Volkswagen Workshop Service and Repair Manuals

Removing and installing coolant pipes to heat exchanger   Note Remove heater unit to enable replacement of coolant pipes from engine compartment to heat exchanger → Chapter. Removing

–  Unscrew bolt -1- on flange between heat exchanger connections.

–  Remove screws -A- and take off cover -B-.

–  Open pipe clamps -A- and pull coolant pipes out of heat exchanger. Installing –  Moisten seals -1- with coolant before installing. –  Seat seals -1- into unions on heat exchanger.   Note t  Ensure that seals are installed in the proper direction as shown in figure. t  Renew deformed pipe clamps.

–  Connect coolant pipes to heat exchanger.   Note Seals -1- must always be renewed. –  Moisten seals -1- with coolant before installing.   Note Renew deformed pipe clamps.

–  During assembly, pipe clamps -A- must turn easily on coolant pipes. –  Pipe clamps -A- must be installed as shown in diagram. –  Tighten pipe clamps -A- to 2 Nm.

–  Check seating of both clips -A- after tightening screws. They must fully enclose the flange on the heat exchanger and the coolant pipe and they must not contact other components. –  Tighten bolt -1- from flange between heat exchanger connections to 2 Nm. –  Installing heater → Chapter.