Mercedes-Benz A Series 2015 Owner's Manual page 292

Display messages
Active bonnet mal‐ Active bonnet mal‐
function See Own‐ function See Own‐
er's Manual er's Manual
C
j
Check trailer Check trailer
hitch lock hitch lock
&
inoperative Bat‐ inoperative Bat‐
tery Low tery Low
&
inoperative Refuel inoperative Refuel
vehicle vehicle
&
inoperative See inoperative See
Owner's Manual Owner's Manual
Possible causes/consequences and M M Solutions
The active bonnet (pedestrian protection) is not active due to a
malfunction or because it has already been triggered.
Consult a qualified specialist workshop.
X
At least one door is open. A warning tone also sounds.
Close all doors.
X
The trailer tow hitch is not correctly engaged.
A warning tone also sounds.
G WARNING
If the ball coupling is not engaged, the trailer may come loose.
There is a risk of an accident.
Stop the vehicle immediately, paying attention to road and traf-
X
fic conditions, and switch off the engine.
Safeguard the vehicle against rolling away (
X
Engage the trailer coupling's ball coupling in the end position
X
( page 232).
Y
The on-board voltage is too low. The auxiliary heating has switched
itself off or cannot be switched on (
Drive for a considerable distance.
X
The battery charges. The auxiliary heating is operational again as
soon as the on-board electrical system voltage is sufficient.
There is too little fuel in the fuel tank. The auxiliary heating cannot
be switched on ( page 148).
Y
Refuel at the nearest filling station.
X
The auxiliary heating is temporarily malfunctioning or faulty.
If the vehicle is on a level surface and the engine has cooled down:
Make up to four attempts to switch on the auxiliary heating,
X
waiting several minutes between each attempt (
If the auxiliary heating does not switch on:
Consult a qualified specialist workshop.
X
Display messages
page 184).
Y
page 148).
Y
page 148).
Y
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Z