- Joined
- Dec 29, 2013
- Messages
- 5,931
- Location
- Kidderminster Worcestershire UK
- Car
- Mercedes W124 260E M103
Hi as i have been jumping up the wrong tree looking at the injectors i have gone from that. Now checking out the R16 trimmer plug .Can some one sort it out please ,what should the Plug be set on N normal fuel 91 octain, or S for super 95 octain . I dont what the octain was the last time i filled up with last time out .I think its the problem with the stumble at start up i was talking about. Car as no cat on it .I find a few conflicting answers just want to be sure.