Mercedes-Benz Sprinter Operating Instructions Manual page 134

Operating the auxiliary heating system
132
Problems with the auxiliary heating
Problem
The indicator lamp on
the remote control
flashes red rapidly.
The indicator lamp on
the remote control
flashes red and green in
rapid succession.
The indicator lamp on
the remote control
slowly flashes red and
green alternately.
The remote control for
the auxiliary heating
cannot be switched on.
The auxiliary heating
does not switch on.
The auxiliary heating
switches off automati-
cally and/or cannot be
switched on.
Possible causes/consequences and M Solutions
The remote control battery is discharged. Data transmission is not
possible.
Replace the remote control battery (
X
There is no connection between the remote control and the
receiver in the vehicle.
Change your position in relation to the vehicle, e.g. hold the
X
remote control higher or to the side.
Move closer.
X
If you cannot establish a connection and the auxiliary heating is
switched on, it can then only be deactivated using the y button
( page 123).
Y
or
Several remote controls are being used at the same time.
Switch on the remote control again after a short while
X
( page 126).
Y
or
The remote control is not synchronized.
Synchronize the remote control (
X
The remote control is being synchronized.
Wait until the remote control synchronization process is com-
X
plete ( page 126).
Y
The remote control battery is discharged.
Replace the remote control battery (
X
The outside temperature is above 39 ‡ (4 †). The auxiliary heating
switches off automatically.
The fuel tank is less than Õ full. The auxiliary heating switches off
automatically.
Refuel at the nearest gas station.
X
Then, start the auxiliary heating several times until the fuel lines
X
are full.
or
page 130).
Y
page 126).
Y
page 130).
Y