes on. ESP is de-
activated.
If one or more drive wheels are spinning,
the ESP warning lamp
v
, located in the
speedometer flashes, regardless of the
speed.
Traction control brakes a spinning wheel
even when ESP is deactivated.
ESP always operates when you are brak-
ing, even when it has been deactivated.Switching on the ESP

Press lower half2 of the switch.
The ESP warning lamp
v
in the
speedometer goes out. You are now
again in normal driving mode.
Warning!
G
ESP should not be switched off during nor-
mal driving other than in the circumstances
described below. Disabling of the system
will reduce vehicle stability in standard driv-
ing maneuvers.
!Avoid spinning of a drive wheel for an
extended period with the ESP switched
off. This may cause serious damage to
the drivetrain which is not covered by
the Mercedes-Benz Limited Warranty.Warning!
G
When the ESP warning lamp
v
is
illuminated continuously, the ESP is
switched off.
Adapt your speed and driving to the prevail-
ing road conditions and to the non-operating
status of the ESP.
S203 MY03_A.book Page 77 Tuesday, January 28, 2003 2:22 PM

228 OperationDriving instructionsWinter driving instructions
The most important rule for slippery or icy
roads is to drive sensibly and to avoid
abrupt acceleration, braking and steering
maneuvers. Do not use the cruise control
system under such conditions.
When the vehicle is in danger of skidding,
move selector lever to positionN or in
case of manual transmission declutch. Try
to keep the vehicle under control by cor-
rective steering action.Road salts and chemicals can adversely af-
fect braking efficiency. Increased pedal
force may become necessary to produce
the normal braking effect.
We therefore recommend depressing the
brake pedal periodically when traveling at
length on salt-strewn roads.
This can bring road salt impaired braking
efficiency back to normal. Be very careful
that you carry out these braking maneu-
vers without endangering any other road
users.
If the vehicle is parked after being driven
on salt treated roads, the braking efficien-
cy should be tested as soon as possible af-
ter driving is resumed while observing the
safety rules in the previous paragraph.
For more information on winter driving
(
page 244).
iInformation on driving with snow
chains (
page 245).
Warning!
G
On slippery road surfaces, never downshift
in order to obtain braking action. This could
result in drive wheel slip and reduced vehi-
cle control. Your vehicle’s ABS will not pre-
vent this type of control loss.
Warning!
G
If the vehicle becomes stuck in snow, make
sure that snow is kept clear of the exhaust
pipe and from around the vehicle with the
engine running. Otherwise, deadly carbon
monoxide (CO) gases may enter vehicle in-
terior resulting in unconsciousness and
death.
To assure sufficient fresh air ventilation,
open a window slightly on the side of the ve-
hicle not facing the wind.Warning!
G
The outside temperature indicator is not de-
s i g n e d t o s e r v e a s a n i c e - w a r n i n g d e v i c e a n d
is therefore unsuitable for that purpose. In-
dicated temperatures just above the freez-
ing point do not guarantee that the road
surface is free of ice.
S203 MY03_A.book Page 228 Tuesday, January 28, 2003 2:22 PM

245 Operation
Winter driving
Block heater (Canada only)
The engine is equipped with a block heat-
er.
The electrical cable may be installed at
your authorized Mercedes-Benz Center.
Snow chains
Snow chains should only be driven on
snow-covered roads at speeds not to ex-
ceed 30 mph (50 km/h). Remove chains
as soon as possible when driving on roads
without snow. Please observe the following guidelines
when using snow chains:


Chains should only be used on the rear
wheels. Follow the manufacturer’s
mounting instructions.


