VW/AUDI ENGINE/ RADIATOR COOLING FAN CONTROL MODULE

VW/AUDI ENGINE/ RADIATOR COOLING FAN & CONTROL MODULE

The radiator is an integral part of each and every VW, Audi, Skoda and Seat vehicle. Its main objective is to keep the engine oil cool which in turn keeps all the moving parts of the engine cool. Most cars have a radiator fan with a separate fan for the air conditioner however, VAG vehicles have an integrated Radiator and Condenser Fan Assembly,  as can be seen in the image below. Be that as it may, it is not a one size fits all situation. Virtually every VW, Audi, Seat and Skoda vehicle category has a slightly different fan which is very evident when looking at the different three character alphanumeric prefix and the alpha suffix in their part numbers. View the list below to see what I mean.

Radiator and Condenser Fan Assembly.  The fan on the right is 360mm in diameter
with a 4-pin main connector rated at 300W.  The fan on the left is 295mm  with a 2-pin
female connector, and rated at 200W. 

The flip side of the Radiator and Condenser Fan Assembly

Be aware that a VW Polo 9N and 6R have different fans, an Audi A3 and a Q7 have different fans, a Skoda Fabia and a Roomster have different fans, a Seat Ibiza and a Seat Leon have different fans and the same and the same goes for Passat, Golf, Beetle, Tiguan, Touran, Fox, Transporter, Jetta, etc...  Having said all that, suffice to say that all these fans are troublesome, they burn out, the fins disingrates, they go open circuit and I've even known a few to go short circuit and blow its 30 amp fuse.

VW THERMOSTATICALY CONTROLLED  RADIATOR FAN 

6Q0 959 455AF Engine type: BBX - VW POLO
6R0 959 455D  Engine Code: Polo Vento
6Q0 959 455AE Engine Code: BZG - Fabia,
6Q0 959 455AE Engine Code: BMS -  Fabia, Roomster
6Q0 959 455 N Engine Code: BNM, BAY, BNV, - VW Polo, Fox,
1K0 959 455P  Engine Code: BSE  - Audi A3
1K0 959 455N  Engine Code: BLR - Passat
1K0 959 455DH Engine Code: BMY - VW Touran
1K0 959 455P  Engine Code: BMY -VW Golf
1J0 959 455   Engine Code: AKQ - VW Golf
1K0 959 455ET Engine Code: CFG - VW Tiquan
1K0 959 455FR Engine Code  CFGB - VW Tiquan
6Q0 959 455AD Engine Code: CAYB -VW Polo
6R0 959 455   Engine Code: CFWA - Skoda
6Q0 959 455AD Engine Code: AMF - Polo, Skoda Fabia, Seat Ibiza
6E0 959 455A  Engine Code: AAA - VW Golf, Passat, Polo
7L0 959 455F  Engine Code: CBFA, CCTA - Audi Q7
8D0 959 455   Engine Code: AFB - Audi A6/A8, VW

This list is by no means complete and there are probably a few dozen more variations. These fans are made  by Brose 
(Puebla/Mexico),   Behr Hella Services GmbH (Germany), Wenzhou (Mainland China) and several other an OE manufacturer expressly for the Volkswagen Group with OEM replacement part numbers 1K0959455DT, 1K0959455CQ, 1K0959455N, 1K0959455DL, 1K0959455FE, 1K0959455FJ, etc.  These are predominantly the 300W, 4-pin main connector with 2-pin female secondary connector type, guaranteed to fit the following VW and Audi models. 

2006-2013 Audi A3

2008-2015 Audi TT

2009-2015 Audi TTS

2012-2014 Audi TTRS

2012-2012 Volkswagen Beetle (up to 3/4/2012, VIN specific)

2009-2015 Volkswagen CC

2007-2015 Volkswagen EOS

2006-2014 Volkswagen GTI

2010-2014 Volkswagen Golf

2005-2012 Volkswagen Jetta (up to 3/4/2012, VIN specific)

2006-2010 Volkswagen Passat

2012-2012 Volkswagen Passat (up to 3/4/2012, VIN specific)

2008-2008 Volkswagen R32

2006-2009 Volkswagen Rabbit

2009-2015 Volkswagen Tiguan

The 360mm Radiator fan, notice the four wires in the plug, two thick and two thin.

However, in order to avoid future problems, it is highly recommenced by the fan manufactures that the controller module should be replaced together with correct fan.  The list below are just a few of the radiator controller modules / relays that support the glut of VAG fans. These relays are  VIN specific, so please verify existing part number with the supplied part for correctness.  These contollers are manufactured in Hungary,  Brazil, and Germany. 

1H0 919 506 A -VW Golf MK2 MK3, GTI 8V
1H0 919 506 B - VW Golf MK2 / MK3 GTI 8V
1J0 919 506 G - VW Golf, Lupo, caddy, Audi A3
1J0 919 506 K - Seat Arosa, Leon, Toledo, Skoda Octavia
1J0 919 506 L -  VW, Audi, Skoda & Seat
1J0 919 506 M - Polo, etc
1J0 919 506 P -Golf MK4 , etc,
1J0 919 506 Q - Golf Mk4 GTI, etc

4 and 14 Pin radiator controller module

4 and 10 pin radiator controller module

As mentioned earlier, the fans and controllers are troublesome but the German manufactured version is a lot better and thus last much longer but it is also pricier.  Notice that the main part number on both the above images are the same except for its prefix. The real difference is that the top module has 14 contacts on its right side connector whereas the middle module has only 10 and the bottom module has only 6.  The 2 images below gives you  good idea of the variations in modules. The final image shows how these modules burn.

Main and secondary connectors with 4 and 10 pins respectively.

The secondary plug has 14 pins

This is what happens to the modules made in Hungary and Brazil.

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