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Author Subject: fans not working
eddy_gti6

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Location: Durham

Registered: 20 Oct 2008

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Post #1
was out and about last night any the temp of my 8 was hitting 100-110 when i was stitting in traffic and my fans wernt kicking in, anyone have any idea whats up?

how do you is there any way i can bridge it so i can use a switch?

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Posted 12th Sep 2009 at 16:51
rudolf

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Location: Skelmersdale

Registered: 07 Apr 2004

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Post #2
Try unplugging the brown temp sensor to see if the fans then come on. If they do, the temp sensor is gone. If only one comes on, one fan could be gone, one relay could be faulty, or the 'Bitron' unit faulty. If your air-con works, turn that on to see if both fans work at half speed.

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Posted 12th Sep 2009 at 16:58
eddy_gti6

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Post #3
where is the temp sensor located? i dont have air-con, has been removed

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Posted 12th Sep 2009 at 17:10
rudolf

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Location: Skelmersdale

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Post #4
On the thermostat housing at the end of the top radiator hose.

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X Reg Astor in need of TLC
R Reg Nile to restore
Set of Lions to fit.
Posted 12th Sep 2009 at 17:50
steve h gti-6

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Location: Carterton

Registered: 04 Dec 2006

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Post #5
When you pull the brown sensor, both fans should kick in on low speed then a few seconds later both should go to high speed if alls well.

If you only get the left hand one or none, check the relays which are located behind your grill in a funny square shaped black box above/inbetween the fans. Inside you will see two green relays and one black relay box.

Pull each one out to see if they have shorted out(maybe the right hand one IIRC), and or replace with some working ones.

Failing that unscrew the connector which is on the bottom right of the rad and clean the connectors best you can.

Thats a rough guide to how i sorted mine on my 6 so cant be too differant a priciple on your 6 matey.

Apart from the above is where you have to get the fans out and test them to see if they are working/or change the Bitron unit which is located in the front left wheel arch at the top left as you look into the arch.

Hope that helps you out matey

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Posted 13th Sep 2009 at 22:56
eddy_gti6

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Post #6
thanks steve h gti-6 i will have a look in to that later on as only my left hand fan kicks in when i unplug the brown plug

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Posted 13th Sep 2009 at 23:23
steve h gti-6

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Post #7
eddy_gti6 wrote:
only my left hand fan kicks in when i unplug the brown plug


Had to replace my right hand green relay today as it shorted out (Symptoms--only the left hand fan working and no high speed and no fans when A/C on)

Let me know how you get on, ive solved so many problems on my 6 concerning the fans etcLOL LOL LOL

________________________________________

"Gotta Love The 6"

According to my wife i think the 6 is the fastest car in the world, perhaps she is right LoL !
Posted 13th Sep 2009 at 23:27
eddy_gti6

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Post #8
will do mate, thanks for the info, had a busy day today so not had a chance yet

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Posted 14th Sep 2009 at 06:16
jamie_gti-6

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Location: Guildford

Registered: 26 Jun 2009

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Post #9
i had the same problem where my fans wasnt kicking in till about 105/110 i bridged the sensor behind the drivers headlight now all i do is press the AC button for fans to come on
Posted 15th Sep 2009 at 19:47
eddy_gti6

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Post #10
how do you bridge it so they work of the air-con button? I tried swaping the green relays but nothing has changed so i have just left my brown plug unpluged so the driver side fan runs all the time

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Posted 16th Sep 2009 at 15:12
eddy_gti6

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Post #11
anyone help me? looking to wire my fans so i can use me ac button to run the fans

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Posted 16th Sep 2009 at 22:25
steve h gti-6

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Post #12
have checked everything else first like the relays etc before bodging it ? LOL

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Posted 17th Sep 2009 at 01:29
lwgti-6

Senior User

Location: Nottinghamshire

Registered: 27 Oct 2008

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Post #13
Chris, There's a brown sensor behind the drivers headlight which connects onto a pipe (air con i assume), you want to bridge pins 1 and 3 if i remember rightly...When you press the A/C button in the car the fans should come on. I will double check tomorrow and let you know unless anyone confirms this before hand. You might want to disconnect the compressor also lol

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Posted 17th Sep 2009 at 02:33
bininoz

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Location: Arnside

Registered: 08 Jul 2007

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Post #14
Yeah, you have to bridge 1 and 3 Thumbs up

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Posted 17th Sep 2009 at 03:02
eddy_gti6

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Post #15
excelent, i will do that tomorrow. I have removed all my air-con any way, just need 2 find where i have hid the brown plug LOL. Should this run both fans or not? Just i need this sorting as i am going to york on the ¼ mile this sunday and could do with abit extra cold air running to the engine bay

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Posted 17th Sep 2009 at 05:55
bininoz

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Post #16
Yeah, it should definitely run both fans at high speed.

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Posted 17th Sep 2009 at 12:22
eddy_gti6

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Post #17
nice1, will keep you informed

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Posted 17th Sep 2009 at 13:11
eddy_gti6

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Post #18
got round to bridging 1 and 3 on the air-con plug so i can run my fan(s) of the AC button to find only the driver side fan works. still no passanger side fan!!!

i dridged the plug on the fans where 1 of the relays goes and both fans worked so changed the relay and that still didnt sort it so there must be something not triggering the relay for the passanger side fan.
any ideas?

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Posted 19th Sep 2009 at 09:01
bininoz

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Post #19
Instead of 1 and 3, bridge1 and 2. What happens?? should be both fans at low speed.

When you pull the brown plug out does the drivers side fan only come on at high speed???

I know you probably have but have you checked fuse 7 in the compartment in the car??

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Posted 19th Sep 2009 at 17:38
eddy_gti6

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Post #20
yes, if i bridge them both fans work but dont stop, they keep going. then when i take them out only the driver side fan works. any idea what i can do to get it working?

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Posted 20th Sep 2009 at 02:01
bininoz

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Post #21
Will have a look tomorrow at the raceway Thumbs up

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Posted 20th Sep 2009 at 03:13
eddy_gti6

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Post #22
nice1. Thanks mate

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Posted 20th Sep 2009 at 03:17
hitman_

Newbie

Location: Devon, Blazing it up

Registered: 13 Sep 2009

Posts: 30

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Post #23
Hi just had to change the thermostat on the 6 put it back together and no the fans dont work..
i have done the unplug the brown sensor test and have no fans working,
just changed the green relays too, no change there either im just about to check the bitron unit any other suggestions..? Help...!!!!!!!!
Posted 24th Sep 2009 at 17:10
eddy_gti6

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Post #24
what about the fuses? harness plug on the rad fan?

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Posted 25th Sep 2009 at 02:08
jamie.bedford

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Registered: 09 May 2008

Posts: 223

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Post #25
right need to hijack this thread sorry but having these problems as well

when bridging the pins how is that done? sorry im retarded when it comes to stuff like this?

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Posted 7th Oct 2009 at 20:50

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