Rainwater May Accumulate in Plenum Tray Due to Clogged Drains on Volkswagen Passat

Submitted by Vehicle Owner · May 29, 2025
Published by RepairPal

Problem overview

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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