Instrument panel
Rev counter
The rev counter
shows the engine speed. The scale is divided into 3 engine speed ranges.
 |
 | Economical speed range
(green) |
 | Vehicles with a diesel engine:
engine brake operating range (yellow) |
 | Overrevving range, danger of engine
damage (red) |
|
Observe the rev counter while driving and keep it within
economical engine speed range
.
When driving downhill, make sure that the engine speed does not
enter red danger zone .
Idle speed is
regulated automatically as a function of coolant temperature.
See notes on setting the idle speed
more.
 | |
|
The warning buzzer will sound if the maximum engine speed limit is exceeded.
The engine will become quieter if the maximum permissible engine speed is exceeded. For this reason, you should not drive and change gear by the sound of the engine, but according to the engine speed shown by the rev. counter.
Avoid driving in the red or red hatched overrevving range. Otherwise, you could damage the engine.
|
Economical
engine speed range
Operating the vehicle in economical engine speed range
reduces fuel
consumption and wear.
In some situations it may make sense to operate the engine
outside the economical engine speed range
, e.g. on uphill
gradients or when overtaking.
Fuel/AdBlue gauge
 |
Turn the vehicle
key to the drive position in the ignition lock.
|
| |
Check the level
shown on the fuel/AdBlue gauge and top up if necessary.
|
| |
Before topping up
the tanks, stop the engine and deactivate the auxiliary
heating.
|
AdBlue
gauge
The
AdBlue gauge only provides a general indication of the AdBlue level. The AdBlue
level is indicated by 4 blue segments in the gauge.
|
1
segment
|
AdBlue level
between reserve level and ¼ full tank
|
|
2
segments
|
AdBlue level
between ¼ and ½ full tank
|
|
3
segments
|
AdBlue level
between ½ and ¾ full tank
|
|
4
segments
|
AdBlue level
between ¾ and full tank
|
 | |
|
The
current AdBlue supply in litres can be shown in the display of the on-board
computer
more.
|
Automatic
AdBlue gauge
|
AdBlue level
sufficient
|
|
Segments
|
At least
1 segment is lit
|
|
Display
|
-
|
|
Indicator
lamp
|
-
|
|
AdBlue reserve
level
|
|
Segments
|
No segments are
lit
|
|
Display
|
 Top
up with AdBlue
|
|
Indicator
lamp
|
-
|
|
AdBlue used
up
|
|
Segments
|
No segments are
lit
|
|
Display
|
Top
up with AdBlue
|
|
Indicator
lamp
|
|
Fuel
gauge
If the
fuel level drops to approx. 14 % of the tank capacity,
appears on the
display. At the same time, the segments in the status indicator light up
yellow.
Gas gauge
 |
| Gas gauge |
|
|
1
|
approx. 200 bar
|
|
0
|
approx. 15 bar
|
| |
|
The current natural gas supply in bar can be shown in the display of the on-board computer more.
|
Outside temperature/coolant temperature
The on-board computer display can show either the outside temperature or the coolant temperature.
Every time the vehicle key is turned to the radio position in the ignition lock, the display switches back to the outside temperature.
Depending on the country of delivery, the temperature display is set to Celsius (°C) or Fahrenheit (°F) when the vehicle leaves the factory.
The unit of measurement can be changed in the on-board computer in the Settings menu more.
| |
Turn the vehicle key to the drive position in the ignition lock.
|
 |
| Selector button for outside temperature/coolant temperature display |
|
Outside temperature display
 | Risk of accident |
|
The road surface may be icy, especially in wooded areas or on bridges, even if temperatures are just above freezing point. The vehicle could skid if you fail to adapt your driving style. You should therefore always adapt your driving style and speed to suit the weather conditions.
|
Changes in the outside temperature are shown with a delay.
 |
| Outside temperature display |
|
Display in the rev counter
Coolant temperature display
 |
| Coolant temperature display |
|
Display in the rev counter
In case of a coolant temperature warning, the coolant temperature is automatically displayed.
When the coolant temperature warning disappears, the outside temperature appears again (if it was previously active).
Brake circuit supply pressure
| Risk of accident |
|
A leaking compressed-air brake system jeopardises the operating and road safety of the vehicle. If the supply pressure in the compressed air braking system is too low, it is not possible to brake the vehicle and shift gears. You could cause an accident, thereby endangering yourself and others.
Do not pull away until the required supply pressures have been reached and the STOP lamp has gone out.
Do not start driving or stop as quickly as traffic conditions allow if  appears in the display. Do not pull away, or if the vehicle is already in motion, stop as soon as possible, paying attention to road and traffic conditions. In addition, the status indicator lights up red and the STOP lamp remains lit.
Have the brake system checked and repaired at a qualified specialist workshop which has the necessary specialist knowledge and tools to carry out the work required.
Mercedes-Benz recommends that you use a Mercedes-Benz Service Centre for this purpose. All work relevant to safety or on safety-related systems must be carried out at a qualified specialist workshop.
|
| Indicator lamp, brake
circuit 1 |
| Indicator lamp, brake
circuit 2 |
| Supply pressure gauge, brake circuit
1 or 2 |
Sufficient supply
pressure in the individual compressed-air circuits of the brake system (min. 10
bar) is required to ensure the operational safety of the vehicle. The auxiliary
consumer circuit is only filled after brake circuits 1 and 2 have been
filled.
A brake
circuit with low supply pressure is automatically displayed by indicator lamp
or
. The pressure in
this brake circuit appears on display .
| |
|
The
supply pressure of both brake circuits can be shown in the display. To do so,
call up
Monitoring
info >
Supply
pressure from the menu
more.
|
The required
supply pressure for the service brake is 10 bar.
