Mercedes-Benz A Series Owner's Manual page 226

Problem
The indicator lamp in the F/
1 rear-window heating button
is flashing. The rear-window heat-
ing has switched itself off prema-
turely or cannot be switched on.
Vehicles with automatic child
seat recognition on the front-
passenger seat:
The 5 PASSENGER AIRBAG
OFF warning lamp on the centre
console is lit.
You have started the engine with
the key. The indicator lamp in the
ECO start/stop function* button
does not light up or goes out
again after a short time.
* optional
Possible cause/consequence
The on-board voltage is too low,
because too many consumers are
switched on.
A special Mercedes-Benz child
seat with automatic child seat
recognition has been fitted to the
front-passenger seat. The front-
passenger airbag has therefore
been disabled as desired.
G Risk of injury
There is no child seat fitted to the
front-passenger seat. The auto-
matic child seat recognition is
malfunctioning.
You have deactivated the ECO
start/stop function*.
The ECO start/stop function*is
not available due to a fault.
Suggested solutions
Switch off consumers that are not required, e. g. reading lamp or
X
interior lighting.
Once the battery is sufficiently charged, the rear window heating
will switch back on automatically.
Remove electronic equipment from the front-passenger seat, for
X
example
notebook
R
mobile phone
R
cards with transponders, e.g. ski passes or access passes
R
If the 5 PASSENGER AIRBAG OFF warning lamp is still lit:
Visit a qualified specialist workshop.
X
Activate the ECO start/stop function* again.
X
Visit a qualified specialist workshop.
X
Practical advice
Troubleshooting
Z
223