2009 Audi S4 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2009 Audi S4
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2009 Audi S4 ProblemsCheck Engine Light and/or Engine Overheating Due to Failed Thermostat
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.