I purchased a maintainence policy from the dealer that covers ALL maintainence for the first 36 months/36,000 miles. Cost was $274.00. The way that I figure it, at the rate that I drive, 1.5 oil changes a year X 3 years = $450.00. A good deal already and the best part is, the policy is also honored at Mercedes dealers. I think I will have my oil changed at Mercedes rather than Sears.