volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Draining and filling coolant > < Cooling system, coolant
Coolant hose schematic diagram
   
Coolant hose schematic diagram
1 - Radiator
q   Removing and installing → Chapter.
q   If renewed, refill system with fresh coolant.
2 - Coolant circulation pump -V50-
q   The flow of the coolant in the run-on phase is opposite to the flow shown.
q   The function can be checked using final control diagnosis → Vehicle diagnostic tester
3 - Bypass thermostat
q   Check → Chapter.
4 - Thermostat housing
q   With thermostat.
q   Checking thermostat → Vehicle diagnostic tester„Function and component selection“.
5 - Coolant pump
q   Removing and installing.
6 - Cylinder head/cylinder block
q   If renewed, refill system with fresh coolant.
7 - Turbocharger
q   Removing and installing → Chapter.
8 - Expansion tank
  Note
When renewing expansion tank and during service operations, ensure that 2 silicate cartridges → Electronic parts catalogue are always in expansion tank. The silicate cartridges must not be removed.
q   With cap
q   Test cooling system for leaks using cooling system tester -V.A.G 1274 B- and adapter for cooling system tester -V.A.G 1274/8-.
9 - Heat exchanger for heater
q   If renewed, refill system with fresh coolant.
10 - Hose
q   Only for automatic gearbox.
11 - Gearbox oil cooler
q   Only for automatic gearbox.
12 - Bypass thermostat
q   Only for automatic gearbox.
q   Check → Chapter.
13 - Coolant connecting pipe
14 - Engine oil cooler
15 - Intake manifold
q   Removing and installing → Chapter.
16 - Hose
q   Only for additional cooler
17 - Additional cooler
q   Optional equipment.
18 - Hose
q   Only for additional cooler

   

Draining and filling coolant > < Cooling system, coolant