Fixing BMW E46 330Ci (M54B30) sunroof drain blockage and leaks

[spinecki]

Fixing BMW E46 330Ci (M54B30) sunroof drain blockage and leaks

Common symptoms:

• Water dripping from headliner
• Wet carpets or footwells
• Musty smell in the car

Repair procedure:

• Remove A-pillar trim and sunroof trim
• Locate sunroof drain tubes (front and rear)
• Use compressed air or a flexible wire to clear blockages
• If tubes are damaged, replace them
• Clean sunroof tray and check for proper drainage
• Apply silicone lubricant to sunroof seals

Preventive measures:

• Regularly clean sunroof drains (every 1-2 years)
• Keep sunroof closed during car washes
• Address any leaks promptly to prevent water damage

Note: If you find extensive water damage, consider professional help to prevent mold growth.