S6 Quattro Sedan V10-5.2L (BXA) (2007)
/Page-5177008.png)
-
Check the pump/valve unit, it may not make contact with other components (noises).
-
After bleeding the coolant circuit, connect the connectors - D - to the Left Heat Regulation Valve (N175) and Right Heat Regulation Valve
(N176), and - E - to the coolant pump Coolant Pump (V50).
-
Evacuate refrigerant circuit and refill it.
-
After filling the refrigerant circuit, check the refrigerant line connection points in the plenum chamber and evaporator for leaks, e.g. using an
electronic leak detector.
-
Clean coolant residue from the plenum chamber.
-
Install the remaining removed components again in reverse order.
-
Check the DTC memory for the Climatronic Control Module (J255) A/C control head and erase any faults displayed if necessary.
-
Perform a basic setting and output diagnostic test mode on the A/C system.
-
Operate the A/C system after filling the refrigerant circuit => [ A/C System, Operating after Filling Refrigerant Circuit ] See: Description and
Operation/A/C System, Operating after Filling Refrigerant Circuit
