2002 MERCEDES-BENZ S55AMG battery

361 Towing the vehicle
Te ch n i c a 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 232), 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 146.
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 cannot be turned in the starter switch
if the battery is disconnected or discharged. See battery
on page 357 or jump starting on page 359.
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. The maximum towing
speed and distance with the vehicle on the ground
is 30 mph (50 km/h) and 30 miles (50 km).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.

371 Electronic key
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Changing batteries in the electronic 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

372 Electronic key
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
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
key.
P80.35-2025-26
5
4
6
P80.35-2027-26
78

373 Electronic key
Te ch n i c a 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.

375 KEYLESS-GO-card
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
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.

411 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex Economy mode ...........................................................176
Front center console
storage compartment ventilation ...................... 178
MAXCOOL .......................................................... 170, 181
Rear window defroster ............................................. 183
Residual engine heat utilization (REST) ................176
Special settings ......................................................... 172
Switching on and off ................................................ 177
Automatic climate control, rear
Air volume, manual .................................................. 181
Basic setting .............................................................. 181
Automatic maximum cooling ....................................... 170
Rear passenger compartment climate control ..... 181
Automatic transmission ...............................................237
Emergency operation ...............................................245
Fluid level ...................................................................343
Program mode selector switch ............................... 244
Selector lever position ..............................................240
BBabySmart
TM airbag deactivation system ..................... 88
Self-test ......................................................................... 88
BAS (Brake assist system) ............................................ 277
Battery .............................................................................357Battery recycling ...................................................... 358
BATTERY / ALTERNATOR -
malfunction and warning messages ...................... 311
Block heater ................................................................... 255
BRAKE ASSIST -
malfunction and warning messages ...................... 312
Brake assist system (BAS) ........................................... 277
Brake fluid .................................. 248, 299, 304, 402, 404
BRAKE FLUID -
malfunction and warning messages ...................... 313
Brake pad wear ............................................................... 313
BRAKE PAD WEAR -
malfunction and warning messages ...................... 313
Brake warning lamp ..................................................... 304
Brake fluid low ......................................................... 304
Brakes .......................................... 246, 248, 277, 278, 280
Bulbs
See Replacing bulbs ................................................. 364
CCapacities
Fuels, coolants, lubricants etc. .............................. 402
Card, KEYLESS-GO ..........................................................28
Catalytic converter ........................................................ 228
Center console .................................................................. 24

416 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
Heated seats ..................................................................... 71
High beams
See Combination switch .......................................... 162
Hood ................................................................................. 339
HOOD - malfunction and warning messages ............ 326
IIdentification labels ....................................................... 393
Illuminated vanity mirrors ........................................... 195
Indicator lamps in the instrument cluster ................. 302
Individual settings ......................................................... 138
INST. CLUSTER (Instrument cluster) ..................... 140
LIGHTING ................................................................... 142
VEHICLE .................................................................... 146
Infant and child restraint systems ................................ 99
Installation ................................................................. 101
Information call
See Tele Aid ............................................................... 223
Infrared reflecting windshield .................................... 214
Inside rear view mirror ................................................. 103
Instrument cluster ..........................................................112
Activating ....................................................................114
Illumination ................................................................114
Indicator lamps .................................................112, 302Instruments and controls ............................................... 18
Interior
General notes ............................................................. 196
Interior lighting .............................................................. 190
Rear reading lamp ..................................................... 191
JJack .................................................................................. 347
Jump starting ................................................................. 359KKEY - malfunction and warning messages ............... 325
Key dependent memory settings ..................................111
KEYLESS-GO .....................................................................36
Changing batteries ................................................... 374
Checking last KEYLESS-GO-card locking mode ..... 41
Choosing global or selective mode ........................... 41
Starting the engine .................................................. 236
Turning off the engine ............................................ 236
KEYLESS-GO-card ..................................................... 28, 30
Keys, changing battery .................................................. 371
Keys, vehicle .....................................................................28

417 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
LLAMP SENSOR -
malfunction and warning messages ......................320
Lamps, exterior
Fog lamps ..................................................158, 367, 368
Headlamps ....................................... 158, 318, 365, 385
License plate lamps .................................................. 369
Parking lamps ..........................................158, 367, 368
Replacing bulbs ......................................................... 364
Standing lamps .........................................158, 367, 368
Stop lamps ..................................................................369
Taillamps .......................................... 158, 318, 368, 385
Turn signal lamps ................................... 366, 368, 369
Level control system
Vehicles with Active Body Control (ABC) ............. 286
Vehicles with Airmatic system ............................... 285
Lighter .............................................................................206
LIGHTING SYSTEM -
malfunction and warning messages ...................... 318
Limp home mode (Automatic transmission) ............. 245
Locking and unlocking ............................................ 35, 38
Low beams
See Exterior lamps ....................................................364
Lumbar support ............................................................... 69
MMaintenance ................................................................... 217
Malfunction and indicator lamps
In the center console ............................................... 308
In the instrument cluster ........................................ 302
Malfunction and warning message memory ............. 136
Malfunction and warning messages
ACTIVE BODY CONTROL (ABC) ............................ 320
AIR CLEANER ........................................................... 333
AIRMATIC ..................................................................331
BATTERY/ALTERNATOR .......................................... 311
BRAKE ASSIST .......................................................... 312
BRAKE FLUID ............................................................ 313
BRAKE PAD WEAR ................................................... 313
CHIP-CARD (KEYLESS-GO) .................................... 328
COOLANT (coolant level) ......................................... 316
COOLANT (coolant temperature) ........................... 317
CRUISE CONTROL ................................................... 325
DISPLAY DEFECTIVE
(engine control unit) ............................................ 310
DISPLAY DEFECTIVE
(several systems) .................................................. 310
DISTRONIC (DTR) .................................................... 332
DOOR .......................................................................... 326
ENGINE OIL LEVEL ................................................. 324