Determining when to replace the distributor cap and rotor.
E30 distributor cap and rotor replacement.
During routine tune ups which happen every 25 000 miles the distributor cap and rotor are often inspected for.
According to most service manuals replacing the distributor cap and rotor together are recommended on most domestic and imports every 50 000 miles at a minimum.
This how to is a classic bimmer bits original with much credit due to the many members of the community who have helped us learn along the way.
E30 distributor replacement how to credit.