Sunroof Rail Cleaner & Lubricate Tool for Audi Q3 How to Grease your Sunroof in less than 5 minutes! Clean and Grease to Fix Slow or Sticky Motion What kind of sunroof lubricant you are using???? From dealer $250 500gr. They don't sell small quantities. How do you maintain to run smoothly. I used after market silicon greaser, but it Grease and Oil Lubrication for Sunroof Systems DGE Car Lubricating Grease, Lubricant for Sunroof Track and Sliding Glass Doors, Multipurpose Garage Doors Grease, Car Door Abnormal Noise Lubricating Oil Sunroof Lubrication Kit with Genuine Mercedes Factory Track and Pad Grease MercedesSource Kits Product MercedesSource.com