CCU fan problem
Thread Starter
Burning Brakes
Joined: Sep 2007
Posts: 851
Likes: 67
From: Orlando
CCU fan problem
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
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
Drifting
Joined: Sep 2006
Posts: 2,413
Likes: 8
From: San Diego, CA
Drifting
Joined: May 2006
Posts: 3,074
Likes: 205
From: Paris
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
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
Last edited by geolab; Sep 3, 2015 at 08:48 AM.
Drifting
Joined: Sep 2006
Posts: 2,413
Likes: 8
From: San Diego, CA
...
search for (denso 173000)
...
then you resolder the wires for the porsche socket
...
-790 Chevrolet
....
FOR THE DEAL OF THE CENTURY they are at $7.95 + shipping here:
http://www.surplustuff.com/misc.html
search for (denso 173000)
...
then you resolder the wires for the porsche socket
...
-790 Chevrolet
....
FOR THE DEAL OF THE CENTURY they are at $7.95 + shipping here:
http://www.surplustuff.com/misc.html
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
Burning Brakes
Joined: Jan 2011
Posts: 1,234
Likes: 18
From: chin on taint
Thanks Geolab!!
See this thread and the links therein as well
https://rennlist.com/forums/964-foru...guar-xj40.html
See this thread and the links therein as well
https://rennlist.com/forums/964-foru...guar-xj40.html
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Rennlist Member
Joined: Jul 2004
Posts: 10,602
Likes: 2,049
From: Dallas, TX
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!
Thread Starter
Burning Brakes
Joined: Sep 2007
Posts: 851
Likes: 67
From: Orlando
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!
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!
Drifting
Joined: Sep 2006
Posts: 2,413
Likes: 8
From: San Diego, CA
See above...sorry
