The 2006 Mercedes-Benz SLK 350 requires either MB-Approval 325.0 (blue coolant) or Zerex Original Formula Green if mixing with another brand. Use a 50% coolant and 50% distilled water mixture
- Coolant capacity (with heater): 8.5 L (9 quart)
- Replacement interval: 2 years or 20,000 miles (whichever comes first)
