blew radiator hose just as i'm leaving on a trip........SHYTE

[ALEV8]

Well, when it pours it's raining.........got me a puddle o coolant under the car just as I pull in to send wife and child on a roadtrip. My X5 4.8i is at my mechanic's for oil valve seals. DANG. Now what? Probably just have it towed over to him rather than crawl under and start investigating.....no need. At least hoses are cheap, depending on which one went, if there's a common one that goes. Alu pipe conversion was done at 76k mi. i'll be perusing the coolant system diagram if anyone needs me. Borrowed an A6 Avant for them to enjoy. The back seat sure fit that baby seat better than my CTT!

[bigbuzuki]

Have the Coolant Tees been changed?

[ALEV8]

Not that I know.......BUT I did just look and the coolant smell is at the back of the motor, and the U/L hoses are perfect, no coolant on my underpan up front near the fan.....****TTTTTTTT. Looking for DIY now.

[ALEV8]

http://www.ecstuning.com/Porsche-2004-Cayenne-955-Turbo-Sport_Utility-V8_4.5L/Engine/Cooling/Hoses/ES1441594/

 

Here we go!

[bigbuzuki]

There are 2 coolant Tees that need changing.

http://sonnenporscheoemparts.com/parts/index.cfm?searchText=94810603551&make=Porsche&action=oePartSearch&siteid=215405

http://sonnenporscheoemparts.com/parts/index.cfm?searchText=95510632350&make=Porsche&action=oePartSearch&siteid=215405

[hahnmgh63]

I feel your pain friend. I did my Coolant pipes back in '09~'10 ('06 CTTS) as a preventative when they came out with the Aluminum pipes but this was before we all started hearing about the plastic 'T's.  Well, I knew I would need to do them sometime and just last week one of them started to leak so my manifold is off and I've ordered the parts. I've found that most of the plastic vacuum & vent lines have become hard as rock and one of them already cracked so I'll probably replace them while I'm in there. Mine dripping down off the sides of the transmission. As another preventative, I drained the coolant right when I got home and poured some warm slightly soapy (mild dish detergent) water down the back of engine over the transmission. Heard the stories of the Coolant over time eating the T.C. seals so figured I'd wash off any coolant back there. Didn't want to take a chance. One Coolant Tee completely broken, only some pressure from the hoses pushing it together.

[ALEV8]

Well I did the vacuum lines already.

I emailed my guy at Sonnen to let them know.

Something has to come from Germany......anyone have a detailed DIY?

Also should I change the hose running from the coolant reservoir/overflow? It appears there are three hoses that could be replaced and if I'm back there why not? My role is always been if one goes, the others can't be far behind.

Edited November 29, 2014 by ALEV8

[Pkscheldt]

Definitely sounds like the T's. I swear, all of these parts go at about the same time. The T's are pretty straight forward to replace, just a compete PITA because there's so little room back there. Manifold off squeeze in behind and scrape hands and elbows and replace.

 

Also, your coolant reservoir is the next to go on "the list." they crack and leak after time.

[ALEV8]

I'll order one.

[Pkscheldt]

here is a great DIY tutorial that Voodocat completed a couple of years ago. Spot on: http://www.renntech.org/forums/tutorials/article/265-cayenne-turbo-cooling-t-pipe-replacement/