One way to check is use a dental mirror through the oil fill hole. You can see the bolts on the port-side bank camshaft that way. Apparently the bad ones are non-magnetic too - so a small magnet would be useful.

It's very doubtful that many cars in the US have had the "fix" since there hasn't been a lot of talk about it on forums. It's also apparently somewhat rare for the problem to occur - again - since discussion hasn't been widespread and hand-wringing has been limited.

DIY friendly? I wouldn't think so - according to some posts Porsche not only changed the bolts to steel bolts, they also changed the components the bolts go into, so fairly major disassembly of the timing chain assembly will be required to replace them, along with re-timing the cams, etc. Why they didn't simply make new steel replacement bolts is beyond my pay grade, but if I had to guess - the redesign for ongoing engine production probably required the additional parts, so the "fix" is to bring the engine up to current design.

YMMV - you may be a skilled engine rebuilder, so my opinion is only mine.

 

the car is in servie in poznan poland. Will see what the say. I will write.

Same problem in Poland. look
http://porscheclub.pl/forum/2010-pan...t13542-20.html

 

Cool , Hope you get rebuild from the porsche , let me know.

 

waiting ...

 

done. Porsche covered the cost. 100%.

http://porscheclub.pl/forum/post154090.html#p154090

 

I am very pleased to hear Porsche covered the repair for you. Can you tell us what was done to the car? I realize your linked post probably explains that but like most Americans I only speak one language (and it's not Polish).

Thanks and congratulations again!

 

Porsche REfuse to me because my VIN number not include in Recall cars and they refuse to make it on Goodwill too because last 2 Oil Change are not make in Porsche dealer ! Bastards ! This problem is a defective part, and this problem is not related to the oil .

Arknet did you all time service your car in Porsche dealer even changing Oil ?

 

Bought new in June 2011 from dealership, 2011 Cayenne S . This horror of a refuse left me stranded three times in the last 5 years. Now, broken camshaft caused by the failure of the camshaft adjuster bolts.
Car meticulously maintained at the local dealership. Previous failure were catastrophic failure of the PLASTIC coolant pipes and computer failure stranding me 1200 miles from home without possibility to start the engine.

After the repair of the current issue, I will NEVER buy another Porsche and will dissuade all my friends and acquaintances from EVER buying Porsche products. Back to Lexus.

Good bye Porsche junk.

 

How many valves your engine bent ? do you remember ?

 

I think the Lexus comes with a Yanni cd now so you should be all set.

 

As a Porsche enthusiast myself I hear you. Porsche quality is no where near what is use to be in my opinion.

Will Porsche cover the repair as a "goodwill"?

 

You had the coolant pipe failure on the 958 CTT?

 

Add me to the list. 2010 Panamera 4S with 35k miles.
Check engine light came on and it sounded like a jalopy in the engine bay.
I was quoted $4800 worse case scenario.
I told my SA to contact PCNA to see if they would help fix the problem.

 

I have Replace the 2 Camshaft adjusters,
and Now i have misfire cyl. 7 and sometimes the engine is shaking !
i have check the compression and its low on cylinder 7 ! but sometime the engine runs fine sometime is shaking ! that's strange
Now we are not sure is it bent valve or bent Lifters after the Camshaft Problem on the Intake Bank2
Any advice !

 

How many camshaft adjusters are there? Would Porsche just change the bolts out of all of them when they get in there??