2003 MERCEDES-BENZ C320 4MATIC parking brake

258 Practical hintsWhat to do if …Problem
Possible cause
Suggested solution
3
(Canada only)
;
(USA only)
The red brake warning lamp
lights up while driving and you
hear a warning sound.
You are driving with the
parking brake set.

Release the parking brake
(page 51).
The red brake warning lamp
lights up while driving.
There is insufficient brake fluid
in the reservoir.

Risk of accident! Carefully stop the
vehicle and notify an authorized
Mercedes-Benz Center. Do not add
brake fluid! This will not solve the
problem.
Warning!
G
Driving with the brake warning lamp illumi-
nated can result in an accident. Have your
brake system checked immediately if the
brake warning lamp stays on. Don’t add
brake fluid before checking the brake
system. Overfilling the brake fluid reservoir
can result in spilling brake fluid on hot en-
gine parts and the brake fluid catching fire.
You can be seriously burned.
!If you find that the brake fluid in the
brake fluid reservoir has fallen to the
minimum mark or below, have the
brake system checked for brake pad
thickness and leaks.

264 Practical hintsWhat to do if …#
BATTERY/ALTERNATOR
VISIT WORKSHOP!
The battery is no longer charging.
Possible causes:

alternator malfunctioning


broken poly-V-belt

Stop immediately and check the
poly-V-belt.
If it is broken:

Do not continue to drive. Otherwise
the engine will overheat due to an
inoperative water pump which may
result in damage to the engine. Notify
an authorized Mercedes-Benz Center.
If it is intact:

Drive immediately to the nearest
authorized Mercedes-Benz Center.
!
(Canada
only)
;
(USA only)
PARKING BRAKE
RELEASE PARKING BRAKE!
You are driving with the parking brake
set.

Release the parking brake
(page 51).
Display
Possible cause
Suggested solution

280 Practical hintsWhere will I find ...?
Remove vehicle tool kit storage well
casing5.
3Arrow
4Minispare wheel
5Vehicle tool kit storage well casing
6Vehicle tool kit
Wheel wrench
Vehicle jackVehicle jackVehicles with full size tire spare wheel
The vehicle jack is stored in the space
underneath the trunk floor together with
the vehicle tool kit in the storage tray
(
page 281).
Vehicles with Minispare wheel
The vehicle jack is stored in the space
underneath the trunk floor together with
the vehicle tool kit in the vehicle tool kit
storage well casing (
page 279).
Storage position
Remove the vehicle jack from its
compartment.
iArrow3 on vehicle tool kit storage well
casing5 must point in the direction of
travel. Otherwise you cannot place the
storage well casing on top and secure
the Minispare wheel with retaining
screw1 (
page 279).
Warning!
G
The jack is designed exclusively for jacking
up the vehicle at the jack take-up brackets
built into both sides of the vehicle. To help
avoid personal injury, use the jack only to lift
the vehicle during a wheel change. Never
get beneath the vehicle while it is supported
by the jack. Keep hands and feet away from
the area under the lifted vehicle. Always
firmly set parking brake and block wheels
before raising vehicle with jack.
Do not disengage parking brake while the
vehicle is raised. Be certain that the jack is
always vertical (plumb line) when in use,
e s p e c i a l l y o n h i l l s . A l w a y s t r y t o u s e t h e j a c k
on level surface. Make sure that the jack
arm is fully seated in the jack take-up
bracket. Always lower the vehicle onto
sufficient capacity jackstands before
working under the vehicle.


291 Practical hints
Replacing bulbs
Rear lamps Notes on bulb replacement


Use only 12 volt bulbs of the same type
and with the specified watt rating.


Switch lights off before changing a bulb
to prevent short circuits.


Always use a clean lint-free cloth when
handling bulbs.


Your hands should be dry and free of oil
and grease.


If the newly installed bulb does not light
up, visit an authorized Mercedes-Benz
Center.


