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Author Topic: Heater Problem  (Read 803 times)

Offline WT007

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Heater Problem
« on: April 29, 2012, 09:48:12 pm »
Hi all my gti has developed problem with the heater and aircon.

1st aircon does not work at all the compressor does not turn on, just had it regased and was advised no leaks. checked fuses etc all ok had a small sensor changed the one that sits behind the rad made no change.

2nd With the cc set to say 20 the heat that comes out the vents is 38.7 this is when the engine is hot and intermittent.

Car is a 07 plate any help welcome please.

Cheers




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Offline vRStu

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Re: Heater Problem
« Reply #1 on: April 29, 2012, 09:50:59 pm »
There are temperature sensors that are fitted into the trunking for the ventilation that are only held in by rubber grommets and can easily come out.  There may be a fault on the A/C panel.

VCDS Scan will no doubt reveal more.
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Stu...

Quartz Grey Audi A4 3.0 TDi S-Line Quattro, 7 Speed S-Tronic, 19" Twin Spoke Alloys, Alcantara Upholstery with Silver Stitching and Heating, Sat Nav High, B & O Sound, Audi Music Interface, DAB Radio, Parking Advanced with Rear View Camera, Advanced Keyless Entry, LED Interior Light Pack, Hill Hold Assist, Heated and Electrically Folding Mirrors, Through Load.

RNS510 Video in Motion unlocking, PIN recovery & DVD Region Free available

Offline WT007

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Re: Heater Problem
« Reply #2 on: April 29, 2012, 10:06:12 pm »
Sorry forgot to mention VCDS comes up with low aircon prussure, The aircon machine re gasses and has no faults?
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Offline vRStu

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Re: Heater Problem
« Reply #3 on: April 29, 2012, 10:08:17 pm »
Pressure switch??
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Stu...

Quartz Grey Audi A4 3.0 TDi S-Line Quattro, 7 Speed S-Tronic, 19" Twin Spoke Alloys, Alcantara Upholstery with Silver Stitching and Heating, Sat Nav High, B & O Sound, Audi Music Interface, DAB Radio, Parking Advanced with Rear View Camera, Advanced Keyless Entry, LED Interior Light Pack, Hill Hold Assist, Heated and Electrically Folding Mirrors, Through Load.

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Offline WT007

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Re: Heater Problem
« Reply #4 on: April 29, 2012, 10:14:01 pm »
I sure that was changed i called it small sensor by the rad.
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Offline vRStu

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Re: Heater Problem
« Reply #5 on: April 29, 2012, 10:27:03 pm »
Is the compressor ok?  The clutches on them are prone to failure.
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Quartz Grey Audi A4 3.0 TDi S-Line Quattro, 7 Speed S-Tronic, 19" Twin Spoke Alloys, Alcantara Upholstery with Silver Stitching and Heating, Sat Nav High, B & O Sound, Audi Music Interface, DAB Radio, Parking Advanced with Rear View Camera, Advanced Keyless Entry, LED Interior Light Pack, Hill Hold Assist, Heated and Electrically Folding Mirrors, Through Load.

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Offline WT007

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Re: Heater Problem
« Reply #6 on: April 29, 2012, 10:33:48 pm »
When i press the aircon button i have no indication that the compressor has turned on i was also advised that one of the fans should also come on when the air con is turned on not sure about this? my fan dont come on.
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