Our technicians recommend having the constant velocity (CV) boots and CV joints inspected at each service. Servicing torn CV boots early can prevent the need to replace the CV half shaft or CV joint.Google+
Car Problem Reports
Audi S4 Inspect CV Boots and Joints at Each Service
Audi S4 Problem
Drive Train Affected: Automatic Transmission
Average Mileage: 100,500 mi (94,000 mi - 107,000 mi)
Visitor, 2004 Audi S4, Automatic Transmission, 107,000 mi
dealer saw cv boot splitting — driver's side inner. About 5k miles later it split completely.