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CLIMatronic HVAC controls for early 928's (and maybe late too)

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CLIMatronic HVAC controls for early 928's (and maybe late too)

 
Old 03-20-2012, 09:08 PM
  #31  
svpmx83
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Originally Posted by Alan View Post
I've also got a design for a water valve mod that ensures it maintains the last commanded mode (open/closed) on shutdown, and that will go in too.
I'm currently using an additional Normally Closed vacuum solenoid to lock it in place on ignition shutdown. The leakdown rate over time is quite good, and in reality it only needs to hold closed until the coolant drops below ambient.


Originally Posted by Champagne View Post
I feel obligated to jump in here.
That's fine Paul,
If the number of posts in the other thread are anything to go by, the plug and play solution Hans is proposing will be very popular.

Last edited by svpmx83; 03-20-2012 at 09:28 PM.
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Old 03-20-2012, 09:57 PM
  #32  
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Originally Posted by svpmx83 View Post

That's fine Paul,
If the number of posts in the other thread are anything to go by, the plug and play solution Hans is proposing will be very popular.
Hey Steve,

please excuse my barging in like that, and please do not take my post as a put down of your efforts.
I think it's incredibly clever. Well done.

I just didn't want all those who followed us to think we had given up on this particular project.

Keep up the good work

Paul
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Old 03-20-2012, 10:27 PM
  #33  
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Paul - I know you and Hans are still working at it (I should have noted Hans & Paul in my post). Neither what Steve or I am working on solves the problem of providing a plug & play solution like you are planning.

Following either path here means a whole lot of fabrication & adaptation work to be done...

Steve - my solution is also a second vacuum solenoid in series to the water valve actuator - it is a flappy solenoid valve with the vent line capped off and normally closed driven by the ignition. When the ignition goes off the HVAC is still on (Acc) and the valve closes - keeping whatever it was before - and as you say if it holds vacuum for a few hours thats is sufficient for the block to cool.

Nice and simple - proposed doing this few years ago, but only added it in recently to test out - it really does make a big difference in hot weather here (hated that initial blast of hot air). Need to finalize the install location - just loose at the moment (want it closer to the water valve).

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Old 03-20-2012, 10:34 PM
  #34  
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Ta Paul,

I saw your post as a harmless plug for the Hans/Paul integrated console components.

For anyone who missed it, about two years ago, Hans announced this project. The window switches also form part of this integrated solution.

Now if only Hans would stop getting distracted by audio equipment projects
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Old 03-21-2012, 01:37 AM
  #35  
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Steve, I am a software guy and have never built a circit board. However, with your insturctions, I just may give it a try. If I don't succeed, how much would you charge to do the soldring stuff. My hands are so messed up from old arthitis that it was all I could do to do my gauge cluster last weekend. I burned the hell out of my left hand because the iron slipped out of the right. Worked well though.

I realy need this, I hit a bump today and the blower just quit working, Looks like the entire system just quit. Was hot as hell here too.

Thanks,
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Old 03-21-2012, 02:08 AM
  #36  
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Hot Climate AC mini emergency control unit as attached FOR 1981 models please double check the wiring for your 86.5

there are two plugs inside the console a 6 pin and a 4 pin

connect 1 & 4 on the 6 pin (this will turn on the fan relay) the four wires in the heat shrink are not connected to anything or each other
connect 1 & 2 on the 4 pin (this turns on the AC compressor) the two yellow wires are the temperature sensors so not needed

Although if a bump killed it I'm not sure the problem will be that simple to fix.

or put some pressure on Hans to get his produced ?

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Old 03-21-2012, 06:22 AM
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Thanks Steve,
I am not sure there is any pressure that can move Hans any faster than he already is. He seems pretty busy with all the projects and I am interested in the carputer. If it was ready, I would probably go that route if the costs are not too bad. I will contact Paul and see where they are with it. Thanks for the tip about the wireing. The only thing I can think of that a bump would have done was to shake a loose electrical connection or maybe the realy on the back of the unit went out. I have the writeup on how to fix that. My todo list on this car is still quite long. I still have the stereo out with the ce panel exposed to r&r the panel. I did figure out yesterday that I can go from 80 to 115 in just 2 or 3 seconds. It was awsome. Almost like the lambo pulling away from the other cars in the first Cannonball movie.

I love my sharks...
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Old 03-21-2012, 09:21 AM
  #38  
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Steve,
I there a specific VW part number to look for (or models and years)? Or will any of the B5 Climatronic units work?
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Old 03-21-2012, 10:37 AM
  #39  
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3B2 907 044 B is the number I have here and
3B1 907 044 B versions are LHD and usable too

I think an A suffix should also be OK but prefer the B

The trick I think is the casing. If it has black ears and a shallow case - no good
If light ears and a deep case (with made by hella on the label) it should be fine

see the piccies below - left good - right bad

Audi A4 B5 and Porsche 986/996 units should also work as they are also based on the PCF2111T driver chip
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Old 03-21-2012, 10:45 AM
  #40  
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here is a clearer picture from the interweb of the good one
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Old 03-21-2012, 11:04 AM
  #41  
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Thanks Steve. I think this will be part of my flush center console design - will really update the style.
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Old 03-21-2012, 12:51 PM
  #42  
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Just bought a new CLIMAtronic head unit off ebay for $20, score
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Old 03-21-2012, 01:12 PM
  #43  
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Good score Phil. What did you use for the search criteria? The part number?
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Old 03-21-2012, 01:22 PM
  #44  
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How the heck did you find one for 20.00? almost 50.00 is the least expensive left. Guess I will pull the trigger and get one of those.
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Old 03-21-2012, 01:26 PM
  #45  
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It was off the UK site, and I just searched CLIMAtronic and looked for one that has the "white ears" or the Hella sticker as described above.
Wow just checked the US ebay and the cheapest one is like $40. On the UK site they're starting at $2 bids, with 1 day left. The UK site appears to be flooded with used ones.
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