How to fix soft top leaks in the 1999 Mazda MX-5 Miata (NB)?

Inspect the Soft Top

• Check for visible tears or holes in the soft top material. Pay special attention to seams, as these are common areas for leaks.
• Inspect the rubber seals around the windows and where the soft top meets the windshield frame. Worn or cracked seals can be a source of leaks.

Clean the Drainage System

• Locate the drainage holes near the soft top. These are typically found near the rear quarter panels of the car.
• Clear any debris from the drainage holes using a small brush or compressed air.
• Flush the drainage system with water to ensure it is not clogged. You can use a garden hose for this purpose.

Seal Small Tears and Holes

• Use a vinyl repair kit to seal any small tears or holes in the soft top material. Follow the manufacturer's instructions for best results.
• If the tear is larger or located along a seam, consider using a patch designed specifically for convertible tops.

Replace Worn Seals

• Purchase replacement seals from a Mazda dealer or a reputable auto parts store. Make sure the seals are designed for the 1999 Mazda MX-5 Miata (NB).
• Remove the old seals carefully to avoid damaging the surrounding material.
• Install the new seals, ensuring they are properly aligned and seated to create a tight seal.

Adjust the Latches

• Check the tension of the latches that secure the soft top to the windshield frame.
• If the latches are too loose, they may not create a tight seal, leading to leaks. Adjust the latches according to the owner's manual to ensure a snug fit.

Apply Water Repellent

• Use a water repellent specifically designed for convertible tops to enhance the water resistance of the soft top material.
• Apply the repellent evenly over the entire surface of the soft top, following the manufacturer's instructions.

Test for Leaks

• Close the soft top and spray the car with water using a garden hose.
• Check the interior for signs of water infiltration to identify any remaining leaks.
• Address any persistent leaks by repeating the appropriate steps above or consulting a professional.