Mercedes-Benz 2005 E 320 CDI - Manual (Page 219)

217
Controls in detail
4-zone automatic climate control*
Heater booster system (Diesel engine)
Your vehicle is equipped with a heater
booster system. A PTC heating element
(
୴ page 475) ensures that the vehicle inte-
rior is warmed up as quickly as possible
when the engine has not reached its nor-
mal operating temperature yet.
The heater booster system switches on au-
tomatically if required.
i
The normal display will appear when
the
™ button or the button 5 is
pressed again.
i
If the cooling function for the air condi-
tioning is switched off with the
± button (
୴ page 206), the heater
booster system is deactivated too.