gbratk

 

I had totally the same problem.

So I changed all 8 coils and plugs, MAF sensors, pre-cat O2 sensors,booth fuel pumps, I also cleaned and reset throttle body, and did smoke vacuum leak test, but there was no leaks. All that and Idle drop and rough idle was still there. However, in the end I changed hydraulic engine mounts, and believe it or not, all roughness is gone, and cars is super smooth again. It's PITA job to change it but it's doable and worth every penny. 

 

gbratk, can you hit the highlights on the procedure you went through to DIY your motor mounts?  What did you have to remove? Any tips?

 

Thanks

 

Here is another DIY:

http://rennlist.com/forums/porsche-cayenne-forum/913742-replacing-the-mounts.html

Hope it hepls.

Now I have GLF transmission and I want to change it with KMM with only 5000km.

Hi,

I have to change transmission in my Cayenne S, and I need to know I transmission from 2008 Cayenne S fits to my car? I know it will be jut bolt on, but I wondering if there is any major software difference in TCM. I already have new updated TCM so I dont need pressure switches in valve body any more. If I'm right, there is no internal difference in transmission, so I believe it should work. I can also get TCM from this transmission, but I believe it would be problem pairing it with ECM (dme engine control module).

I kindly asking for any help.

Thank you

I had totally the same problem.

So I changed all 8 coils and plugs, MAF sensors, pre-cat O2 sensors,booth fuel pumps, I also cleaned and reset throttle body, and did smoke vacuum leak test, but there was no leaks. All that and Idle drop and rough idle was still there. However, in the end I changed hydraulic engine mounts, and believe it or not, all roughness is gone, and cars is super smooth again. It's PITA job to change it but it's doable and worth every penny. 

You have to join together pins 3 and 7 on OBD connector.

Also do you know if I can use the vagcom software and cable to program my cluster?

It is basically the same cluster like touaregs, so you'll be able to code it with VAG-COM, just use instructions for touareg

Will i still be able to use it on VW cars?

Yes

I you want to use VAG-COM cable on Cayenne, you have to open cable and solder together pins 3 and 7 on OBD connector.

First thing I would do, are motor mounts. They are hydraulic and they collapse with age.

You can also do it with VAG-COM cable. But if your cayenne is pre 2006, cable need some easy solder modifications.

Yeah i read that post when i was researching it. Not to disrespect anyone but i dont believe posts from other manufacturers saying another manufacturers stuff is junk when there is no evidence or posts from other members backing it up. but time will tell.

Totally agree.

That is great to hear!

I was also thinking about that when I had valve body problems. But I was afraid to do that, because of this 'REVMAX' post on Touareg forum:

I can GUARANTEE that it will NOT fix the problem and that no valve body rebuilding company will accept your core... That kit should be off the market, it destroys the linear solenoid valves...

However if this kit repaired your valve body, it can also help to others...

Keep us posted and post some pictures.

I had almost the same sound, just little bit more high pitched. Changing drive shaft bearing is the cheapest thing to change, and I would say it's worth to try.

Hi,

I have problems with PCM 2.0 in my 04 CS.

I get message 'System error: Unknown, Unknown, Unknown...' every time I start the car.

When I press confirm, message goes away. The whole system (radio, navi, phone, cd, cd charger, trip computer...) is working without any problems. There is just that annoying message, which making me nervous every time I sit in the car...

Does anyone know what could be problem?

Here is picture which I borrowed in 997 forum.

Thank you.

I also have exactly the same problem. Please let us know if you find out where the problem is.

Thank you

Can you share some pictures, how do they look on the car.

Thanks

If that happens at cold starts, I'm almost sure you hear secondary air injection pumps.

To be sure, take your cluster out, and you'll see right away which one is. I hope your old one is RB8 also.

Well if your car is 2004, than you have RB4, cluster. In that case this will not work.

I should be written somewhere in instrument cluster. If its RB4, it has Gateway built in the instrument cluster, and if its RB8 there is no gateway in instrument cluster, but it's under passenger glow box. So if you bought the right one there will be no problem,you'll just have to code options with piwis, durematric or vag-com, But if you where not bought the right one, it will not work.

I believe the RB4 cluster where changed with RB8 in 2005 models, but I'm not sure about that.

Which clusters you have RB4 or RB8?

You can program day lights with VAG-COM or Durametric. If you have either of these, I can give you help how to do it.

Lift up plastic on top of the throttle body, and you'll see, hear, and feel ticking of that valve if you put hand on it.

I think it could be purge valve.

This should be useful:

http://www.inkilino.es/Porsche_Cayenne_02-06/DOOR%20REAR%20LOCKING%20SYSTEM.pdf

http://www.inkilino.es/Porsche_Cayenne_02-06/DOOR%20FRONT%20LOCKING%20SYSTEM.pdf