2.3L & 2.6L: Notes
WARNING: This page is about a different car, the 1993 Mercedes-Benz 190E. However, it is still accessible from the selected car via links, so may be relevant.
All 190E models are equipped with EZL electronic ignition system. Ignition timing advance and retard are controlled by the EZL ignition control module. Ignition timing advance can be checked, but not adjusted. Basic ignition timing can be checked for proper adjustment.