Page 272 of 385

269 Malfunction and indicator lamps
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index ABS malfunction indicator lamp
The ABS malfunction indicator lamp in the
instrument cluster comes on with the
electronic key in starter switch position 2
and should go out with the engine running.
When the ABS malfunction indicator lamp symbol and
warning in the instrument cluster remains illuminated
while the engine is running, it indicates that the ABS
has detected a malfunction and has switched off. In this
case, the brake system functions in the usual manner,
but without antilock assistance.
A malfunctioning ABS control unit can possibly affect
the operation of other systems (e.g. Navigation,
Automatic transmission). Be guided accordingly with
respect to the use of those systems and have the system
checked at your authorized Mercedes-Benz Light Truck
Center as soon as possible.
With the ABS malfunctioning the BAS, ESP, EBB and
4-ETS are also switched off. The malfunction indicator
lamps and malfunction messages in the multifunction
display come on with the engine running.If a warning tone sounds for 5 seconds and the warning
lamps- and É are displayed in the instrument
cluster, the EBB has a malfunction and is switched off.
See page 242 for notes on the electronic brake booster
(EBB).
If the charging voltage falls below 10 volts, the
malfunction indicator lamp comes on and the ABS is
switched off. When the voltage is above this value again,
the malfunction indicator lamp should go out and the
ABS is operational.
Have the system checked at your authorized
Mercedes-Benz Light Truck Center as soon as possible.
See page 239 for notes on antilock brake system (ABS).
Note:
If the transfer case differential lock is engaged the ABS
warning lamp comes on and the ABS, ESP, BAS, EBB
and 4-ETS are switched off. There is no malfunction in
the system.
ABS
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Page 294 of 385
291 Malfunction and warning messages
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index ELECTRONIC BRAKE BOOSTER (EBB)
* C = Category, see page 272.
ENGINE AIR FILTER* C = Category, see page 272.
1 The engine air filter is clogged and must be replaced. Line 1 Line 2 C*
ELECTRIC BRAKE BOOSTER VISIT WORKSHOP! 2Line 1 Line 2 C*
ENGINE AIR FILTER
1
VISIT WORKSHOP! 2
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Page 374 of 385

371 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex COMAND, radio and telephone ................................... 190
Combination switch ...................................................... 134
Consumer information .................................................. 367
Control and operation of radio transmitters ............. 190
Coolant level
Adding ........................................................................306
Checking .................................................................... 306
Coolant temperature gauge .......................................... 123
Coolants ........................................................................... 365
Anticorrosion/antifreeze quantity ......................... 365
Cover blind, cargo area ................................................. 180
Cover, spare wheel ......................................................... 312
Cruise control .................................................................234
Cup holder
In passenger footwell ............................................... 167
Next to the armrest ................................................... 166
Rear passenger footwell ........................................... 167
DDeep water
Driving instructions ................................................. 224
Differential locks ............................................................253
Differential locks, disengage ........................................256
Differential locks, engage ............................................. 254Door control panel ........................................................... 22
Door entry lamps ........................................................... 157
Doors ..................................................................................34
Drinking and driving ..................................................... 216
Drive sensibly - save fuel .............................................. 216
Driving instructions ...................................................... 216
Driving off ....................................................................... 218
EEasy-entry/exit feature ...................................................44
Electrical outlet ..............................................................301
Electronic Brake Booster (EBB) ................................... 242
Electronic key ................................................................... 27
Electronic main key
Changing batteries .................................................. 343
Synchronizing remote control ............................... 345
Electronic stability program (ESP) ............................. 243
Control switch .......................................................... 245
Synchronizing .......................................................... 244
Electronic traction system (4-ETS) .............................. 241
Emergency call
See Tele Aid ............................................................... 192
Emergency tensioning retractor (ETR) .........................65
Emergency unlocking in case of accident ................... 41
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