I had the same problum with my S2 8.0B that I bought last month. I had to pull the sole out, but I was adle to save most of the walls and trim by using the care instructions below. Hope this helps.
Tips & Warnings
• For easier stain removal, treat stains as soon as you notice them. The longer dirt, mold, mildew and other contaminants sit on wood, the harder they are to remove.
• Use fine-grade sandpaper to remove persistent or deep stains. Make sure to sand with the grain for natural-looking results.
• Avoid using acid-based cleansers, including products that are specifically advertised as teak cleaners. These products work by stripping off the top layer of wood.
• Do not use steel wool or wire brushes to clean teakwood as the bristles can scratch teak furniture.
• Do not use a high-pressure sprayer hose to rinse teakwood. High water pressure can damage teak.
Difficulty: Moderately Easy
Instructions
Things You'll Need:
• Damp, soft cloth
• Dry, soft cloth
• Mild, oil-based soap
• Soft-bristle brush
• 1/2 capful high-phosphate laundry detergent
• 1 qt. ammonia
• Hose
• Teak oil
• Fine-grade sandpaper (optional)
1. Step 1
Remove loose dirt and other debris from teak by wiping with a slightly damp cloth. Wipe wood dry with a dry cloth.
2. Step 2
Apply a gentle, oil-based soap such as Murphy's Oil Soap to the furniture with a soft-bristle brush. Mild soap should remove most stains. For a deeper clean to remove mold or mildew, mix one qt. of sudsy ammonia and 1/2 capful high phosphate laundry detergent such as Wisk in a five-gallon bucket, and apply to the wood with a soft-bristle brush. The detergent removes dirt, and the ammonia neutralizes bacteria. Let the mixture sit on the wood for 5 to 15 minutes.
3. Step 3
Rinse teak thoroughly but gently with a hose. Let it air dry.
4. Step 4
Apply teak oil to dry, clean teak. Teak oil replenishes teak's natural oils to maintain that wood's smooth, satin-like finish. But be aware that oiled teak wood is more prone to develop mold and mildew, so clean it more often.