key battery MERCEDES-BENZ S CLASS 2000 Owner's Manual

327 Contents - Practical hints
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data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Practical hintsFirst aid kit .....................................328
Stowing things in the vehicle ......328
Fuses ................................................329
Hood ................................................. 331
Checking engine oil level .............334
Automatic transmission
fluid level ...................................335
Active body control
(ABC) fluid level ........................335
Coolant level ...................................336
Adding coolant ...........................336
Windshield and
headlamp washer system ........337Windshield and
headlamp washer fluid
mixing ratio ................................ 337
Spare wheel, vehicle tools,
storage compartment ............... 338
Vehicle jack .................................... 339
Wheels ............................................ 340
Tire Replacement ....................... 340
Rotating wheels ......................... 341
Spare wheel .................................... 341
Changing wheels ........................... 343
Tire inflation pressure ................. 348
Battery ............................................. 349
Jump starting ................................. 351
Towing the vehicle ........................ 353Exterior lamps ................................356
Headlamp assembly ...................357
Taillamp assemblies ..................360
Trunk lamp .....................................362
Changing batteries in the
electronic main key ..................363
Synchronizing
remote control ............................365
Changing batteries in the
KEYLESS-GO-card .....................366
Emergency engine
shut-down ..................................368
Fuel filler flap,
manual release ..........................368
Emergency operation of
sliding/pop-up roof ...................369
Replacing wiper blades .................370
Roof rack ......................................... 371

350 Battery
Te ch n ica l
data Instruments
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cluster displayPractical hintsCar care Index
Therefore, we strongly recommend that you have the
battery charge checked frequently, and corrected if
necessary, especially if you use the vehicle less than
approximately 200 miles (300 km) per month,
mostly for short distance trips, or if it is not used for
long periods of time.
Only charge a battery with a battery charger after the
battery has been disconnected from the vehicle’s
electrical circuit.
Always disconnect the battery negative lead first and
connect last.
When removing and connecting the battery, always
make sure that all electrical consumers are off and the
electronic key is in starter switch position 0. The
battery, its filler caps, the vent tube and the opposite
plu g must always b e securely installed w hen the veh icle
is in operation.
While the engine is running the battery terminal clamps
must not be loosened or detached, otherwise the
generator and other electronic components would be
damaged.Note:
After reconnecting the battery also set the clock (see
COMAND operator’s manual) resynchronize the front
seat head restraints, the express feature of the power
windows, the sliding / pop-up roof, and the electronic
stability program (see head restraints on page 72, power
windows on page 181, and electronic stability program
on page 274).
Battery recycling
Batteries contain materials that can harm the
environment with improper disposal.
Large 12 Volt storage batteries contain lead.
Recycling of batteries is the preferred method of
disposal.
Many states require sellers of batteries to accept old
batteries for recycling.

353 Towing the vehicle
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Towing the vehicleImportant!
When towing the vehicle, please, note the following:
With the automatic central locking activated and the
electronic key in starter switch position 2 (vehicles with
KEYLESS-GO: in “On” position, see page 228), the
vehicle doors lock if the left front wheel as well as the
right rear wheel are turning at vehicle speeds of
approximately 9 mph (15 km / h) or more.
To prevent the vehicle door locks from locking,
deactivate the automatic central locking. See
“VEHICLE” under “Individual settings” on page 144.
Towing of the vehicle should only be done using the
properly installed towing eye bolt. Never attach tow
cable, tow rope or tow rod to vehicle chassis, frame
or suspension parts.
Note:
The selector lever will remain locked in position “P” and
the electronic key could not be turned in the starter
switch if the battery is disconnected or discharged. See
battery on page 349 or jump starting on page 351.
Wa r n i n g !
Prior to towing the vehicle with all wheels on the
ground, make certain that the electronic key is in
starter switch position 2.If the electronic key is left in the starter switch
position 0 for an extended period of time, it can no
longer be turned in the switch. To unlock, remove
electronic key from starter switch and reinsert.

