Audi A3 1997 Manual page 124

Audi A3 1997 ➤
Heating, Air Conditioner - Edition 06.2000
◆ The refrigerant hoses are to be connected on the correct side. Different connection and flow direction of the
refrigerant dependent on the type of heat exchanger.
◆ -> Arrangement in a vehicle without map-controlled cooling and a heat exchanger without quick release
couplings:
- Refrigerant hose -A-: supply hose from cylinder head
- Refrigerant hose -B-: return hose to water pump
- The flow direction is marked by an arrow at the connection pipes of the heat exchanger (not visible when
installed).
◆ -> Arrangement in a vehicle without map-controlled cooling and a heat exchanger with quick release cou‐
plings:
- Refrigerant hose -A-: supply hose from cylinder head
- Refrigerant hose -B-: return hose to water pump
- The flow direction is marked by the arrows -C- at the connection pipes of the heat exchanger (visible
when installed).
◆ -> Arrangement in a vehicle with map-controlled cooling:
- Refrigerant hose -A-: supply hose from cylinder head
- Refrigerant hose -B-: return hose to water pump
- The connection pipes of the heat exchanger are made of metal, the flow direction of the refrigerant is not
marked.
◆ Bleeding refrigerant circuit.
118
80 - Heating
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