Audi S4 Problem Report

Audi S4 Various Probelms Caused by Clogged Plenum Tray Drain

(10 reports)

Clogged drains can allow rainwater to accumulate in the plenum tray (at the base of the windshield). The water may leak into the vehicle's interior, brake booster, or electrical components, which can lead to major problems. Our technicians recommend keeping the tray clear of leaves, pine needles, and other debris.

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