How are you going to light the fuel? With a match?

Someone said that it's best to rely on your MB dealer selling you the right plugs. NO!

My MB dealer sold me 2 lots of resistor plugs for a total of 200 Euro before I took the matter in hand and put in non-resistor Bosch plugs. Result: more even idling and eliminated misfire. This on a 1991 M104.980 engine.

I now get Beru or NGK for about 2 Euro each and all is well. MB in my neck of the woods (France) can be utterly clueless on older car issues.

It is most important that all HT components on my engine (and similar) are of the highest quality and in perfect condition. For me, this means MB for everything apart from plugs. Failing that, Beru or Bosch caps and rotors. NOTHING else, in my opinion.

The best to all.

RayH