363 Electronic main key
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Changing batteries in the electronic main key
1Transmit buttons
2Lamp for battery check and function control
Checking batteries
If one of the transmit buttons (1) is pressed, the battery
check lamp (2) lights up briefly – indicating that the
batteries are in order.
Change batteries if the battery check lamp (2) does not
light up briefly.Changing batteries
Move locking tab (3) in direction of right arrow and
remove mechanical key (4, left arrow).
P80.20-2201-26
1
2
P80.35-2029-26
4
3

364 Electronic main key
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Insert mechanical key (4) in side opening (5) to open
latch. Press briefly (do not use mechanical key as lever)
to release battery compartment.
Remove mechanical key from side opening.
Carefully remove battery compartment in direction of
arrow (6).Change batteries (7), inserting new ones under contact
spring (8) with plus (+) side facing up.
Return battery compartment into housing until locked
in place and slide mechanical key back into electronic
main key.
P80.35-2025-26
5
4
6
P80.35-2027-26
78

365 Electronic main key
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Important!
Batteries contain materials that can harm the
environment if disposed of improperly. Recycling of
batteries is the preferred method of disposal. For
disposal, please follow manufacturer’s recommendation
on battery package.
Replacement Battery:
Lithium, type CR 2025 or equivalent.Synchronizing remote control
The remote control may have to be resynchronized, if
the vehicle cannot be locked or unlocked.
To synchronize insert electronic key in starter switch.
The remote control should once again be operational.

367 KEYLESS-GO-card
Te ch n ica l
data Instruments
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cluster displayPractical hintsCar care Index Changing batteries
Pry open cover (1) (e.g. by using a narrow blade screw
driver) and remove batteries.
Install new batteries as indicated by the “+” and “-”
markings in the KEYLESS-GO-card.Important!
Batteries contain materials that can harm the
environment if disposed of improperly. Recycling of
batteries is the preferred method of disposal. For
disposal, please follow manufacturer’s recommendation
on battery package.
Replacement batteries:
Lithium, type CR 2025 or equivalent.

403 Index
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data Instruments
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cluster displayPractical hints Car careIndex Front center console storage
compartment ventilation .................................... 175
Rear window defroster ............................................. 180
Residual engine heat utilization (REST) ............... 174
Special settings ......................................................... 169
Switching on and off ................................................ 175
Automatic climate control, rear
Air volume, manual .................................................. 178
Basic setting .............................................................. 178
Automatic transmission ...............................................233
Emergency operation ............................................... 241
Fluid level ...................................................................335
Program mode selector switch ...............................240
Selector lever position ..............................................236
BBabySmart
TM airbag deactivation system ..................... 91
Self-test ......................................................................... 91
BAS (Brake assist system) ............................................ 271
Battery .............................................................................349
Battery recycling .......................................................350
BATTERY / ALTERNATOR -
malfunction and warning messages ......................305
Block heater .................................................................... 251BRAKE ASSIST -
malfunction and warning messages ..................... 306
Brake assist system (BAS) ............................................ 271
Brake fluid ..................................244, 293, 298, 394, 396
BRAKE FLUID -
malfunction and warning messages ..................... 307
BRAKE LINING WEAR -
malfunction and warning messages ..................... 307
Brake pad wear .............................................................. 307
Brake warning lamp ..................................................... 298
Brake fluid low ......................................................... 298
Brakes ........................................... 242, 244, 271, 272, 274
CCapacities
Fuels, coolants, lubricants etc. .............................. 394
Card, KEYLESS-GO ..........................................................28
Catalytic converter ........................................................ 224
Center console .................................................................. 24
Center console lighting ................................................. 189
Central locking switch .................................................... 50
Central locking system .................................................... 34
Automatic central locking .........................................52
Choosing global or selective mode .....................37, 43
Electronic main key .................................................... 29

