dfar

Fellas,

If you have not had this done, get it done. I can't believe the difference unless they updated some other engine control software. No lag and this thing takes off like a bat out of hell. I was dissapointed in perfromance until this update.

mudman2

That was my feeling also

MF

Pardon my ignorance, but I'm new to the forum. What is this software upgrade and how do I get it?

GM Austin

I think they may be referring to an undocumented update. If it is the same one I had, it would be service code 24701999.1.0. Is this the one you are talking about Mike?

Mav

dfar, What was that? I am going to pick up my Cayenne S next Wednesday. Is this update only need to be done to certain build? Or all the Cayenne need this update?

mudman2

yes Gary thats it

dfar

Don't know if everyone needs it. I picked mine up in Sept. and had the problem with sluggish on take off, hesitation, and "lurching" while in slow moving traffic. I had the update done after seeing it on this site and it really woke this thing up.

WCS

Does someone have a list of the undocumented service codes?

Mike, you probabily have posted it earlier but I couldn't find the post now.

beelz0308

I just talked to my dealer and requested the undocumented egas update.

When I provided the service code above (24701999.1.0), he said that is an unspecificed service code for general work performed by a tech. Anything that ends in 999 is a generic service code.

Anyone have anything else that's more concrete?

GM Austin

LOL Ha! I'll bet that's true. And we've been quoting it like like it meant something. I guess I can forget about organizing those additional codes for work Mike had done. They probably wouldn't mean anything either.

Try this thread, maybe it will help:
Lurching Thread on Rennteam

WCS

I just came back from a test drive with a regional porsche rep to authorize the cardan shaft vibration fix.

He confirmed that the only documented software fix is egas update, which is equivalent to the throttle adaptation. It has to be programmed inside the DME chip. Is this information correct?

On the side track, I'm getting a new cardan shaft next monday. He had also mentioned that there is a known slight vibration on 80mph unrelated to wheel/tire or the shaft called 'radio vibration'.

dfar

I think he meant radial vibration as in tires that's the closest term I can think off. Have had that before. Switched the tires from front to back and gone.

I don't know of any codes or TSB #'s I just told the service dept. I wanted the egas update and they did it.