Additional Heater - Audi A4 2001 Owner's Manual

Heater/AC

Additional heater

Control and heater
unit for heating
system J162
- +
K
Combus-
tion air
Fuel pump
The Audi A4 can optionally be equipped with
an additional heater for coolant.
Its mode of operation corresponds to the
systems in use previously.
The additional heater warms the heating-
system heat exchanger in the air conditioner
unit via the cooling-water circuit.
The cut-in time is "programmed" via the dash
panel insert.
86
Glow plug
Fan
drive
Flame sensor
Fuel tank
Combustion chamber
Diffuser
Heating system
heat exchanger
Exhaust
gas
SSP254_023
SSP254_097