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248 Driving systems
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Switching transfer case
Switching from “HIGH” to “LOW”:
•The shift procedure can only be performed with the
engine running.
•The vehicle speed must not exceed 25 mph
(40 km / h).
•Move selector lever for the automatic transmission
to position “N”, see page 207.
Press the “LOW” switch (1).
Once the shift is complete, the gear position “L” is
displayed in the transfer case indicator (3).
If the multifunction display shows the message
“TC SHIFT CONDITIONS NOT FULFILLED”, the shift
does not occur.
At least one shif t con dition was n ot me t. Repe at t he shif t
procedure.
Note:
Do not depress the accelerator when switching the
automatic transmission from position “N” to “D”.If the multifunction display shows the message
“TC IN NEUTRAL”, the shift does not occur.
The transfer case is in neutral. The gear position “N” is
displayed in the transfer case indicator (3). Repeat the
shift procedure.
If the multifunction display shows the message
“TC SHIFT – CANCELLED”, the shift did not take place.
Repeat the shift procedure.
If the multifunction display shows the message
“TRANSFER CASE – VISIT WORKSHOP!”, there is a
malfunction in the system.
Have the vehicle checked at your authorized Mercedes-
Benz Light Truck Center as soon as possible.
For malfunction and warning messages in the
multifunction display, see page 272.
Wa r n i n g !
If TC is in neutral, the “P” position of transmission
will not hold vehicle. The parking brake must be
applied to hold vehicle in place.
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250 Driving systems
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
If the multifunction display shows the message
“TC IN NEUTRAL”, the shift does not occur.
The transfer case is in neutral. The gear position “N” is
displayed in the transfer case indicator (3). Repeat the
shift procedure.
If the multifunction display shows the message
“TC SHIFT – CANCELLED”, the shift did not take place.
Repeat the shift procedure.
If the multifunction display shows the message
“TRANSFER CASE – VISIT WORKSHOP!”, there is a
malfunction in the system.
Have the vehicle checked at your authorized Mercedes-
Benz Light Truck Center as soon as possible.
For malfunction and warning messages in the
multifunction display, see page 272.Note:
If the electronic key is in starter switch position 0 or 1,
an alarm will sound if the transfer case is in
position “N” and the drivers door is opened.
Engage transfer case to gear position “HIGH” or “LOW”.
Wa r n i n g !
If TC is in neutral, the “P” position of transmission
will not hold vehicle. The parking brake must be
applied to hold vehicle in place.
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Page 264 of 385
261 Check regulary and before a long trip
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Check regularly and before a long trip 1Engine oil level
See “Checking engine oil level” on page 304 and
“Engine oil level indicator” on page 127.
2Coolant level
See “Coolant level” on page 306.
3Brake fluid
See “Brake fluid” on page 363.
4Windshield washer system/
Headlamp cleaning system/
Rear window washer system
For refilling reservoir see page 307.
Opening hood, see page 302.
Vehicle lighting: Check function and cleanliness. For
replacement of light bulbs, see “Exterior lamps” on
page 328.
Exterior lamp switch, see page 129.
2
1
3
4
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263 Contents - Instrument cluster display
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
Instrument cluster displayMalfunction and indicator
lamps in the
instrument cluster ....................264
On-board diagnostic system .........265
Check engine malfunction
indicator lamp .............................265
Brake warning lamp ..................266
Supplemental restraint system
(SRS) indicator lamp ..................267
Fuel reserve warning .................268
ABS malfunction
indicator lamp .............................269
Electronic stability program
(ESP) — warning lamp ...............270
Seat belt nonusage
warning lamp .............................270
Malfunction and indicator lamp
in the center console ................ 271
AIRBAG OFF indicator lamp ..... 271Malfunction and warning
messages in the
multifunction display .............. 272
DISPLAY DEFECTIVE
(engine control unit) ................. 273
DISPLAY DEFECTIVE
(several systems) ....................... 273
BATTERY / ALTERNATOR ........274
ANTILOCK BRAKE SYSTEM .... 275
BRAKE ASSIST ............................276
BRAKE PAD WEAR .................... 277
BRAKE FLUID ............................ 277
PARKING BRAKE ....................... 278
SEAT BELT SYSTEM .................. 278
ELEC. STABIL. PROG.
