2002 MERCEDES-BENZ C CLASS COUPE Battery

228
Tele Aid
Te ch n i c a l
data
Instruments
and controls Operation
DrivingInstrument
cluster display Practical hints Car care Index
Tele Aid (optional)
Important!
The initial activation of the Tele Aid system may only be
performed by completing the subscriber agreement and
placing an acquaintance call using the “SOS” button.
Failure to complete either of these steps will result in a
system that is not activated. If the system is not
activated the indicator lamp in the “SOS” button stays
on after turning electronic key in starter switch to
position 2 and the message “TELE AID – NOT
ACTIVATED” will be shown in the multifunction display
for approx. 10 seconds.
If you have any questions regarding activation, please
call the Response Center at 1-800-756-9018 (in the USA)
or 1-888-923-8367 (in Canada).
( Te l e matic Alarm Identification on Demand)
The Tele Aid system consists of three types of response;
automatic and manual emergency, roadside assistance
and information.
The Tele Aid system is operational providing that the
vehicle’s battery is charged, properly connected, not
damaged and cellular and GPS coverage is available. The speaker volume of a Tele Aid call can be adjusted
when using the volume control on the multifunction
steering wheel, for raising press button
æand for
lowering press button ç.
To activate, press the “SOS” button, the Roadside
Assistance button  or the Information button ¡,
depending on the type of response required.
Shortly after the completion of your Acquaintance Call,
you will receive a user ID and password via first call
mail. By visiting www.mbus a.com and selecting “Tele
Aid” (USA only), you will have access to account
information, remote door unlock, Info Services
* profile
and more.
* Optional (available only with COMAND)System self-check
Initially, after turning the electronic key in starter
switch to position 2, malfunctions are detected and
indicated (the indicator lamps in the “SOS” button, the
Roadside Assistance button  and the Information
button ¡ stay on longer than 10 seconds or do not
come on). The message “TELE AID – VISIT
WORKSHOP” appears for approx. 10 seconds in the
multifunction display.

241
Starter switch
Te ch n i c a l
data
Instruments
and controls Operation
DrivingInstrument
cluster display Practical hints Car care Index
Important!
If the electronic key is left in the starter switch
position 0 for a extended period of time, it can no longer
be turned in the lock. In this case, remove electronic key
from starter switch and reinsert.
Caution!
To prevent accelerated battery discharge and a possible
dead battery, always remove the electronic key from the
starter switch.
Do not leave the electronic key in starter
switch position 0. Notes:
A warning sounds when the driver’s door is opened
with the electronic key is in starter switch position 1
or 0.
If the electronic key cannot be turned in the starter
switch, the vehicle battery may not be sufficiently
charged. See battery on page 336 or jump starting on
page 338.
With the engine at idle speed, the charging rate of the
alternator (output) is limited.
It is therefore recommended that you turn off
unnecessary electrical consumers while driving in stop-
and-go traffic. This precaution helps to avoid draining of
the battery.
Unnecessary strain on the battery and charging system
may be minimized by turning off the following power
consumers, for example:
Heated seats, rear window defroster. In addition, the
automatic climate air volume control should be set to
the lowest position.

265
Driving instructions
Te ch n i c a l
data
Instruments
and controls Operation
DrivingInstrument
cluster display Practical hints Car care Index
Winter driving
Have your vehicle winterized at your authorized
Mercedes-Benz Center before the onset of winter.
• Change the engine oil if the engine contains an oil
which is not approved for winter operation. For
viscosity (SAE / CCMC class) and filling quantity,
seepage379.
• Check engine coolant anticorrosion / antifreeze
concentration.
• Additive for the windshield washer and headlamp
cleaning system: Add MB Concentrate “S” to a
premixed windshield washer solvent / antifreeze
which is formulated for below freezing
temperatures, see page 320.
• Test battery: Battery capacity drops with decreasing
ambient temperature. A well charged battery helps
to ensure that the engine can be started, even at low
ambient temperatures.
• Tires: We recommend M+S rated radial-ply tires on
all four wheels for the winter season. Observe
permissible maximum speed for M+S rated
radial-ply tires and the legal speed limit. Note:
In winter operation, the maximum effectiveness of the
antilock brake system (ABS) and electronic stability
program (ESP) can only be achieved with M+S rated
radial-ply tires and / or snow chains recommended by
Mercedes-Benz. Snow chains maximize performance.

275
Driving systems
Te ch n i c a l
data
Instruments
and controls Operation
DrivingInstrument
cluster display Practical hints Car care Index
Notes:
The yellow ESP warning lamp
v in the speedometer
dial comes on with the electronic key in starter switch
position 2. It should go out with the engine running.
If the ESP warning message is displayed, a malfunction
has been detected in the system. Only partial engine
output will be available.
Have the ESP checked at your authorized
Mercedes-Benz Center as soon as possible.
For ESP warning message, see page 288.
With the ABS malfunctioning, the ESP is also switched
off.
Driving the vehicle with varied size tires will cause the
wheels to rotate at different speeds, therefore the ESP
may activate (yellow ESP warning lamp in speedometer
dial comes on). For this reason, all wheels, including the
spare wheel, must have the same tire size. When testing the parking brake on a brake test
dynamometer, the engine must be shut off. Otherwise,
the ESP will immediately be engaged and will apply the
rear wheel brakes.
In winter operation, the maximum effectiveness of the
ESP is only achieved with Mercedes-Benz recommended
M+S rated radial-ply tires and / or snow chains.
Synchronizing ESP
If the power supply was interrupted (battery
disconnected or empty), the ESP warning message may
be displayed with the engine running.
Turn steering wheel completely to the left and then to
the right. The ESP warning message should go out.

