331 Battery
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Removal of filter box:
Release three clamps (1) and remove filter box.
Installation of filter box:
Install filter box properly and secure with
three clamps (1).
Notes:
The gear selector lever will remain locked in
position “P” and the electronic key could not be turned
in the starter switch, if the vehicle battery is
disconnected or discharged.After reconnecting the battery also set the clock
(vehicles with COMAND: 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
individual settings on page 115, head restraints on
page 50, power windows on page 185, synchronizing the
sliding / pop-up roof on page 190 and electronic stability
program on page 270).
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.
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335 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, the vehicle
doors lock if the lef t 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 the
individual setting menu “VEHICLE” – “AUTOMATIC
DOOR LOCK” on page 125.
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.
Notes:
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 330 or jump starting on page 332.
Transmission selector lever, manually unlocking, see
page 338.
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. In this case, the
steering is locked. To unlock, remove electronic key
from starter switch and reinsert.
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346 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).
P80.20-2200-26
1
2
P80.35-2028-26
4
3
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347 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.
P80.35-2026-26
5
4
6
P80.35-2027-26
78
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348 Emergency engine shut-down
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.Emergency engine shut-down
If the engine can no longer be stopped using the
electronic key, the engine can be turned of f by removing
two fuses.
For easy removal of fuses use the fuse extractor (located
in the auxiliary fuse box in cargo area behind left trim
panel) to pull out the fuses marked on the fuse chart as
“ENGINE EMERGENCY OFF”.
The fuse chart is located in the fuse box in the
passenger compartment.
For fuses see page 307.
S203.book Seite 348 Freitag, 19. Oktober 2001 1:25 13
377 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
BBabySmart
TM airbag deactivation system ..................... 64
Battery .............................................................................330
Block heater .................................................................... 262
Brake assist system (BAS) ............................................ 267
Bulbs
See Replacing bulbs ................................................. 339
CCargo tie-down rings ..................................................... 218
CD changer
See CD changer installed ......................................... 175
Cellular telephone ......................................................... 219
Center console .................................................................. 24
Central locking switch .................................................... 38
Central locking system ................................................... 31
Automatic central locking ......................................... 39
Central locking switch ............................................... 38
Choosing global or selective mode ........................... 33
Doors ............................................................................. 36General notes ...............................................................30
Locking and unlocking with remote control .......... 33
Mechanical keys ..........................................................35
Obtaining replacement keys .....................................29
Summer opening/convenience feature ...................34
Vehicle keys ................................................................. 28
Check regularly and before a long trip ....................... 276
Child seat
See Infant and child restraint systems .................... 77
Climate control
Adjustable air outlets,
rear passenger compartment ............................. 160
Front center console storage
compartment ventilation ..................................... 159
Windows fogged up on the outside ........................ 154
Closing the tailgate ..........................................................42
COMAND, radio and telephone .................................. 226
Combination switch ....................................................... 142
Control and operation of radio transmitters ............. 226
Coolant level ................................................................... 315
Coolant temperature gauge .......................................... 131
Cruise control ................................................................ 264
Cup holder ....................................................................... 198
S203.book Seite 377 Freitag, 19. Oktober 2001 1:25 13
380 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
Information call
See Tele Aid ............................................................... 228
Instrument cluster ........................................................... 92
Instruments and controls ............................................... 18
Center console ............................................................. 24
Dashboard .................................................................... 22
Door control panel ...................................................... 20
Overhead control panel .............................................. 21
Interior ............................................................................ 194
Interior lighting ............................................................. 191
JJack ................................................................................... 320
Jump starting ..................................................................332KKeys, changing battery ................................................. 346
Keys, vehicle ..................................................................... 28
LLamps, exterior
Side marker lamp, front .......................................... 344
Lighter ............................................................................ 202
Loading instructions ...................................................... 217
Locator lighting .............................................................. 141
Locking the vehicle with remote control ..................... 33
Low beams
See Exterior lamps ................................................... 339MMaintenance .................................................................. 227
Malfunction and warning messages
STEERING GEAR OIL ............................................... 296
Malfunction/warning message memory .................... 113
Mechanical key .......................................................... 28, 35
Memory function ............................................................. 89
Mirror, exterior, parking position,
front passenger side ...................................................86
Multicontour seat ............................................................. 51
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