https://www.ifixit.com/Answers/View/740169/intermitin+hard+start+and+running+problem
SOLVED: intermitin hard start and running problem - Mercedes W124 - iFixit
I replaced the fuel filter and it cured the problem. $14.oo at Auto Zone and it took 1/2 hour to replace it. - Mercedes W124
hard startsolvedrunningproblemmercedes