Davet18

I changed the two #6 seals but it didn't fix the seepage.  It is an easy change if you want to do it. As I recall it is very tight to get the bolts out but doable.   From my research it seems that the V8 engines seep oil from a few places which I could never track down.  I just lived with it until I sold it.  Unfortunately I loved the vehicle but at around 110K. it seem I was spending more on parts that it was worth.

After a 3 hour highway drive, stopped at a traffic light, vehicle jerked while stopping and ABS warning light came on.  Pulled into a gas station and filled up.  After filling the sequence is as follows:

Started the vehicle

• ABS light came on immediately
• Speedometer floated up to 85 mph then slowly returned to 0
• Put the vehicle in reverse then drive and it would not move

• Shut off vehicle and waited a minute

Started the vehicle

• No ABS light
• Speedometer registered 0
• Put vehicle in reverse backed out and drove away normally.

Two days later drove 3 hours back home hoping it would make it. No problems and no ABS warning light.  Analyzed with Durametric, Only Error Code 1324 Transfer Box Control Unit

Recent repair: I had Error Code 2042 and no 4 wheel drive in November so I replaced the Transfer Case Controller and servo motor.  Code Cleared and 4 wheel drive works fine.

Only other issue is I occasionally have sluggish or hard steering.  I’m thinking that I may have a failing wheel speed sensor because ABS is dependent on wheel speed sensor input, speedometer is driven off the ABS module, and variable steering is also based on vehicle speed, which I think is driven off either the vehicle speedometer or ABS.  Seems that the issues are all tied back to vehicle speed and wheel speed sensors.

Does anyone know if an intermittent wheel speed sensor fault would be stored in ABS memory and detectable by Durametrics?  Any suggestions for analyzing the problem would be appreciated.

Thanks for the reply. 

Loren, thanks for the quick reply.  One other time I had an issue that I could not find information on a code, Durametric transposed the numbers.  By chance can your list of codes be sorted by system?  If so can you send or post the tiptronic shifter codes? If not I won't worry about it.

While checking another issue I checked all systems for error codes and found Error Code 1749- Tiptronic switch on steering wheel down under Steering Wheel Electronics using Durametric Software.  Steering wheel shift switches are working fine.  I've tried to erase the code to see if it comes back, but it doesn't erase. I have researched it and don’t seem to find anyone that has posted about this error code.  Anyone seen this issue/error code before or have any recommendations?

Thanks in advance for any recommendations.

I had the same problem on my 09 Cayenne S when the vehicle was still under warranty.  It would randomly activate the alarm when I would lock the doors.  According to the dealer they replace the alarm control module.  It took two visits to the dealer for them to figure it out but once they changed the control module the problem went away.

I have been getting oil seepage around my Oil Cooler Heat Exchanger which is getting worse.  From  the manual I see there are two seals between the heat exchanger and the oil pan that could be causing the problem.  I searched the forum and don't see any threads on the topic.  Has anyone else had leakage around the oil cooler heat exchanger and if so what was the fix?  Before I replaced the seals, I thought I would put it out there for input.

Dave T

The intake socket does not need to be replaced unless you damage it taking it out.

I am not sure of your numbers but the parts numbers for the parts I replaced were as follows;

948-106-125-01 Thermostat   $72.14 List Price  

948-106-533-00  Seal $6.78 List Price

948-106-124-02  Seal  $6.12 List price

948-106-707-00 O ring Seal $11.12 List price

Hope this helps

I removed the drain plug easily by tapping a triple square into the torx recess. No drilling.  Since the aluminum is so soft a little gently tapping and the triple square sets itself securely.  Not the best use of a triple square bit but it worked.

Thanks I will be working on it next week. 

Does anyone have experience on how to remove a stripped drain plug?  The T50 torx head is stripped not the treads.  I assume drill and screw extractor is the way but I thought I would ask.  I knew the torx head wasn't in good shape and should have changed it last time.  Advice to all the aluminum strips easily!

Glad I could help. I know I have saved thousands of dollars with the help received from other on this site.

You code might actually be a 0346 fault. I had a 5504 code and couldn't find anything about it and emailed durametrics and they answered very quickly that it was actually 0455 fault. Seems that the durametric programing might be transposing the codes.

