TT Quattro Roadster L4-1.8L Turbo (AMU) (2002)
Thermostat: Testing and Inspection
Coolant thermostat, checking, removing and installing
Notes: Always replace seals and gaskets.
Removing
^
Drain coolant system.
Vehicles with air conditioning:
WARNING: The air conditioning refrigerant circuit must not be opened.
^
Unbolt front engine cover support from intake manifold.
^
Detach retainers for refrigerant hoses.
^
Unbolt A/C compressor, lift clear together with refrigerant hoses (do not disconnect) and tie in place on hood lock.
All vehicles:
^
Disconnect coolant hose from connection - 3 -.
^
Unscrew bolts - 4 - and remove connection, O - ring - 2 - and coolant thermostat
Installing
^
Clean and smooth down sealing surface for O - ring as required.
^
Insert coolant thermostat.
^
Installation position: bowed metal strip on thermostat must be vertical.
^
Moisten new O ring with coolant G 012 AS D.
^
Tighten bolts.
^
Fill up with coolant.
Tightening torque
Connection to cylinder block: 15 Nm
Testing coolant thermostat