(Electronic stability program) . 279
COOLANT
(coolant level) ............................. 280
COOLANT
(coolant temperature) ............... 281
ENGINE OIL LEVEL ................... 282LIGHTING SYSTEM ....................283
LIGHT SENSOR ...........................285
DOOR ...........................................285
TRUNK OPEN .............................286
HOOD ...........................................286
TELEPHONE – FUNCTION .......287
TELE AID .....................................287
WASHER FLUID .........................288
RESTRAINT SYSTEM .................289
KEY ...............................................289
FUEL RESERVE ..........................290
UNDERVOLTAGE ........................290
ELECTRONIC BRAKE BOOSTER
(EBB) ............................................ 291
ENGINE AIR FILTER .................. 291
TC SHIFT ....................................292
TC SHIFT CONDITIONS ............292
TC IN NEUTRAL .........................293
TRANSFER CASE .......................293
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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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275 Malfunction and warning messages
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index ANTILOCK BRAKE SYSTEM
* C = Category, see page 2721 Transfer case differential lock is active, the ABS is not available.
2 Have the brake system checked at your authorized Mercedes-Benz
Light Truck Center as soon as possible.
3 The display or the system is malfunctioning.
See page 239 for notes on the antilock brake system
(ABS).
Line 1 Line 2 C*
ABS NOT ACTIVE LOCK ACTIVE
1
1
ABS SYSTEM VISIT WORKSHOP!
2
2
DISPLAY DEFECTIVE VISIT WORKSHOP!
3
2
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277 Malfunction and warning messages
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index BRAKE PAD WEAR
* C = Category, see page 272When this message appears during braking, it indicates
that the brake pads are worn down.
Have the brake system checked at your authorized
Mercedes-Benz Light Truck Center as soon as possible.BRAKE FLUID
* C = Category, see page 272 Line 1 Line 2 C*
BRAKE PAD WEAR VISIT WORKSHOP! 2Line 1 Line 2 C*
BRAKE FLUID VISIT WORKSHOP! 2Wa r n i n g !
Driving with this message displayed can result in
an accident. Have your brake system checked
immediately. Do not add brake fluid before
checking the brake system. Overfilling the brake
fluid reservoir can result in spilling brake fluid on
hot engine parts and the brake fluid catching fire.
You can be seriously burned.
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Page 286 of 385
283 Malfunction and warning messages
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index LIGHTING SYSTEM
Line 1 Line 2 C*
3RD BRAKE LAMP
3
CHECK LAMPS! 2
ADD. TURN SIG LAMP, RH CHECK LAMPS! 2
ADD. TURN SIG LAMP, LH CHECK LAMPS! 2
AUTOM. LIGHT ON REMOVE KEY! 1
BRAKE LAMP
2
VISIT WORKSHOP! 2
BRAKE LAMP, L CHECK LAMPS! 2
BRAKE LAMP, R CHECK LAMPS! 2
LOW BEAM, L CHECK LAMPS! 2
LOW BEAM, R CHECK LAMPS! 2
VISIT WORKSHOP!
1
DISPLAY DEFECTIVE 2
FRONT FOGLAMP, L CHECK LAMPS! 2
FRONT FOGLAMP, R CHECK LAMPS! 2
HIGH BEAM, L CHECK LAMPS! 2
HIGH BEAM, R CHECK LAMPS! 2
LICENSE PLATE, L CHECK LAMPS! 2
LICENSE PLATE, R CHECK LAMPS! 2
LIGHTS SWITCH OFF LAMPS! 1
LEFT FRT. PARK LAMP CHECK LAMPS
SUBSTITUTE LAMP ON!
4
1
RIGHT FRT. PARK LAMP CHECK LAMPS
SUBSTITUTE LAMP ON!
4
1
TURN SIGNAL F, L CHECK LAMPS
SUBSTITUTE LAMP ON!
4
2 Line 1 Line 2 C*
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