ekstroemtj

Strange. First impression viewing your pics, not the pump itself. Spraying from somewhere else looks like.  No other way IMO to continue to check the water hoses arround or really maybe just the gasket. The pic with your arrows looks for me like the surface of the block where the pump is connected has a different colour. 

****. But worth a try.

i am pretty shure its something small. But...

yes i did the pressure test with the wastegates. I can hear them click. And i cant hear any air disappearing. Holding the pressure

Here are the small water tubes i am talking about. After 10 years they could get bad like mine

Maybe I should check the boot pressure solenoid? That's the part sitting at the firewall I believe

Lewis you had a eye on this?

As per my observation I just have higher rpm if there is a vacuum problem or the electrical system is under pressure.

For example if the batterie is very low the engine is trying to adjust the low load by higher revs. At least in park modus.

You should give it a try. Like you say. 2 Dollars only.

Your AC .,.... What does it mean idle come up to 750 and come back to 500?

Idle increasing the moment when you switch on the AC?

Dont know if you want to do this extra work. Thermostat! 

Did you ever take off the manifold?

i was a bit affraid but Lewis say piece of cake. Actually it was.

It doesnt take so much time.

check the starter.

check the small water lines under there. I am not talking about the main plastic or alu tubes. There are small ones which fail after some time. Extreme heat there make them crack one day and you will loose all water. Happend to me.

Thermostat, mine wasnt in good shape.

i mention this because my shop had my manifold off already 4 or 5 times because of different reason. Instead of thinking a little bit ahead they just do what is necessary. If they would have asked me the very first time, we are here. Should we replace this and that i wouldnt have refused the advice. The parts (thermostat and water lines) arent that expensive. But the work will be .

@Zakowsky thank you mike.

the throttle body gasket is also new :-)

the plastic fitting down to the y pipe i replaced with a pure blue pressure hose. I was cutting out the sensitive connection and replaced it. Very easy to install and very easy to get off. See blue line in the last picture.

by the way, the tube is going to the firewall and is connected in the same way to the intake manifold. This connection i replaced in the same way as you maybe can see in picture no. 8.

@lewis

Thank you Lewis. The interesting thing, before this "oil found" story started I did not have overboost. It started since that day when i started to discover the reason for my oil spray down to the air filter housing. Can't believe that this is the wastegate

Something else I would like to learn. When the high boost at 0.8 bar is built?

When I am accelerating from very low rpm ? Only when throttle completely open? 

Pressure lines: does it matter how long they are? I the original was let's say 30 cm. My replacement line is now 40 cm. Does it change anything within the entire boost system!?

Guys would like to ask your advice.

I can't find the reason for my overboost codes.

I changed almost every single pressure line which is involved. the pressure valve which is connected with pressure lines. DV valves on both sides.

Purge Valve. Connecting hose from

Purge valve. Wire connection from purge valve. All vacuum lines behind the intake manifold. And and and.

But I still can hear a wining whistle sound when the turbos start to work. At higher rpm the whistle is disappearing.

Any idea?

On 07/23/2017 at 4:45 PM, ekstroemtj said:

Something is wrong with my purge valve. I replaced the part long time ago because i had failure codes. 

After replacement the code disappeared and never came back. On top i change the wiring incl. the connector because it was really briggle. But this part is making noises. Ticking. Sounds like a valve is opening/ closing nonstop. 

Found the problem. The tube which is going from the purge valve along the injectors to the firewall had a very major crack. Solved

Great! Thank you!

Please would somebody explain me the routing of of the pressure lines close to the firewall. 

Line 3 & 14 are connected with each other. Coming from the calve. But line 14 has a dead end. Can somebody explain the reason? Thank you

If someone need a membrane for this crankcase ventilation..

They have it on sale now. I bought some just to have it if needed.

Porsche sells just the entire unit which is expensive.

https://vanos-bmw.com/product-category/porsche

Whitout driving? 40 degrees?

Spent some time under the car. Looking for a leak in some boost hose or a loose connection. Everything very tight. Can't find the overboost reason. While I am down I take out the turbo to intercooler hose to drain the oil. I would say 2 tea spoons of oil there after 25.000 km. The rest of the 20 liters I fill in during this time...... Burned:-)

So tools bought, oil bought.

Try to open the fill plug. No way. I need a lift to do it. From terrain level no chance.

Second reason I should not have drive the car. It stay there for 2 hours after. Trans oil temp still 69 degrees. To much for this process.

Dont want to make you worry but a usual replacement means they changed your engine with a new block. But the so called new block is made in the same way like your old one. The entire problem remains. 

Yep, there are some guys out here who know better than me.  I am living in Germany.  People here have almost the same opinion. What I hear from experienced mechanics, some of them even member of the crew which went to 24h LeMans as a racing mechanic, Porsche had to face a major task, when they changed their entire engine technology about 20 years ago. The problems which we see today are still some kind of aftermes. But in total I believe, there are more happy Porsche owners out there than unhappy ones.

I wouldnt say this. 

My first Cayenne also suffered from this "illness "

i even remember the moment when it happens. 

Study these posts. Somewhere close to the end you will find a pretty good explanation what and why it happens:

https://rennlist.com/forums/porsche-cayenne-forum/1001275-pretty-forged-piston-pics-2.html

Sorry. Maybe i got it wrong. My english :-(

can you imagine how much torque/ power lasting on this parts. If there is a small disbalance , i believe you feel it immediately 

Can you make a picture of the disc?

I was hunting for vibrations for monthes. Always believed something with the engine. In the end a failed disc . Changed and solved everything. By my first inspection it looked good but the small cracks you can't see with your eye sometimes.