Have the LEDs and bulbs for the follow-
ing lamps replaced by an authorized
Mercedes-Benz Center:

Additional turn signal lamps in the
exterior rear view mirrors


High mounted brake lamp


Xenon lamps


Front fog lamps
Lamp
Type
7
High mounted brake
lamp
LED
8
Brake lamp
P21W
9
Turn signal lamp
PY 21 W
10
Backup lamp
P21W
11
Tail, parking,
standing and side
marker lamp
R5W
12
License plate lamps
C5W
13
Rear fog lamp,
driver’s side
P21W
Warning!
G
Keep bulbs out of reach of children.
Bulbs and bulb sockets can be very hot. Al-
low the lamp to cool down before changing
a bulb.
Halogen lamps contain pressurized gas.
A bulb can explode if you

touch or move it when hot


drop the bulb


scratch the bulb
Wear eye and hand protection.
Because of high voltage in Xenon lamps, it is
dangerous to replace the bulb or repair the
lamp and its components. We recommend
that you have such work done by a qualified
technician.

297 Practical hints
Flat tire
Flat tire
Preparing the vehicle
Park the vehicle as far as possible from
moving traffic on a hard surface.

Turn on the hazard warning flashers.

Engage the steering wheel lock in the
straight ahead position and set the
parking brake.

Move the selector lever toP (manual
transmission to first or reverse gear).

Have any passenger exit the vehicle at
a safe distance from the roadway.
Mounting the spare wheel
Prepare the vehicle as described under
"Preparing the vehicle" on this page.

Take the spare wheel out of the trunk
as described on (
page 281) (full size
tire spare wheel) or (page 282)
(Minispare wheel).
Lifting the vehicle

Prevent the vehicle from rolling away
by blocking wheels with wheel chocks
(not included) or other sizable objects.
When changing wheel on a level surface:

Place one chock in front of and one
behind the wheel that is diagonally
opposite to the wheel being changed.
When changing wheel on a hill:

Place chocks on the downhill side
blocking both wheels of the other axle.

Take the two-piece wheel wrench and
the jack out of the trunk (
page 279).
Assemble wheel wrench.
Warning!
G
The jack is designed exclusively for jacking
up the vehicle at the jack take-up brackets
built into both sides of the vehicle. To help
avoid personal injury, use the jack only to lift
the vehicle during a wheel change. Never
get beneath the vehicle while it is supported
by the jack. Keep hands and feet away from
the area under the lifted vehicle. Always
firmly set parking brake and block wheels
before raising vehicle with jack.
Do not disengage parking brake while the
vehicle is raised. Be certain that the jack is
always vertical (plumb line) when in use, es-
pecially on hills. Always try to use the jack
on level surface. Make sure that the jack
arm is fully seated in the jack take-up
bracket. Always lower the vehicle onto suffi-
cient capacity jackstands before working
under the vehicle.


307 Practical hints
Jump starting
The battery is located in the engine
compartment on the right hand side. The
terminals for jump starting are located in
front of the battery.
Make sure that the two vehicles do not
touch.

Turn off all electrical consumers.

Apply parking brake.

Shift selector lever to positionP (man-
ual transmission to Neutral).1Positive terminal of charged battery
2Positive under hood terminal in front of
discharged battery
3Negative terminal of charged battery
4Negative under hood terminal in front
of discharged battery

Connect positive terminal1 of the
charged battery with the under hood
terminal2 in front of the discharged
battery with the jumper cables. Clamp
cable to charged battery1 first.

Start engine of the vehicle with the
charged battery and run at idle speed.

Connect negative terminal3 of the
charged battery with the under hood
terminal4 of the discharged battery
with the jumper cables. Clamp cable to
charged battery3 first.

Start the engine of the disabled vehi-
cle.
Now you can again turn on the electrical
consumers. Do not turn on the lights under
any circumstances.

Remove the jumper cables first from
negative terminals3 and4 and then
from positive terminals1 and2.

