05/26/2026
🌧️ After those heavy rains, If your BMW, Audi, or Mercedes (or otherwise) suddenly smells musty, has foggy windows, wet carpets, or mystery water inside… clogged drain lines may be the culprit.
European vehicles use sunroof and body drain systems to channel water away from the cabin. Over time, leaves, pollen, and debris can clog those drains — causing water to back up into your interior, electronics, headliner, or floorboards.
⚠️ Common signs:
• Damp carpets or trunk area
• Water stains on the headliner
• Foggy windows that won’t clear
• Musty/mildew smell
• Electrical gremlins after rain
Ignoring it can lead to mold, corrosion, and expensive module damage.
At Bavarian Motorsport in Kennett Square, we inspect and clear drain lines properly before small leaks become major repairs.
If your car took on water after the recent storms, now’s the time to get it checked. 💧🚗