Use only snow chains that are ap-
proved by Mercedes-Benz. Your autho-
rized Mercedes-Benz Center will be
glad to advise you on this subject.
iWhen driving with snow chains, you
may wish to deactivate the ESP
(page 77) before setting the vehicle
in motion. This will improve the vehi-
cle’s traction.
S203 MY03_A.book Page 245 Tuesday, January 28, 2003 2:22 PM

324 Technical dataRims and TiresSpare wheel
Your vehicle is equipped with either a
spare wheel with full size tire or a Mini-
spare wheel.
Spare wheel with full size tire
Minispare wheelRim (steel)
7J x16 H2
Wheel offset
1.46 in (37 mm)
All season tire
(radial-ply tire)
205/55 R16 91 H
Rim (steel)
3.5B x16 H2
Wheel offset
0.67 in (17 mm)
Tire
T 125/90 R 16 B98
1
1Must not be used with snow chains.
S203 MY03_A.book Page 324 Tuesday, January 28, 2003 2:22 PM

363 Index
Selective 85
Settings menu
Functions in 116
Individual vehicle settings 116
Submenus 116
Shift lock (Automatic transmission) 342
Shifting
Gear selector lever positions 138
Gearshift lever 134
Into optimal gear range (automatic
transmission) 136
Into reverse (manual
transmission) 134
Shutting off
Delayed (exterior lamps) 122
Side impact airbags 61
Side marker lamps
Replacing bulbs 292, 293, 297
Side windows
Automatic opening 185
Cleaning 251
Closing 184, 185, 186
Closing with SmartKey 186
Opening 184, 186
Opening fully 185
Opening with SmartKey 186Stopping 185
Synchronizing power windows 186
Simultaneous wiping and washing
Rear window wiper/washer 50
Windshield wipers 49
Single wipe 49
Ski sack 193
Removing 196
Unfolding and loading 193
Unloading and folding 195
Sliding/pop-up roof 187
Closing 187, 290
Closing with SmartKey 188
Opening 187, 290
Opening with SmartKey 188
Stopping 188
Synchronizing 189
SmartKey
Changing battery 287
Locking and unlocking 84
Opening and closing the slid-
ing/pop-up roof with 188
Opening and closing windows
with 186
Unlocking with 30
Snow chains 245Soft keys
Audio system 164
Spare fuses 315
Spare parts service 318
Spare wheel 281, 324
Bolts 282
Full size tire 281
Minispare 303
Minispare wheel 282
Mounting 300
Speed
Saving current 191
Speed settings
Cruise control 192
Speedometer 23
Settings units 119
Speedometer display mode
Selecting 119
Split rear bench seat 199
SRS 63
Indicator lamp 256
SRS (Supplemental Restraint
System) 342
Standing lamps 98
Replacing bulbs 292, 293, 295, 296
S203 MY03_A.book Page 363 Tuesday, January 28, 2003 2:22 PM

368 IndexW
Warning sounds
Drivers seat belts 61
Parking brake 46
Warranty coverage 319
Washer fluid see Windshield washer fluid
Washing the vehicle 248
Wear pattern (tires) 243
Weights 327
Wheel change
Tightening torque 304
Wheels
Rotating 243
Tires and wheels 241
Window curtain airbags 61
Windows see Side windows
Windshield
Defogging 147, 155
Refilling washer fluid 240
Replacing wiper blades 299
Washer fluid 240, 336
Washer system 336
Windshield washer fluid 336
Message in display 278
Mixing ratio 336
Refilling 240Wiping with 49
Windshield washer system 336
Windshield wipers 48
Fast wiper speed 48
Interval wiping 50
Rear window wiper/washer 49
Replacing wiper blades 299
Simultaneous wiping and washing 50
Single wipe 49
Switching on 48
Wiping with windshield washer
fluid 49
Winter driving 244
Block heater 245
Snow chains 245
Tires 244
Transmission program mode 139
Winter driving instructions 228
Winter tires 244
Wiper blades
Cleaning 251
Installing 299
Removing 299
Removing insert 299
Replacing 299
Wiper/washerRear window 49
Wiping
And washing simultaneously 49, 50
Interval 48, 50
With windshield washer fluid 49S203 MY03_A.book Page 368 Tuesday, January 28, 2003 2:22 PM