My friend in Ukraine has a 2001 C 200, sport coupe, Kompressor W 203. After running for 10-15 minutes the ABS light comes on and a "yellow spiral" light. The car loses motor power. Diagnostic normal.
After running for 10-15 minutes the car loses power to the motor, makes a noticeably different sound and the ABS light and a "yellow spiral" light come on. When they take it in for a diagnostic test, the test result does not reveal any problem.