Mercedes-Benz Zetros 2020 Operating Instructions Manual page 93

Compressed-air system
Display messages
\
Brake sup‐
Example:
ply pressure in
circuit 1 too low
On-board computer event window
Possible causes/consequences and M Solutions
In addition, the J warning lamp lights up red in the instrument
cluster.
The reservoir pressure in brake circuit 1 \ or 2 ^ is too low.
If the reservoir pressure in the spring actuator and the trailer's
brake circuit is too low, the event window shows the J symbol.
Possible causes:
too much compressed air has been consumed
R
there is a leak in the compressed-air system
R
G
WARNING
The operating and road safety of the vehicle are jeopardised.
There is a risk of an accident.
X
Stop the vehicle at once, paying attention to road traffic condi-
tions.
X
Apply the parking brake.
X
Start the engine.
The compressed-air system is charged.
If the J warning lamp in the instrument cluster goes out:
X
Continue the journey.
If the J warning lamp in the instrument cluster does not go out:
X
Check the compressed-air brake system for leaks (
X
If the compressed-air brake system is not leaking, but the J
warning lamp does not go out: have the compressed-air brake
system checked at a qualified specialist workshop.
91
Y
page 105).
Z