i have a 1999 s 420 with 80052 miles on the odometer. the check engine light came on at approimately 80000 miles on the odometer. a friend suggested i take the negitive battery cable loose an reconect to see if this would cause the light to go out. i did this an the light was out for about the next 50 miles an now the light is back on. i purchased the car from the original owner on january 26 2006 with 71000 miles on the odometer. he provited me with the service records when he owned the car. when reviewing these i find he replaced the left and right oxygen sensors after the catalyst at 62744 miles on the odometer because the check engine light had come on. sugestion are appreciated. will i do damage driving the car short distances? thank you