Checking and adjusting the ignition timing angle (Mercedes-Benz M-Class W163)

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) of the engine management system - take the car to a Mercedes-Benz service station. Failure to set the correct settings can only be associated with the failure of one of the components of the control system.