68 250S, 91 300se, 98 SL500, 450SEL 6.9, 14 CLS550 Past MB's; 300SD, 300E, 300TE, 190E, ML420
ABS has nothing to do with ignition. REcap: replace cap and rotor with genuine Bosch parts. Report back if there is still a problem later. *you are correct that many MB parts counters dont know anything.