Shane Terry

I’m thinking about trading in my 2006 BMW X3 on a 2006 Porsche Cayenne turbo but am having trouble finding specific information about the coolant tube problem. What I would like to know is 1. Where are these tubes located within the motor 2. How much to have it professionally repaired. 3. Is this something that can be a DIY project for someone with VERY LITTLE mechanical experience or is it something that the motor has to be removed to do or some complicated thing like that. The vehicle I’m thinking about purchasing has 105,000 miles, any other info about common problems/quirck on these 955 turbos is appreciated. Also I know they’re proned to driveshaft problems, and that the air suspension maybe a cause for concern as well, but I don’t know how to tell if there’s something wrong with it’s the driveshaft during the test drive. Thank you in advance

Kirill

Coolant pipes on 2006 probably already fixed. Otherwise, it's 500$ in parts and 8 hour labor in a shop.

19psi

Really? Scroll back up and there is a pinned topic that reads Coolant pipes A-Z. There are over 500 posts in that thread alone.
If you search using Google, you'll probably find every aspect discussed a thousand times over on the internet.

It would also be wise to read the other pinned topics to learn about far more important things other than coolant tubes or cardan shafts.

v10rick

There are numerous issues with the 2003-2006 Cayenne that could fill a USB drive.

Do yourself a favor and consider a pre purchase inspection. A local Porsche dealership would be ideal.

If the seller does not cooperate, run don't walk away from the deal.

Wisconsin Joe

Read the sticky on the pipes. All the info you need, including pics of the process.

I really hope you already read the sticky titled "If you are thinking about buying a..."

To answer your questions:

1 - Under the intake manifold, in the "V" of the V-8. The intake & fuel rail both have to come off to get to the pipes.

2 - It's not a job for a first timer, but it's not all that difficult....
Except the coolant "T" on the turbo. THAT little unit is a huge pain in the neck.

The Pelican site has good writeups on the procedure. Lots of pics, needed tools, all that. Look through that and see what you think. Link to their Cayenne stuff:
http://www.pelicanparts.com/techarti...yenne_Tech.htm

The cardan shaft is likely on it's way out if it hasn't been done already. When it goes, it sounds like a "midget with a hammer under the center console". It's a really loud pounding noise.
If it isn't making any noise, you can go under the car and look at the bearing support. It is thin rubber and tears eventually. Mine was starting to tear when I got it (at 103k).

Not sure what you are worrying about the air suspension. It's really robust. The compressor can fail after a while, but instead of paying for a whole new one, it can simply be rebuilt with a seal kit for a fraction of the cost.

Shane Terry

PTEC

Best advice. Take it to someone who knows them well and even a good indy just doesn't see them as much as a dealer. Just make sure the shop goon doesn't get it.

Wisconsin Joe

Don't be so sure a dealer is "ideal".

I was a looooong way from happy with the PPI the local "stealership" did on mine. They missed a bunch of stuff.

Rear glass didn't close right.
Alarm horns were dead (soggy, most likely).
Rear park assist didn't work (solid red, steady beep).
Hatch struts were soft.
PCM had CD stuck in it.

All of this came back on the inspection form as "Pass".

I complained and ended up getting half my money back. Inspection took 2 hrs labor at shop rate, I ended up paying for one hour.