Mercedes-Benz 2004 E-Class OCS Operator's Manual page 188

i
How long the system will provide heat-
ing depends on the coolant tempera-
ture and the temperature set by the
operator. The blower will run at speed
setting 1 regardless of the air distribu-
tion control setting.
Deactivating
Press button T ( page 180).
The indicator lamp on button T
goes out.
The residual heat is automatically turned
off:
when the ignition is switched on
after about 30 minutes
if the battery voltage drops
Controls in detail
Climate control
187