sign up fora subscrition to alldata. go to www.alldata.com They have all the codes and put the benz cd to shame. They also have all the latest TSB's and the fixes for your car. It's $25.00 per year for the first car and $15 per car after that. Once your year is up it's only $15 to renew. I highly recommend them and have used them now for years myself. Worth every penny of the subscription price!!