281
Contents - Instrument cluster display
Te ch n i c a l
data
Instruments
and controls Operation Driving
Instrument
cluster display Practical hints Car care Index
Instrument cluster displayMalfunction and indicator
lamps in the instrument
cluster ......................................... 282
On-board diagnostic system ......... 283 Check engine malfunction
indicator lamp............................. 283
Brake warning lamp .................. 284
Supplemental restraint
system (SRS) indicator lamp .... 285
Fuel reserve warning................. 286
ABS malfunction indicator
lamp.............................................. 287
Electronic stability program
(ESP) — warning lamp ............... 288
Seat belt nonusage warning lamp ............................................288 Malfunction and indicator
lamp in the center console...... 289
AIRBAG OFF indicator lamp .... 289
Malfunction and warning messages in the
multifunction display .............. 290
DISPLAY DEFECTIVE................ 291
BATTERY / ALTERNATOR ....... 292
ANTILOCK BRAKE SYSTEM .... 293
BRAKE ASSIST........................... 293
BRAKE PAD WEAR.................... 294
BRAKE FLUID ............................ 294
PARKING BRAKE ....................... 295
SEAT BELT SYSTEM .................. 295
ELEC. STABIL. PROG.
(Electronic stability program).. 296
COOLANT (coolant level).......... 297 COOLANT
(coolant temperature) ................ 298
ENGINE OIL LEVEL ................... 299
LIGHTING SYSTEM .................... 300
LIGHT SENSOR........................... 302
DOOR............................................ 302
TRUNK OPEN ............................. 303
HOOD ........................................... 303
TELEPHONE – FUNCTION ....... 304
TELE AID ..................................... 304
WASHER FLUID.......................... 305
RESTRAINT SYSTEM ................. 306
KEY............................................... 306
FUEL RESERVE .......................... 307
UNDERVOLTAGE ........................ 307
STEERING WHEEL ADJUST. ..... 308

292
Malfunction and warning messages
Te ch n i c a l
data
Instruments
and controls Operation Driving
Instrument
cluster display Practical hints Car care Index
BATTERY / ALTERNATOR
* C = Category, see page 290
This message indicates a malfunction which must be
repaired immediately.
It may indicate that the poly-V-belt has broken. Should
this condition occur, the poly-V-belt must be replaced
before continuing to operate the vehicle. Otherwise, the
engine will overheat due to an inoperative water pump
which may result in damage to the engine.
Do not continue to drive the vehicle with this message
displayed.
Doing so could result in serious engine damage that is
not covered by the Mercedes-Benz Limited Warranty.
Line 1 Line 2C*
BATTERY/ALTERNATOR VISIT WORKSHOP! 2

296
Malfunction and warning messages
Te ch n i c a l
data
Instruments
and controls Operation Driving
Instrument
cluster display Practical hints Car care Index
ELEC. STABIL. PROG. (Electronic stability program)
* C = Category, see page 290 1 The enhanced vehicle stability offered by ESP and the torque
reduction feature are unavailable.
2 This message may be displayed if the power supply was interrupted (battery disconnected or empty). Synchronize ESP, see
page 275
3 The system is temporarily unavailable. The reason could be that the self-diagnosis has not been completed. The display will clear
itself after driving a short distance at more than 12 mph (2o km/h).
4 The system is unavailable due to low voltage, e.g. battery not being charged.
5 A malfunction has been detected in the system. In case of ESP malfunction the ESP warning lamp in the instrument cluster
illuminates and the ESP switch in the center console does not
function. If in addition the ABS is malfunctioning, only partial
engine output will be available.
6 The display or the system is malfunctioning.
Line 1 Line 2 C*
ELEC. STABIL. PROG. NOT AVAILABLE!
1, 2, 3, 4
2
ELEC. STABIL. PROG. VISIT WORKSHOP!
1, 5
2
DISPLAY DEFECTIVE VISIT WORKSHOP!
6
2

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Contents - Practical hints
Te ch n i c a l
data
Instruments
and controls Operation Driving
Instrument
cluster display Practical hints
Car care Index
Practical hintsFirst aid kit...................................... 310
Stowing things in the vehicle ...... 311
Fuses ................................................ 311
Hood ................................................. 315
Automatic transmission
fluid level ................................... 317
Adding engine oil........................... 318
Coolant level ................................... 319 Adding coolant............................ 319
Windshield and headlamp washer system ........................... 320
Spare wheel, storage compartment.............................. 321 Vehicle tools and air pump .......... 322
Vehicle jack .................................... 323
Wheels ............................................ 324
Tire replacement........................ 324
Rotating wheels ......................... 325
Spare wheel .................................... 326
Changing wheels ........................... 327
Inflating the collapsible
spare tire ..................................... 333
Storing spare wheel in
wheel well ................................... 334
Tire inflation pressure ................. 335
Battery............................................. 336
Jump starting.................................. 338 Towing the vehicle......................... 341
Transmission selector lever,
manually unlocking ................... 344
Exterior lamps ................................ 345
Replacing bulbs .......................... 345
Changing batteries in the electronic main key .................. 351
Synchronizing remote
control .......................................... 353
Emergency engine shut-down ..... 353
Fuel filler flap, manual release ... 354
Replacing wiper blade insert ....... 356
Roof rack ......................................... 357