409 Index
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cluster displayPractical hints Car careIndex Standing lamps ........................................ 156, 359, 360
Stop lamps .................................................................. 361
Taillamps .......................................... 156, 312, 360, 377
Turn signal lamps ................................... 358, 360, 361
Level control system
Vehicles with Active Body Control
(ABC) ......................................................................280
Vehicles with Airmatic system ...............................279
LIGHT SENSOR -
malfunction and warning messages ...................... 314
Lighter .............................................................................203
LIGHTING SYSTEM -
malfunction and warning messages ...................... 312
Limp home mode
(Automatic transmission) ........................................ 241
Locking and unlocking ............................................ 36, 40
Lumbar support ............................................................... 73
MMaintenance ................................................................... 213
Malfunction and indicator lamps
In the center console ................................................302
In the instrument cluster .........................................296
Malfunction and warning message memory ............. 136
Malfunction and warning messagesACTIVE BODY CONTROL (ABC) ............................. 314
AIR SPRING (AirMatic) ........................................... 325
BATTERY/ALTERNATOR ......................................... 305
BRAKE ASSIST ......................................................... 306
BRAKE FLUID ........................................................... 307
BRAKE LINING WEAR ............................................ 307
CHIP-CARD (KEYLESS-GO) .................................... 322
COOLANT (coolant level) ......................................... 310
COOLANT (coolant temperature) ........................... 311
CRUISE CONTROL .................................................... 319
DISPLAY DEFECTIVE
(engine control unit) ........................................... 304
DISPLAY DEFECTIVE
(several systems) ................................................. 304
DISTRONIC (DTR) .................................................... 326
DOOR .......................................................................... 320
ELEC. STABIL. PROG. .............................................. 309
ENGINE OIL LEVEL .................................................. 318
ENTRANCE POSITION ............................................ 306
HOOD ......................................................................... 320
KEY .............................................................................. 319
LIGHT SENSOR .......................................................... 314
LIGHTING SYSTEM ................................................... 312
OIL TEMP. (engine oil temperature) ......................321
PARKING BRAKE ..................................................... 308
SELECTOR LEVER .................................................... 323

412 Index
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data Instruments
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cluster displayPractical hints Car careIndex
Remote control .......................................................... 28, 34
Battery replacement .................................................363
Removal and installation of
front seat head restraints .......................................... 72
Replacing bulbs ..............................................................356
Replacing wiper blades .................................................370
Reporting Safety Defects ................................................ 15
Reserve key ....................................................................... 30
Residual engine heat utilization (REST) .................... 174
Roadside assistance ......................................................... 10
Roadside assistance call
See Tele Aid ............................................................... 214
Roof rack ......................................................................... 371
SSeat belts ........................................................................... 84
Fastening ...................................................................... 87
Operation ..................................................................... 88
Seat belt nonusage warning system ........................ 85
Unfastening .................................................................. 88
Warning lamp ............................................................302
Seat belts and integrated restraint system .................. 84
Seat heater ........................................................................ 75
Seat ventilation system ................................................... 78Seats
Front seat adjustment ................................................67
Lumbar support ........................................................... 73
Multicontour backrest ................................................73
Seat heater ...................................................................75
Ventilation system ...................................................... 78
SELECTOR LEVER -
malfunction and warning messages ..................... 323
Service indicator
See Flexible service system (FSS) .......................... 147
Setting the audio volume ..............................................146
Side impact airbags .........................................................96
Simultaneous .................................................................... 44
Simultaneous use of
electronic main key and
KEYLESS-GO-card .......................................................44
Sliding/pop-up roof ........................................................ 184
Emergency operation .............................................. 369
Express opening ........................................................ 185
Opening and closing ...................................................45
Synchronizing ........................................................... 186
Snow chains ................................................................... 249
SOS-call
See Tele Aid ............................................................... 214
Spare parts service ....................................................... 384
Spare wheel ....................................................................341