I've run Bosch plugs in All my MB's w/ excellent results. It is true, the M117/116's hate platinum plugs.. In my 560's the W9DCO's gapped at 42 gives me excellent results.
All the cars I work on I've installed Bosch as well, no problems as of yet and I can only imagine how many 100's of plugs that is!
Jonathan
All the cars I work on I've installed Bosch as well, no problems as of yet and I can only imagine how many 100's of plugs that is!
Jonathan