Have the battery checked at the near-
est authorized Mercedes-Benz Center.
Warning!
G
Keep flames or sparks away from battery.
Do not smoke.
Observe all safety instructions and precau-
tions when handling automotive batteries
(page 240).
!Vehicles with automatic transmission
and/or 4MATIC*:
Do not tow-start the vehicle.

349 Index
Automatic transmission 138
Accelerator position 143
Emergency operation
(Limp Home Mode) 143
Fluid level 238
Gear ranges 140
Gear selector lever position 141
Gear shifting malfunctions 143
Kickdown 143
Manual shifting 139
One-touch gearshifting 139
Program mode selector switch 142
Selector lever position 138
Starting with 44
Transmission fluid 238
Winter program mode 142
Auxiliary fuse box 313
B
BabySmart
TM
Airbag deactivation system 67, 341
Compatible child seats 67, 341
Self-test 67
Backrest
Folding forward 200
Folding rearward 200
Backrest tilt 33Backup lamps 291, 295
Bulbs 291
BAS 74, 341
Messages in display 263
Batteries, SmartKey
Changing 286, 287
Check lamp 85
Checking 86
Battery discharged
Jump starting 306
Battery, vehicle 240, 303
Charging 304
Disconnecting 304
Messages in display 278
Reconnecting 305
Reinstalling 304
Removing 304
Bi-Xenon headlamps* 341
Bi-Xenon type*
Front lamp bulbs 293
Block heater 246
Blocking
Rear door window operation 71
Bolts
For Minispare wheel 284
For spare wheel 282Brake assist system (BAS) 341
Brake fluid 332
Checking 234
Brake lamp bulbs 291
Brake lamp, high mounted 291
Brake pads
Message in display 265
Brakes 224
Warning lamp 258
Break-in period 222
Bulbs, replacing 290
Additional turn signals 290
Backup lamps 291
Brake lamps 291
Fog lamps 290
Front lamps 290
High beam 290
High mounted brake lamp 291
License plate lamps 291, 295
Low beam 290
Parking lamps 290, 291, 293, 294
Rear fog lamp 291, 295
Side marker lamps 290, 294
Standing lamps 290, 291, 293, 294
Tail lamp assemblies 291, 295
Turn signal lamps 290, 291

359 Index
Mechanical key 285
Memory function* 98, 343
Recalling positions from memory 99
Storing exterior rear view mirror
parking positions 100
Storing key dependent settings 99
Menus 112
AUDIO 116
Control system 343
In control system 114, 115
Malfunction memory 118
NAVI* 118
Settings menu 119
Standard display 116
Submenus 113
TEL* 134
Trip computer 132
Microphone
Hands-free microphone 27
Miles/kilometers in speedometer
Setting 123
Minispare wheel 300
Bolts 284
Removing 283Mirrors
Activating exterior rear view mirror
parking position* 145
Adjusting 39
Automatic antiglare* for inside
mirror 144
Automatic antiglare* for rear view
mirror 144
Exterior rear view mirror 39
Exterior rear view mirror parking
positions 131
Inside rear view mirror 39
Storing exterior rear view mirror
parking position* 100
MON (Motor Octane Number) 234, 343
Mph or km/h in speedometer 123
Multicontour seat* 96
Multifunction display 111, 343
Selecting language 124
Standard display 115
Multifunction display messages
ABS 262
BAS 263
Battery 278
Brake fluid 265
Brake pads 265Check engine 259
Coolant 267
Coolant level 266
Display 278
Doors 272
Engine 259
Engine oil level 270
ESP 269
Fuel reserve tank 272
Hood 272
Key 272
Lamps 272–275
Parking brake 264
Steering column not properly
locked 276
Steering gear oil level 276
Tele Aid* 277
Telephone* 277
Trunk lid 272
Washer fluid 278
Multifunction steering
wheel 24, 112, 343
Buttons 112