posted similar afew months back.no warning or otherwise, the abd light flickers on and the ehgine cuts out.van will restart and fault either persist or not.very intermittent fault usually when i really need to get places.tried mercedes diagnostics ,nothing showing. replaced battery and pole clips,checked earths maybe sensor faulty but local merc boys no help .lwb van ideal for me but motorway driving stressfull. van has towbar and tacho fitted so towed a lot inearlier life could this have a bearing on problem?