Very common failure item, which often results in a no spark, or weak spark condition. The failure will normally occur in two cylinders, as the electrical circuitry is divided into three pair.
When replacing this coil, insure that you use a correct VW type wire removal tool, so as to not damage the ignition wires at the spark plug end.
DO NOT YANK ON ANY OF THE WIRES, AS THIS WILL CAUSE INTERNAL BREAKAGE WITHIN THE WIRE, CAUSING A MISFIRE.
Original red wires, manufactured by Bremi, the OEM German supplier to both VW and Audi, and NOT one of the cheap Chinese knock-off sets seen on eBay and other sites.
When removing the wire set, insure that you use a proper tool, as yanking on the wires will destroy them internally.