0346 has to do with the cam sensor positioners. "P0346 Camshaft Position Sensor, Bank 2 - Signal Implausible Possible cause of fault - Camshaft position sensor, bank 2 faulty" from a post by Lauren http://www.renntech.org/forums/topic/31110-2007-cayenne-turbo-erratic-idle-cel/?hl=p0346#entry191845

I don't know where the sensor positioner is but you might have bumped a wire or connector. If not a loose wire. You might be able to trade bank 1 and 2 sensors and see if the fault code moves. Then it would be the position sensor.

Hope this helps

I don't know if it is the same for the 08 but the parts sound the same so I think it will be very similar. I did not drain the whole system. I drained about a gallon and a half into a clean bucket and reused it. I just used a water soluble lubricant. Nothing special but it was water soluable. I would stay away from anything that is petroleum based as some petroleum based lubricants can damage rubber type seals.

The two biggest problems are getting the thermostat out and then putting the intake manifold back in and getting the vacuum hoses back in place expecially the one on the back of the left side of the manifold. Removing the thermostat takes some very hard prying.

From your parts list you have an intake socket. If that is, what I call, the rubber tube between the water pump and the thermostate I did not replace mine. I resued the old one and have not had any problems. If you are not reusing the rubber tube then you may take a thin object and insert it arount the outside of the tube to separate if form the side walls. The post above this indicates that that is what he did because he could not get it out.

Good luck

Glad the write up helped. The vacuum hoses are a challenge. I had a cracked vacuum hose which I took a while to diagnose.

It has been two and a half months and no faults codes on my 09 cayenne so I think it is good to go.

As you said this is a DIY. Strictly unbolting remove, replace and bolting back together. It can easily be done in 3hours the second time so I don't know how the dealer justifies around 7 hours to do the thermostat change out.

Apparently the thermostat is a common problem. I used the durametric software to determined the code P8121. I brought it into the local dealer because I have an extended warranty. Dealer said the thermostat needed to be replaced but wasn't covered so I changed the thermostat myself. I don't know if they did any other tests or because it is a common problem they just knew it was the thermostat.

Thermostat cost around $50 from Sunset Porsche. The sensors are a little harder to get at. I think they are on the back of the thermostat housing and the fuel manifold needs to be removed.

Sorry for the late response.

FYI I did the thermostat replacement last weekend and posted a DIY today. It is a straight forward project which takes between 4 and 5 hours. Cost for parts is around $70 from Sunset Porsche.

Hope the DIY helps anyone who is going to do the thermostat replacement.

I traced all of the vacuum hoses that I removed/moved during the thermostat replacement and found one in the back that was cracked. I replaced it tonight.

Thanks

FYI, I talked to Durametrics and the software is reversing the code. It should be a code 0455: Evaporative emission system leak detected. They will correct the software on the next update.

The check engine light came on again and durametrics showed fault code 5504 again, no signal/communications. Module identification is "Siemens Digital Motor Electronics SDI4". I drove the Cayenne for a week after I reset the fault code before the light came on. Can you provide any guidance where the hood latch switch is located? Maybe something got loose or moved when I leaned in working on the thermostat.

Yes it was 5504 but it showed up under the engine section on Durametrics. I reset it and will see. If it is a lid/trunk or door problem I am not worried about it. I was concerned because of the thermostat changeout.

As always thanks for your help. :cheers:

I just did a thermostat change out on my 09 Cayenne s and I am getting an error code 5504 no signal/communications? I cannot find this code anywhere?

Anyone have any ideas?

I have the same 2181 code and took my 2009 Cayenne S to the dealer for repair under aftermarket warranty. Found out warranty doesn't cover the repair. Dealer quoted $1300. Can you provide a description of how to get at the waterpump to change the thermostat? I do all my own work on my 911 and have changed water pumps on other vehicles but not on this one.

Any advice on the repair and any other parts necessary to do the repair (i.e. gaskets etc) would be appreciated.

Thanks in advance.

Dave T

Loren

Thanks for the great DIY and links. I am traveling and last night the headlights were dim and the key wasn't working properly. I got to my destination holding the bright light switch on. When I have a problem with my 99 911, I come to this site and find the answer. Napa parts for the switch, purchase a few tools, and an hour and a half later the problem is fixed!!! :thumbup:

Fantastic website and always worth an annual donation. I have owned my 99 for 6 years and have "never" had to take it to the dealer for repairs!!

Thanks again.