techman1

Hello All!

Lately the CCU fan has been stopping I popped the CCU out, dusted it, checked for free spin, seemed to work. A few days later, not working. This time I left the CCU a little loose, and pulled it out when the fan was not spinning.(Tip, use a piece of tissue paper placed over the fan hole to diagnose a fan issue)

When I pulled the CCU out, the fan was vibrating/pulsing in place, not spinning.

Tore or anyone, is there a replacement fan out there? What is the volt going to the fan, 12 v?

Thanks for any help!

O'Neal

ToreB

The fan bearings wears and the motor magnets weakens. New fan needed, Porsche part # 96465914800
Cheers,
Tore

kjr914

Tore,
Any idea of a source for the fan that isn't $350+ (from some web searching). I think mine might be occasionally doing the same. Thanks!

ToreB

Nope, not yet.
As of now, the original part is the only replacement.
Cheers,
Tore

geolab

The same fan is used on other makes

they pop up on ebay from time to time

there are three right now for sale
search for (denso 173000)
the mercedes one is 173000-0841
make sure you check the picture and it says 12v on the fan, because on some jaguars, it is 13.5v

then you resolder the wires for the porsche socket

-0410 Porsche
-0790 Chevrolet
-0691 Audi A8 1994-98
-0860 Honda CR-V
-0741 LandRover Discovery
-0770 Jaguar XJ8 1998-03
-0632 Chrysler 300M, Intrepid, Concorde
-0841 Mercedes

FOR THE DEAL OF THE CENTURY they are at $7.95 + shipping here:

http://www.surplustuff.com/misc.html

this way you could afford a membership, as I did

kjr914

Geo! AWESOME! Thanks for that info. I'll have to order a couple to hit the minimum of that site $15, but at that savings, no matter.

ToreB, the last link in your signature appears to be broken... "Safari can't find the server"
http://www.porschehvac.bergvill.com
Maybe it should be this?:
http://www.bergvillfx.com/porschehvac2.html

Silvertarga

Thanks Geolab!!

See this thread and the links therein as well
https://rennlist.com/forums/964-foru...guar-xj40.html

oldman40

Kjr,

If this part works, I'd be happy to buy your extra one.

nine9six

Geo, you're awesome!

Soooo happy to see you back on the board. You were certainly missed!

geolab

pp000830

I understand the theory and function of the ccu fan, however in practice does it really do anything as the entire concept of the ccu controller dynamically regulating cabin temps is iffy at best. I find myself just using the blower speed **** to do this. It's actual function seems to be to collect dust and log OBD Codes for our entertainment!

techman1

Yep, mine works. At least it di before the fan started its glitch. Maybe that is your problem, and you have overcome it with manual control. Put a piece of tissue paper over the intake when running, see if it sticks.

When you first crank up the car, the ccu does id the internal temp correctly. But as the air is cooled or heated, samples are not pulled in past the sensor. It continues to sample the stale air in the tube. This is compounded with the AC switch pushed in, as the light in the button will quickly heat that general area, and after a few minutes operation, the CCU thinks the cabin is warmer than it really is!

techman1

Still no reply from surplustuff.com . Any actually find and purchase the fan?

Silvertarga

Email was returned as undeliverable by my server, you might try sending a message to them through paypal (and send one cent payment along with it)

kjr914

Yep, I got the same non-response, but did not get a bounced email. Website looked pretty old school so I was wondering if it was a zombie site... Seems to be, unless they just won't mess with small quantities....but we should get a response to that effect at least.

See above...sorry