Radiator coolant fan (vehicles with engine codes AEG, AVH and AZG), checking

WARNING: This page does not describe the selected car, but rather 20 other vehicles, including the 2009 Volkswagen Golf, 2008 Volkswagen Golf, 2007 Volkswagen Golf, 2006 Volkswagen Golf, and 2005 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.

Special tools and equipment

Fig 1: Identifying V.A.G 1594 A Adapter Set

Courtesy of VOLKSWAGEN UNITED STATES, INC.

V.A.G 1594 A Adapter set
Wiring diagram

Requirements

Fig 2: Locating Coolant Fan Control Thermal Switch

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Main fuses must be OK
Coolant Fan Control (FC) Thermal Switch -F18- OK

Work sequence

Remove left sound insulation tray

Refer to NOISE INSULATION (GASOLINE ENGINES), ASSEMBLY OVERVIEW or NOISE INSULATION (DIESEL ENGINES), ASSEMBLY OVERVIEW

Disconnect 3-pin connector from Coolant Fan Control (FC) thermal switch -F18-
Bridge contact -1- and contact -2- of connector with auxiliary cables from V.A.G 1594 A

Fig 3: Coolant Fan Control Thermal Switch 3-Pin Connector - Connector Type A

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Connector type A

Fig 4: Coolant Fan Control Thermal Switch 3-Pin Connector - Connector Type B

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Connector type B

Fig 5: Coolant Fan Control Thermal Switch 3-Pin Connector - Connector Type C

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Connector type C

1st speed for Coolant fan -V7- and Right coolant fan -V35- must run.

Switch ignition on.
Bridge contact -2- and contact -3- of connector with auxiliary cables from V.A.G 1594 A.
2nd speed for Coolant fan -V7- and Right coolant fan -V35- must run.

If fan 1st or 2nd speeds do not run:

Locate and repair open circuit:

Refer to Electrical Wiring Diagrams, Troubleshooting & Component Locations

If no malfunction in wiring is detected:

Replace Coolant fan -V7- and Right coolant fan -V35-.