Since the ignition timing is constantly monitored and adjusted by the engine management system, manual adjustment of this setting is not provided.
If necessary, the ignition timing can be checked using special equipment connected to the diagnostic connector (DLC) engine management systems, - drive the car to a Mercedes-Benz service station. Violation of the correct settings can only be associated with the failure of any of the components of the control system.
A description of the procedure for checking the correctness of the basic setting of the ignition timing on gasoline models is given in Section Checking the correct setting of the ignition timing on gasoline models.