Air Conditioning

[jbm2k6]

Not sure if I'm posting this in the right form, so please forgive me if I'm putting it in the wrong place.

My 85 Jetta came with factory air conditioning, the majority of which is still removed from me tearing the car down to the metal. When I got the car the a/c wasn't working, but I decided I want to fix it properly since I have the heater box out and what not. As I understand it, there are at least two different styles of evaporators. Could anyone tell me the difference? I'm going to end up replacing the majority of the components, but I want to make sure I buy the right equipment.

Also, what's the deal with the idle on the 85s with a/c running? I know the 86 and up has an automatic idle adjustment.

Thanks!

[R.O.R-2.0]

CIS-L cars have no idle up adjustment..

only the CIS-E cars have that..

why do you feel the urge to replace everything? just fix the broken parts, and call the rest good.. there was only one style of heater box/evaporator that i know of. there are 2 different types of controls tho, cable operated, and vacuum operated. usually the a/c cars have vacuum operated heater boxes..

maybe you should diagnose whats wrong with yours first before you decide to buy 2000 dollars worth of replacement parts?

it probably had a small hole in the condenser, and needed a re-charge was all..

actually, the 85 cars may have had an idle up.. over by the fuel dizzy right next to the engines air intake pipe, there is a valve, with a wire going to it. i believe one of those may be the idle up.. i just remembered a/c cars have 2 valves over there.. my car only has one valve, that does nothing..

[jbm2k6]

Most of it is actually beyond use. The condensor had the lines coming out of it cut, not to mention...the po wasn't too nice in the heater box, which caused me to get another one. the condensor is smashed up beyond repair, and the compressor is leaking. Since I'm fixing the car up, I figure I'll tackle the ac in my adventures. Thanks for the info, I appreciate it. :-)

[Quantum TD]

AFAIK, the evaporators did not change from 1985-1992. I could be wrong though.

Hoses from any MK2 diesel will work.

[mystery3]

Maybe you should diagnose whats wrong with yours first before you decide to buy 2000 dollars worth of replacement parts?

it probably had a small hole in the condenser, and needed a re-charge was all..

The parts are nearly 30 years old, if you're building something other than a beater you just replace these sorts of things during the build. A/c parts wear out and don't like to sit unused for extended periods of time.