VW Golf manuals

Volkswagen Golf Service & Repair Manual: Assembly overview - coolant pump, thermostat

Assembly overview - coolant pump, thermostat

1 -  Thermostat housing
Removing and installing → Chapter
2 -  Thermostat
For small cooling circuit
Starts to open at approx. 105°C
Different versions. Refer to → Electronic Parts Catalogue.
Removing and installing → Chapter
3 -  Gasket
Renew
4 -  Coolant pump
Removing and installing → Chapter
Renew toothed belt as well when renewing coolant pump
5 -  Bolt
Thread-forming
Fit and screw in bolt by hand so that it screws into old thread Then tighten bolt to specified torque
Specified torque and tightening sequence → Fig.
6 -  Gasket
Renew
Ensure proper seating of seal
Lightly coat with coolant before installing.
7 -  Toothed belt guard
For toothed belt for coolant pump
8 -  Bolt
Renew
20 Nm + 90°
9 -  O-ring
Renew
Only installed in vehicles with engine codes CPTA, CZEA
Removing and installing → Chapter
10 -  Toothed belt
For coolant pump.
Renew toothed belt after coolant pump has been removed
11 -  Toothed belt pulley
For coolant pump.
Removing and installing → Chapter
12 -  Bolt
8 Nm
13 -  Bolt
Thread-forming
Fit and screw in bolt by hand so that it screws into old thread Then tighten bolt to torque
Specified torque and tightening sequence → Fig.
14 -  Cover
For thermostat
15 -  Gasket
Renew
16 -  Thermostat
For large cooling circuit
Up to 11.2012: Starts to open at approx. 80°C
As of 11.2012: Starts to open at approx. 87°C
Removing and installing → Chapter
Installation position → Fig.
17 -  Bolt
Specified torque and tightening sequence → Anchor

 
     
Installation position of thermostat for large cooling circuit
Must be positioned with centring pin in guide -arrow- in thermostat housing.
 

Assembly overview - coolant pump, thermostat

Thermostat housing to coolant pump - tightening torque and sequence
–  Tighten bolts in the sequence -A ... F- to 8 Nm.
 

Assembly overview - coolant pump, thermostat

Cover for thermostat to thermostat housing - tightening torque
–  Tighten bolts for cover -1- in the sequence -A ... D- to 8 Nm.
 

Assembly overview - coolant pump, thermostat

Coolant pump, regulation of cooling system
...

Assembly overview - electric coolant pump
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