working4it

I thought I would attach this for you...I didn't have time to review it. I will look for it later....

ELECTRICAL COMPONENT 2.pdf

I have attached a link for the codes/descriptions. But I didn't find those codes at first glance...

P1914 Brake Booster Pressure Sensor - Signal Implausible/No Signal P1913 Brake Booster Pressure Sensor - Below Limit P1912 Brake Booster Pressure Sensor - Above Limit

http://www.renntech.org/forums/index.php?app=pcode&do=dme711&max_results=10&sort_key=number&sort_order=asc&search_keywords=&st=70

Worked on my 04tt. Thanks op

I used this process in the past but I believe the latest software update doesn't allow you any more.

I use EBC or Hawk pads. Once you switch you will see a huge difference in brake dust....THe link I submitted earlier with the Tutorial is for an "S"

Personally, I don't believe changing the rotors every pad change is necessary (every other time). Here is a great link with pictures on how to change the pads on Rennlist My link

Changing the pads and rotors are easy...DIY and save the $$. I would suggest replacing the springs/clips and deffinately replace the brake sensors. I usually get my parts from the following: Pelican Parts, SunCoast Parts

I was hoping someone could send me the a diagram location of the coolant temp sensors, and or sensors for the fans.

Here you go...hope this helps

Cooling Sensor.pdf

Thanks Loren for changing it to a .pdf!

The dealer could not find any faults and said they were able to operate the fans. I know it's running hotter than normal and I can see the temp rise when I know the fans SHOULD be kicking on that's why I think I should trace down what is or isn't triggering the fans but more important the high speed fan.

Any updates...?

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I have replaced the main (under the seat ) battery. the one in the back tested fine when I was having battery problems earlier. The thump does happens when braking.

For the clunking noise you here it when coming to stops or going over bumps. Its pretty easy to determine by a visiual inspection on the control arms. I had to replace mine. I attached a great link from Rennlist Clunking Noise

Agree with Odix....

many things can cause your symptoms. Thump sounds like Cardan Shaft or control arms(control arms are usually pretty easy to identify because it usually happens when braking). The other issues seem to me to be a bad battery....

Wow...great wealth of knowledge! The mobil rep I spoke to said the Mobil 1 Synthetic ATF is 100% synthetic...

I found this info:

Mobil 1 used to be made primarily with a group IV base stock which is mandatory for any product to be called synthetic in any country except the US. In the US Group III base stock which is made from purified Pertoleum is all that is required to be called a Sythetic, which is what most Castrol Syntec oil is made from (German Made Syntec is the exception as it is made from GIV stock).

Group III base stocks are very good oils. Castrol GTX from 20 years ago used to be made with Group III base stock and it was the best performing "regular" oil available, but that changed when Syntec was introduced (same product and GTX used to be but different bottle)

Some True Group IV Sythetic oils are Redline (GIV and GV), Royal Purple, Amsoil, German Syntec and others. n not stretching the "Synthetic" nomenclature to include GpII/GpIII even though the ISO dewaxing technology & heavy hydrotreating is done. It still produces fabulous base oil.

Mobil 1 Euro formulation 0W-40 is a true GpIV synthetic product

SWFLHomes- I bet the Diff is much quiter now!

Hahn...I was really surprised how bad my diff oil was. I have 100K on my '04S. Porsche recommends 120K change on the Diff/Trans if I am not mistaken. I am going to do the transmission/filter in the next two weeks and will take pictures as well. BTW how do you like the redline? I have never used it...Used to use Royal Purple but found I like AMSOIL better...

Here is the link to Porsche.com with part list

If you are going to stick with true OEM Differential oil Pelican has it for $57.00 a litre.

Part#000-043-205-30

75w90

http://www.porsche.com/all/media/pdf...SA_KATALOG.pdf

Page 123 and 124

Its realatively easy to do. The top pictures are the front differential(clear gold fluid) and the bottom ones are for the middle transfer case(red).

The transfer case and Transmission use ATF (Esso ATF LT 71141) Esso is now apart of Mobil and Mobil 1 Sythetic now meets 71141 spec. After several emails directly with mobil rep he finally admitted to me "because of licensing agreements we are not allowed to say recommended" but can say meets the 71141 spec(which it does on the bottle). So i felt safe using it. For the Front and Rear differential I also used Mobil 1 LS 75w-90 (which also meets the LSD transmissions) I would have used AMSOIL but didn't want to wait as I was fixing the brake sensor. Per Porsche website the Differential uses Burmah SAF AG4 75w-90. On all 3 I flushed it out by pumping a few extra squirts and letting it drain out. All 3 are much quieter now. I am planning on doing the transmission in the next couple of weeks and will take pictures as I go..

Front Diff-about 1 quart

Transfer Case-about 3/4 of a quart

Rear Diff-about 1 1/2 quarts

Here is the TSB

I originally posted this on rennlist.com but thought I would post it here as well...

Was really easy to do other than trying to get at the fill plug for the front Diff. My socket wouldn't fit and I happen to have the correct allen wrench. Huge difference in sound...

Rennlist thread..

Changed the Differential Oil and Transfer Case Oil Fluid

okay...Just for the idiots (mainly myself)... I am lazy and haven't looked under the car yet...The gear box that is connected to the transmission (Center Differential/transfer case)does it have seperate drain/fill or does it take the atf fluid from the transmission? The reason I ask is am going to change all the fluids (except the transmission) and need to know what fluids to get.

Thanks Loren! You always respond! Seems a little crazy to charge $75+ for a litre....I was hoping to flush it out as well but that price is Since porsche recommends mobil 1 you would think they would offer a suitable alternative.

My 04 S has 100,000 and I want to change the Differential fluid but does anyone know the appropriate fluid other than the Burmah SAF AG4? Mobile 1 75W90 or Castrol 85w-140?

I thought some of you may be interested in the wiring instructions....

Enjoy!

Cayenne Trailer Hitch and Wiring.pdf

I just posted it to the "Documents Menu" in all downloads

Perhaps the PDF can go into the maintenance section where I think downloads are only available to contributing members.

Hi all. Sorry to bother, but was the .pdf with instructions for Cayenne ('04) fuel pump replacement ever created or made available here? I could sure use it. Thanks!

Morning!...I just did mine not to long ago ('04 S drivers side)I have the .pdf so just send me your email address and I will send it to you. I tried to upload it but the file is to big.