"El. Power Control EPC Visit Workshop" message Car is a 2002 W203 c220cdi estate, 213K miles. I had this fault yesterday, accompanied by a complete shutdown in the fast lane of the A34 yesterday. It was rather frightening. I managed to move left and coast to a layby (over half a mile away) with no brake servo and no power steering. When I stopped and switched off and on again, it started straight away, and appeared to run with no problems. However it did the same twice more, approximately every 20 miles. The error message (El. Power Control EPC Visit Workshop) stayed on for the whole journey, even after stopping and restarting. I got home and changed the fuel filter. However the silly little plastic clip holding the fuel hose tight on the outlet side of the filter disintegrated, but I pushed the pipe in and the car started fairly easily (just a few cranks - I had filled the filter with diesel). The error message was gone. Needless to say I will not use the car until I put on a new fuel hose from the filter to the high pressure pump. I am hoping that I can get this on without disturbing the outlet hose from the high pressure pump (it does seem to be in the way). Given that the old filter had covered over 100K miles (I know I should have changed it, I bought one over 2 years ago but never got round to fitting it), am I being over-optimistic in thinking that I may have solved the problem? I am nervous about taking it out on a long run as a complete power shutdown in busy traffic is not a nice experience. I will report back after I have got the new fuel line fitted and ran for a few journeys.