volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Assembly overview - parts of cooling system, engine side (Polo) > < Cooling system - fitting locations
Assembly overview - parts of cooling system, body side (Polo)
Assembly overview - parts of cooling system, body side (Polo)
  WARNING
When doing any repair work, especially in the engine compartment, pay attention to the following due to the cramped conditions:
t  Route all the various lines and electrical wiring so that they are in their original positions.
t  e.g. for fuel, hydraulics, activated charcoal filter system, coolant and refrigerant, brake fluid, vacuum.
t  Ensure that there is sufficient clearance to all moving or hot components.
  Note
t  When the engine is warm, the cooling system is under pressure. If necessary, release pressure before beginning repair work.
t  Hoses are secured with spring-type clips. In case of repair, only use spring-type clips.
t  Spring-type clip pliers -VAS 6362- or hose clip pliers -VAS 6340- are recommended for installation of spring-type clips.
t  When installing coolant hoses, route stress-free so that they do not come into contact with other components (observe markings on coolant connection and hose).
   
1 - Clip
q   Renew if damaged.
2 - Upper coolant hose
3 - Expansion tank
q   Checking cooling system for leaks with cooling system tester -V.A.G 1274- and adapter -V.A.G 1274/8- → Chapter.
4 - Cap
q   Check using cooling system tester -V.A.G 1274- and adapter for cooling system tester -V.A.G 1274/9-.
q   Test pressure 1.4…1.6 bar.
5 - 5 Nm
6 - Connector
7 - Coolant hose
8 - Radiator mounting
9 - 5 Nm
10 - Clip
q   Renew if damaged.
11 - Radiator
q   Removing and installing → Chapter
q   Renew coolant after replacing.
12 - Cowling with radiator fan -V7-
q   Removing and installing.
13 - Lower coolant hose
14 - Charge air cooler
q   Can only be removed and installed with radiator → Chapter
15 - Lower mounting
q   Black
16 - Clip
q   Renew if damaged.
17 - Connector
18 - Radiator fan thermal switch -F18-, 35 Nm
q   For radiator fan.
q   Switching temperatures:
l  1. Stage on: 92…97 °C, off: 84…91 °C
l  2. Stage on: 99…105 °C, off: 91…98 °C
19 - Seal
Renew.
20 - Condenser
q   Removing and installing → Rep. gr.87.

   

Assembly overview - parts of cooling system, engine side (Polo) > < Cooling system - fitting locations