Our C4 UrS cars use a cable system to activate the rear calipers for emergency braking (good luck with that) and as a parking brake. The handle in the middle console is used to activate the rear emergency/parking brake when you pull it up. As you pull up on the handle (Item 1 below), the lever action pulls the threaded rod ahead. The threaded rod pokes through a rubber boot (Item 9 "cup" below). The two emergency brake cables are attached to Item 10 (compensating lever) below.



There is a ratchet system and a release button. Unlike Volkswagen's ebrake cable that can be adjusted from inside the car, the C4 UrS emergency brake adjustment is OUTSIDE the car, above the drive shaft, which is above the exhaust system. The adjustment is via turning the nut (Item 11 above) on the threaded rod. If you live in a rust-prone area, use lots and lots of Liquid Wrench or the like before attempting to move the nut. Otherwise, it will likely just break the rod. (Then you need a new handle assembly (PN 4A0711301M for the UrS4)). Here is what the adjuster looks like with the exhaust and driveshaft removed:


Photo Courtesy of Tornado //S6

Note the Item 12 and 13 clips above that hold the ebrake cables into the grey body bracket.

The cables from there are held be some clips and brackets to the body, then they go through tubes inthe rear cross-member as shown here:


Photo Courtesy of Tornado //S6

and here


The ends of the emergency brake cables have a lead-like ball crimped on to the cable. This fits into the rear caliper, as discussed in this rear brake caliper DIY.