I had a gremlin in my 2009 C2S........ the ignition switches were modified around this time so they don't work the same way as the old ones.
When I turn off the car, I stopped getting the clunk... where the steering wheel lock drops.... it was intermittent, then it just stopped the clunk. Everything else seemed OK... I never tested the electrical draw but was parking my car in sub-zero weather outdoors in a garage and never had a dead battery.
So, I swapped out the ignition switch.... a real odd looking thing that had a coil of fine copper around the key cylinder (yes I took it apart). My amateur take on this is that the system is actually a keyless system that uses the key to preserve the Porsche experience. I think a screwdriver in there would have started the car as long as the key was close by (just an assumption, never tested it).
Did this fix the problem? Nope. Wasted my money. Over time, it just stopped doing this and it started working again. I don;t know why. It was not ambient temperature related as it happened in my warm garage. I was going to take it to a dealer but I was so busy just couldn't do it.
You are the first person I have heard who has the no "clunk" issue. Congrats. Although if I am reading your post correctly, your radio and other stuff stays on. I can use the key lock button and steering wheel would clunk.
[
rennlist.com]
Peace
Bruce in Philly
Edited 1 time(s). Last edit at 02/01/2017 11:49AM by Bruce In Philly (2000 S Boxster, now '09 C2S).
(
view changes)