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Where does water leakage in a car usually come from?

5 Answers
KiraLynn
07/29/25 4:14am

Water leakage in a car usually comes from the sunroof, or due to poor sealing of the door seals, causing water to enter during car washes or rain. Sunroof leakage generally occurs in two situations: one is when small sand particles or dust clog the sunroof drainage channel, and the other is when the sunroof sealing strip shifts or "lifts up." Below is some relevant information about sealing strips: 1. Introduction: A sealing strip is a product designed to seal something, making it difficult to open, and serves functions such as shock absorption, waterproofing, sound insulation, heat insulation, dust prevention, and fixation. Sealing strips can be made of various materials, including rubber, paper, metal, and plastic. 2. Classification of sealing strips: Sealing strips can be classified based on cross-sectional shape, vulcanization method, application area and purpose, and material used.

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Cooper
08/12/25 4:13pm

From years of experience dealing with car repairs, I've summarized key insights about water leaks in vehicles. The most common culprit is clogged sunroof drainage tubes – rainwater flows along the channels but accumulates and seeps into the headliner or dashboard area when blocked. Aged door seals are another frequent issue, where cracked rubber trim allows water to leak onto floor carpets. Improperly sealed or cracked windshield edges often let water seep in during car washes. When AC system condensation drain tubes clog, water pools under driver/passenger floor mats. An easily overlooked spot is the underbody drain holes; when clogged with mud/leaves, trapped water overflows internally. Untreated leaks cause rust damage to frames and even electrical shorts. My advice: after rain, immediately check for damp spots. Regularly clean sunroof channels (a thin tube blowout suffices). For severe cases like failed door seals, visit certified shops for proper replacement. Prevention is crucial – don't wait until mold appears in upholstery.

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VanBrianna
10/03/25 2:21am

As an ordinary car owner, I've suffered from water leakage issues. Last year during the rainy season, I discovered accumulated water in my car with completely soaked carpets. After investigation, the main cause was clogged sunroof drainage pipes, which allowed rainwater to leak into the cabin. The door seals had also aged, letting car wash water seep through gaps. Improper sealing around windshield corners became apparent during a heavy rainstorm. A clogged AC drain pipe caused condensed water to accumulate under the floor mats, damaging some audio equipment. The floor drain holes were blocked by debris, creating poor drainage that turned the car interior into a small pond. I handled some repairs myself, like unclogging the sunroof pipes to save money, but had to send the car for professional replacement of door seals. This lesson was invaluable – unaddressed water leaks pose significant risks of rust or mold, potentially doubling repair costs. Now I inspect the drainage system monthly to maintain proper flow and prevent future issues.

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Ricky
11/16/25 4:01am

Water leakage threatens driving safety and must be vigilant. Common leakage points include clogged sunroof drains, damaged door seals, and failed windshield seals. Water infiltration can rust the frame, corrode wiring, and increase short-circuit risks. Accumulated water on the floor can cause slipping or odor hazards. I recommend stopping to inspect if leakage is found, simply clearing drain holes to ensure dryness, and preventing minor issues early. Regular maintenance of seals is crucial to reduce accident probability.

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MacCassidy
01/06/26 5:37am

From a DIY enthusiast's perspective, fixing leaks is a piece of cake. Common sources include clogged sunroof drains (clear with wire), worn door seals (replace with new rubber), cracked windshield seals (repair with adhesive), clogged AC drain pipes (disconnect and clean), or blocked floor drain holes (clear debris). Simple tools, quick operation, time-saving and cost-effective. Prevention is key – check after rain and maintain clear pathways. For complex electrical or structural issues, seek professional help.

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