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VW MKIV-A4 TDIs (VE and PD) This is a general discussion about A4/MkIV Jetta (99.5-~2005), Golf(99.5-2006), and New Beetle(98-2006). Both VE and PD engines are covered here.

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Old June 10th, 2011, 13:44   #1
The Dispather
Join Date: Aug 2007
Location: Bensalem PA (19020)
Default 2004 Jetta TDI - Air Conditioning Problems

I have a 2004 Jetta TDI, Automatic Transmission, BEW Engine. My air conditioner has failed.

The AC button lights up when I press it, but no cold air comes out.

I took it to my father, and he did some basic troubleshooting on it. He discovered that the "Low Pressure Side" is over pressured.

We forced the Air Conditioner to come on, and a pressure release valve blew out some pressure.

My father is really at a loss. Would anyone have any suggestions?

Thank You. PRH
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Old June 11th, 2011, 08:27   #2
Veteran Member
Join Date: Jan 2009
Location: GA
Fuel Economy: 42.79 mpg Woot!

The expansion valve is clogged or the system is over charged would be my guess.
800 club. 828.5 miles, 16.33 gallons, 50.79 mpg.
2004 Jetta GLS Wagon TDi-17/22, 2.5 DP.2.5 Exhaust, Stage 5 Malone Tune.3 bar MAP, pd150 Injectors, Ebay FMIC, 1.8T Pancake pipe. Gutted PD100 intake.
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Old June 11th, 2011, 13:39   #3
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Join Date: Jun 2004
Location: Pensacola FL

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