dr914

Recently a 2009 Cayenne came into our shop not starting, it would display faulty ignition lock along with abs lights etc. The previous shop suggested that they purchase an expensive electronic ignition lock etc.
Upon our investigation, we found the car flooded with water under the drivers carpet. The culprit was the air conditioning evaporator drains clogged, flooding the interior and the wiring harness under the seat.
The repair was to remove the carpeting, open the harness, and replace and re solder the original soldered and heat shrink wires that had turned green from corrosion. No parts, a few materials and a reset of codes had them on their way!

John Welch.

That's an awesome find. The steering lock thing is ridiculously expensive and it wouldn't have solved the issue.

Nice job.

Too bad you're nowhere near VT or I would bring my pig by.

dr914

John I would LOVE to live in Vermont than here in Georgia! Originally from Connecticut, when I moved down here when my Dad was transferred, I could not believe how many pigs were here, along with real Boars. Even I quickly became bored.

wkearney99

As someone that's owned boats, if there's enough corrosion to have turn the wires green, that wire has other issues farther up under the insulation. Just resoldering it is not something I'd consider a long-term repair. It'll probably be enough, but it'd definitely be something to keep in mind as future electrical gremlins reappear.

dr914

believe it or not, the wires in question were just soldered by the factory to begin with and then heat shrink applied. We repaired the factory configuration

s4for5

How is this a tech tip?
The clogged drain issue has been discussed for years, nothing new and exciting here.
A worthwhile post would be to discuss with pictures the methods to prevent this from happening as to how we can clean these clogged drains correctly.

dr914

it is a tech tip because most with that warning would figure that the ignition module failed NOT that the drains had caused a wiring corrosion problem.
Let's keep this open for everyone to comment without putting people down for adding input, man.

MountainStone

Thanks for the worthwhile tech tip. Please keep posting as you encounter good info like this at your shop.

dr914

thank you I certainly will keep posting.
I was so delighted back then when Porsche finally introduced a Porsche family car. Before that time we were always having to purchase Mercedes MLs for the family car. Now we can truly say that there is a Porsche for the whole family, with the Boxsters, Cayennes, Panameras, and 911s.

s4for5

Thanks for posting
After you patched up the wires did you repair the actual cause? May I ask how?
A detailed description on the repair of the root cause would be greatly appreciated and of benefit to many others.
Thanks

wkearney99

The man spent time to fix a non-obvious problem for a customer, one another shop was wrong about, and has willingly shared that with us. And you give him grief about it, why?

If you're going to chastise the guy, at least do something useful like linking to one of the relevant threads:

https://rennlist.com/forums/porsche-...l#post13710471

s4for5