RS 4 Quattro Cabriolet V8-4.2L (BNS) (2008)
-
Insert new seals - A - (included in the delivery scope of the heat exchanger) in the connections of heat exchanger - B -.
-
Insert heat exchanger - C - into the A/C unit.
-
Remove old clamps - A - from both coolant pipes - B - and - C -.
-
Install new (included in delivery of heater core) clamps - A - on both coolant pipes for heater core according to illustration.
-
Push both coolant pipes - B - and - C - into heat exchanger connections - D -.
-
Recheck the seating of the seals between the coolant pipes and heat exchanger.
-
Secure both coolant pipes - B - and - C - with clamps - A - on the heat exchanger.
-
Check the seating of both clamps - A -. They must enclose the flange on the heat exchanger and coolant pipe completely and must not touch other
components.
-
Tighten bolts on clamps - A - to 2.5 Nm.
-
Connect coolant hoses properly to heater core. Observe markings:
A Supply hose from cylinder head
B Return hose to water pump
-
Reinstall the removed components in reverse order of removal except the driver side storage compartment.
-
Bleed the cooling circuit.
‹› The heat exchanger must be additionally bled by the arrangement of the coolant pipes to the heat exchanger of the A/C unit. Proceed as follows: