I had to replace left front body acceleration sensor on the Cayenne today. It's located at the top of the wheel well so you pull the liner and it's a 3 minute job to replace from there. I have to call the dealership and get a quote on Monday just to see what they would charge to do it.
Anyway, at the back of well there are some wires and tubes in what looked like a small depression and saw some rust and some dirt, blew it out with air. It could have been a cutting room floor clipping from Dune 2 coming out soon. It wasn't a depression, it's a maybe 3/4" deep tray what was filled with wet sand.
And rust.
This is the exact same "tray" as in the nose of G-body 911s that collects sand and water and rusts out.
I honestly don't understand how an engineer can essentially desingn a trough, in a wheel well, and not know that it will fill with dirt and debris and water and snow and salt and then rust.
Going to media blast it out over Labor Day and epoxy prime and then get the Wurth schutz gun out.
Not the best pics. Also figured out why I couldn't reset my brake light, last pic after removing some electrical tape. Cayennes are definitely following the 944/928 3rd, 4th owner syndrome from the 00's through a few years ago.
So if you have a Cayenne, you may want to pull your wheel liners and blow these areas out, even in warm climates.
