
Door leaks and air conditioning leaks on the passenger side are common leakage points found in this vehicle. Door leaks: Waterproof sealing strips cannot replace the door waterproof membrane. However, applying sealing strips can block most visible water from entering the vehicle. This offers three benefits: first, it protects internal door components; second, it enhances waterproofing effectiveness and extends the waterproof membrane's lifespan; third, it prevents debris from entering through window gaps and clogging drainage holes. Air conditioning leaks: When the Lavida's air conditioning leaks on the passenger side, the cause may be condensation formed when cold air from the evaporator meets warm cabin air. Normally, this produces minimal water. Significant leakage could indicate either a clogged air conditioning drain hole or a detached drain pipe. Prompt cleaning is recommended. Large amounts of water can cause cabin odors, and prolonged exposure may damage wiring and connectors under the floor mats. After resolving the leak, remember to thoroughly dry the passenger compartment.

My cousin's Lavida got water leakage last rainy season, mainly in four areas. The sunroof drain hose joints are prone to disconnect - heavy rain would pour directly down the A-pillar, flooding the carpets enough to raise fish. The door drain holes are another trouble spot; clogged by leaves and mud, water overflows under the floor mats. The trunk leaks most stealthily - when the tail light sealing gasket ages and cracks, water seeps along the lining into the spare tire well. Also, the windshield sealing strips on cars over five years often harden and crack, letting rainwater invade the dashboard at highway speeds. Check these four areas immediately upon detecting leaks, or the body panels will rust through!

Having repaired over a hundred Lavida water leakage faults, I've summarized five major leakage paths. The drainage pipe connector at the rear of the sunroof frame uses plastic clips, which are prone to loosening and disconnection on bumpy roads. The sealant around the wiring harness holes in the engine compartment firewall ages, allowing rainwater to flow along the cables into the cabin during heavy rain. The edges of the four-door waterproof membranes come unglued, revealing water droplets seeping under the door panels during car washes. The rubber sleeve at the rear tailgate wiring harness passage shrinks and deforms after sun exposure, causing water to pour in during heavy storms. The drainage holes at the lower edge of the windshield's rain collection channel get clogged with fallen leaves, causing water to backflow into the air conditioning intake. When addressing these issues, focus on inspecting these areas—clearing blockages and applying sealant can resolve 80% of leakage problems.

Last month, my 2015 Lavida had 3 cm of water accumulation under the front passenger foot mat. After inspection, it was found that the air conditioning drain pipe had been chewed through by a rodent. Common issues with the Lavida also include cracking of the black adhesive on the windshield, especially after car washes in winter when ice forms in the glass gaps and expands the cracks. If your car door is leaking, don’t rush to replace the sealing strip—first check if the drainage holes at the bottom are clogged with mud. The ends of the four sunroof drain pipes are designed inside the wheel arches, and if you’ve applied undercoating, it’s easy to block the pipe openings. Remember to regularly clean fallen leaves from the engine compartment’s water drainage channel, as blockage here can cause water to flow back into the blower motor.


