hello i have a 200tdi and 300tdi, if left for four hours or more the 300 oil light will stay on for 3-4secs at start up, were as the 200 goes off strait away, changed oil and filter, changed oil pressure switch, when warmed up its fine, no engine noises, before i rip the engine apart has anyone else had this issue, have ordered a oil pressure gauge as we dont have one at work (only mercedes main dealer!)
Regards
Boyt