Cayenne GTS (9PA) V8-4.8L (2008)
20. Remove rubber sleeve from the bulkhead -arrow-.
21. Unclip wire harness in plenum panel at the retaining clips -arrows-.
22. Remove rubber sleeve -31- on the left firewall.
22.1. Remove rubber sleeve on the left firewall in direction of the interior -arrow- and remove the front left wire harness.
23. Unclip wire harness with the retaining clips on the upper side member -arrow-.
24. Loosen ground strap for right firewall -32-.
24.1. Screw off fastening nut on the right firewall and remove ground strap together with the twist lock from the threaded bolt -arrow-.