Volkswagen Golf Workshop Service and Repair Manuals

Removing and installing thermostat Special tools and workshop equipment required

t  Special wrench, long reach -T10058- Removing Proceed as follows: –  Drain coolant → Chapter.

–  Pull cover off air duct (release clips on sides) -arrows-.

–  Unclip air duct at the bottom by releasing clips -arrows-. –  Detach air duct at bottom together with air hose. Vehicles with sound generator: –  Remove charge air duct to sound generator → Chapter.

All: –  Loosen hose clip -2-. –  Remove bolt -4-. –  Disconnect electrical connector -arrow-. –  Remove bolt -1- and take out air pipe downwards.

–  Move coolant hose -2- and wiring harness -1- clear. –  Remove bolt -arrow- and remove bracket.

–  Remove bolt -2- at bracket for coolant pump for continued circulation -V51-.   Note The continued circulation coolant pump -V51- remains installed.

–  Disconnect coolant hoses -1 and 2- and move clear to one side.

–  Loosen nut -2-, remove bolt -1- and swivel support for intake manifold slightly to right. –  Remove coarse oil separator → Chapter.

–  Unscrew bolts -arrows- and remove union. Allen key, long reach 5 mm -T10058- is helpful for removing the right-hand bolt. –  Detach thermostat. Installing l  Specified torques → Chapter. Installation is carried out in the reverse order; note the following:   Note Renew gaskets, seals and O-rings. –  Clean sealing surface for O-ring. –  Moisten O-ring with coolant.

–  Insert thermostat -4- in coolant pump housing -5- and swivel forwards slightly -arrow-. –  Fit connection -3- carefully (insert centralising pin -2- in guide -1-).