Mercedes-Benz Zetros 2020, Operating Instructions Manual

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Double-tank system
Fuel display
If fuel tank switch
:
is in rest position, the
level of fuel tank I is displayed in the fuel
gauge (
Y
page 68).
X
Fuel gauge of fuel tank II: press the lower
section of fuel gauge switch
:
.
The level of fuel tank II is displayed after
approx. two minutes in the fuel gauge
(
Y
page 68).
i If the fuel line between fuel tank I and fuel
tank II is open, the same level is shown for
both fuel tanks.
Double-tank system (version 1)
Fuel tank
:
Fuel switchover valve
;
Fuel tank I
=
Shutoff valve
?
Fuel tank II
The vehicle is equipped with two fuel tanks. If
one of the fuel tanks is defective, it can be dis-
abled and the other fuel tank can be used
instead.
If shutoff valve
=
is open, the fuel should
mainly be taken from front fuel tank
;
.
i During prolonged driving on extreme uphill
or downhill gradients, fuel may collect in the
lower fuel tank if the fuel expansion line is
open. Depending on the position of fuel
switchover valve
:
and whether there is a
low fluid level, there is a risk that the vehicle
will no longer be supplied with fuel.
Running the fuel tank empty can be avoided
by closing shutoff valve
=
. If the fuel
expansion line remains open, switch to the
lower fuel tank for the supply of fuel.
Selecting a fuel tank for fuel supply
1
Fuel tank I
2
Fuel tank II
X To change from fuel tank I to fuel tank II,
turn fuel switchover valve thumbwheel
:
to
position
2
.
Disabling a fuel tank
1
Fuel expansion line open
2
Fuel expansion line closed
X
To close the fuel expansion line between the
fuel tanks, move lever
:
of the shutoff
valve to position
2
.
126
Refuelling
Driving mode