Mercedes-Benz V-Class 2021 Owner's Manual page 313

310 Display messages and warning and indicator lamps
Display messages
&
inoperative Refuel vehi-
cle
&
inoperative See Owner's
Man.
Lights
Display messages
b
Left dipped beam (exam‐
ple)
Adaptive Main-beam
Assist inoperative
Adaptive Main-beam
Assist currently unavaila-
ble See Owner's Manual
Active Light System inop-
erative
Possible causes/consequences and
* There is too little fuel in the fuel tank. The hot-water auxiliary heater
(stationary heater) cannot be switched on.
Refuel the vehicle.
#
* The hot-water auxiliary heater (stationary heater) is malfunctioning.
When the vehicle is stationary on a level surface and the engine
#
has cooled down, make up to four attempts to switch on the hot-
water auxiliary heater (stationary heater), waiting several
minutes between each attempt (
If the hot-water auxiliary heater (stationary heater) does not switch
on:
Consult a qualified specialist workshop.
#
Possible causes/consequences and
* The corresponding light source is defective.
Have defective LED lights replaced at a qualified specialist work‐
shop.
Observe the notes on changing a bulb (
#
Replace the defective bulb at the front (
#
( page 115).
/
%
Vehicles with LED lights on the trailer: if the current falls below
the minimum of 50 mA, a display message may appear even
though the trailer lights are working properly.
* Adaptive Highbeam Assist is malfunctioning.
Switch high beam on/off manually.
#
Consult a qualified specialist workshop.
#
* Adaptive Highbeam Assist is deactivated and temporarily inopera‐
tive.
The following causes are possible:
The windscreen is dirty in the camera's field of vision.
R
Visibility is impaired due to heavy rain, snow or fog.
R
Clean the windscreen.
#
When the system detects that the camera is fully operational,
the display will show the message
available again
Adaptive Highbeam Assist is operational again.
* The active light function is faulty.
Consult a qualified specialist workshop.
#
M M Solutions
page 131).
/
M M Solutions
page 113).
/
page 114) or rear
/
Adaptive Main-beam Assist