Dodge 2007 Sprinter Owner's Manual page 139

Tempmatic
To switch on: press the switch ³.
The indicator lamp in the switch comes
on.
i
If you switch off the engine without
switching off the heater booster func-
tion, the system will be switched on the
3
next time the engine is started (memo-
ry function).
To switch off: press the ³ switch
again.
The indicator lamp in the switch goes
out.
The heater booster function operates
for around a further 2 minutes and then
switches off automatically.
Electrical heater booster system
The vehicle is equipped with an electrically
powered heater booster system.
The heater booster system ensures that
the vehicle interior is heated up as quickly
as possible during the engine's warm-up
phase.
i
The heater booster system switches on
automatically as required.