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A/C Gremlin

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orangeokie View Drop Down
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  Quote orangeokie Quote  Post ReplyReply Direct Link To This Post Topic: A/C Gremlin
    Posted: 17-Sep-2018 at 21:00
I am a big proponent of paying the dealer to fix my W8 gremlins. Work always come with a warranty. Only drawback is it is expensive, but the pleasure of driving a perfectly sorted 15 year old collector W8 far out weighs the money for me.

Edited by orangeokie - 17-Sep-2018 at 21:01
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  Quote dubu8 Quote  Post ReplyReply Direct Link To This Post Posted: 12-Sep-2018 at 23:05
More updates:

Still working on this, w8 life

1. Climatonic was replaced with a used one from another w8er
2. Fans where bad (confirmed) particularly the control unit, ordered new from Germany, none in America
3. A/C lines were dirty (not sure how but that's what I've been told maybe damage from years of neglect)
4. The AC Schrader valve was discovered to be bad
5. 8A0820855AA is the part of an 2003 but wrong so trying 8A0820855AB from a 2004
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  Quote dubu8 Quote  Post ReplyReply Direct Link To This Post Posted: 23-Jul-2018 at 18:15
Update:

1. Was leaking oil at the oil cooler fitting. Mechanic managed his wizardy and got another fitting.
2. Washer fluid was from a hose (can't remember excatly which)
3. Climatronic unit went bad (didn't see that coming but makes sense why the A/C would never come on
4. Odd amounts of junk getting caught in the orifice filter
5. Some fitting in the AC lines where replaced
6. Chance my fan may we bad
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RobG View Drop Down
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  Quote RobG Quote  Post ReplyReply Direct Link To This Post Posted: 23-Jul-2018 at 15:55
wash fluid leak could be on the headlight washers, same tank although the headlight washers stop working when the tank is between 1/2 to 1/3 full (so you can still scoosh the windows) On mine one of the feed hoses perished just below the washer jet.
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  Quote dubu8 Quote  Post ReplyReply Direct Link To This Post Posted: 26-Jun-2018 at 05:38
No answer from the shop yet

Ongoing update

1. Leaking unknown liquid looks like oil, brown/orange in color
2. Topped off my washer fluid and i'm dripped out a gallon over the last few days
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  Quote dubu8 Quote  Post ReplyReply Direct Link To This Post Posted: 22-Jun-2018 at 05:00
Will ask in the morning
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  Quote Uberhare Quote  Post ReplyReply Direct Link To This Post Posted: 22-Jun-2018 at 04:28
see edit above. ECU will also show if it is commanded on I believe.
04 Passat W8 Wagon,10 A3 TDI, 05 Passat TDI Wagon (6spd M/T), 93 Corrado VR6
89 VW LT31 Florida, 89 Vanagon Whitestar, 67 Beetle Limo, 64 PA28-140
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  Quote dubu8 Quote  Post ReplyReply Direct Link To This Post Posted: 22-Jun-2018 at 04:27
Might have jumped the high pressure valve. The result was cold air in the cabin but the methodology of it's execution.

I can gladly ask any questions and ideas you may bring to this topic

Bear with me I understand in theory what he has done but I wasn't actually there.

Oddly though my engine bay I on the hotter side, says within operating temperatures no problem (recent thermostat replacement) but ambient temperatures are off by about 10°F
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  Quote Uberhare Quote  Post ReplyReply Direct Link To This Post Posted: 22-Jun-2018 at 04:17
No you can't "jump" the compressor on this car, in fact you can damaged the RCV (refrigerant circulation valve) in doing so.

Sounds like the ECU isn't engaging it. Check the thrust sensor with vagcom - maybe it thinks the system is low from a faulty reading.

Edited by Uberhare - 22-Jun-2018 at 04:27
04 Passat W8 Wagon,10 A3 TDI, 05 Passat TDI Wagon (6spd M/T), 93 Corrado VR6
89 VW LT31 Florida, 89 Vanagon Whitestar, 67 Beetle Limo, 64 PA28-140
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  Quote dubu8 Quote  Post ReplyReply Direct Link To This Post Posted: 22-Jun-2018 at 04:16
Correction:

1. Compressor bearing had failed and was squeaking

Clarification:

1. Where me and my mechanic stopped at was that he can jump and force the compressor on but it's just backing up pressure and the fan isn't turning on with the A/C on.
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