DAS Smart Calculator DAS Smart Calculator can work with Mercedes software before year 2015 only, if work with software after year 2016, it will show error. DAS Smart Calculator Description: This calculator opens special function in DAS program with Smart cars. Functions: 1.Add keys (Key Teach-in)2.Soft touch activation3.Crouse control activation (Tempo mat)4.Steering wheel gearshift activation5.Change…