?SERVICE ACTION: N63R ENGINE - CHECK AND REPLACE OIL FEED LINES AND THE MAP THERMOSTAT ELECTRICAL CONNECTOR. This bulletin describes the procedures to inspect and if necessary replace the following components: * Turbo charger oil feed lines (leaking) * Map thermostat and electrical harness (corrosion) Also, make sure that Service Bulletin B12 24 18 Service Action: Program Control Units, is completed when performing this Service Action.
