I have just ordered my 3rd cap and rotor for my 1988 300E in the last 15,000 miles. 5000 miles doesn't seem to be a long time for a cap and rotor to last. The cap has a lot of black material on each of the contacts and the car is running rough. The large round brown plate with the o-ring that sits behind the rotor is destroyed, I have a new one but cannot get the piece the rotor attaches to off. Does it require a special puller? Is the fact that the brown disc is "missing" causing my cap longevity challenge? Do I need a new distributor? How could I test that?
Whew, got all the questions out. Any and all advice greatly appreciated.
'88 300E 265K
'91 300TE 155K