Page 22 of 317

19 Instruments and controls
Te ch n ica l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hints Car care Index For more detailed descriptions see index on page 300.
For adjustment of air outlets, refer to climate control, 
see page 98.
1Cup holder, see page 114
2Parking brake release, see page 173
3Parking brake pedal, see page 173
4Steering wheel adjustment lever, see page 70
5Headlamp washer switch, see page 94
6Exterior lamp switch, see page 90
7Cruise control switch, see page 196
8Instrument cluster, see page 76
9Hazard warning flasher switch, see page 94
10Horn (with key in steering lock position 1 or 2), 
Driver airbag, see page 56
11Steering lock with ignition / starter switch, see 
page 162
12Switch for exterior rear view mirrors, electrically 
folding, see page 75
13Windshield wiper / washer switch, see page 9514Transmission control – LOW RANGE mode, see 
page 209
15Indicator lamp for antitheft alarm system
16Auxiliary front fog lamp / rear fog lamp switch, see 
page 92
17MCS (Optional Modular Control System), see 
separate operator’s manual
18Front passenger airbag, see page 56
19Glove box (illuminated with key in steering lock 
position 1 or 2)
20Cup holder, see page 114
21Storage compartment
22Air recirculation switch, see page 98
23Air conditioner on /off switch, see page 98
24Air volume control switch
25Temperature selector switch
26Air distribution switch
27Electrical outlet, see page 230 
     
        
        Page 61 of 317

58 Restraint systems
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
out after approximately 5 seconds; after the lamp goes 
out, the system continues to monitor the components 
and circuitry of the airbag system and will indicate a 
malfunction by coming on again. If the lamp does not 
come on at all or if it fails to extinguish after 
approximately 5 seconds or if it comes on thereafter, 
a malfunction in the system has been detected.
The following system components are monitored or 
undergo a self-check: crash-sensor(s), airbag ignition 
circuits, front seat belt buckles, emergency tensioning 
retractors, seat sensor.
Initially, when the key is turned from steering lock 
position 0 to positions 1 or 2, malfunctions in the 
crash-sensor are detected and indicated (the “SRS” 
indicator lamp stays on longer than 5 seconds or does 
not come on).
Have the system checked at your authorized 
Mercedes-Benz Light Truck Center immediately.In the operational mode, after the indicator lamp has 
gone out following the initial check, interruptions or 
short circuits in the airbag ignition circuit and in the 
driver and front passenger seat belt buckle harnesses, 
and low voltage in the entire system are detected and 
indicated.
Wa r n i n g !
In the event a malfunction of the “SRS” is indicated 
as outlined above, the “SRS” may not be 
operational. For your safety, we strongly 
recommend that you visit an authorized 
Mercedes-Benz Light Truck Center immediately to 
have the system checked; otherwise the “SRS” may 
not be activated when needed in an accident, which 
could result in serious or fatal injury, or it might 
deploy unexpectedly and unnecessarily which 
could also result in injury. 
     
        
        Page 235 of 317

232 Engine compartment
Te ch n ica l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hintsCar care Index
Wa r n i n g !
To help prevent personal injury, stay clear of 
moving parts when the hood is open and the engine 
is running. Be sure the hood is properly closed 
before driving. When closing hood, use extreme 
caution not to catch hands or fingers.The radiator fan may continue to run for 
approximately 30 seconds or even restart after the 
engine has been turned off. Stay clear from fan 
blades.
The engine is equipped with a transistorized 
ignition system. Because of the high voltage it is 
dangerous to touch any components (ignition coils, 
spark plug sockets, diagnostic socket) of the 
ignition system
• with the engine running,
• while starting the engine,
• if ignition is “on” and the engine is turned 
manually.If you see flames, steam or smoke coming from the 
engine compartment, or if the coolant temperature 
gauge indicates that the engine is overheated, do 
not open the hood. Move away from vehicle and do 
not open the hood until the engine has cooled. If 
necessary, call a fire department.