Mercedes-Benz GLE COUPE Operator's Manual page 284

Features
282
the maximum wattage of the device to be
R
connected must not exceed 150 watts.
the on-board power supply is within a permis-
R
sible voltage range.
the 12 V sockets in the rear compartment and
R
the cargo compartment are operational.
Using the 115 V power socket
Problems with the 115 V power socket
Problem
The warning lamp on the
115 V power socket is
not lit.
Possible causes/consequences and M Solutions
The on-board voltage is too low because the battery is too weak.
Start the engine.
X
or
Charge the battery (
X
If the indicator lamp still does not light up:
Visit a qualified specialist workshop.
X
The temperature of the DC/AC converter is temporarily too high.
Remove the electronic device connector from the 115 V socket.
X
Let the DC/AC converter cool down.
X
If the indicator lamp still does not light up after cooling down the
converter:
Visit a qualified specialist workshop.
X
You have connected an electronic device that has a constant nominal
power of less than 150 watts, but has a very high switch-on current.
This device will not work. If you connect such a device, the 115 V
power socket will not supply it with power.
Connect a suitable electronic device.
X
To switch on: switch the ignition on.
X
Open flap =.
X
Insert the plug of the electronic device into
X
115 V power socket :.
Indicator lamp ; lights up.
To switch off: disconnect the plug from
X
115 V power socket :.
Ensure that you do not pull on the cord.
page 313).
Y