My Disco 300 TDI recently started puffing out smoke under acceleration but only when the engine was warm. I thought perhaps the airfilter was becoming blocked. Then the engine lost power almost completely while intermittently producing large amounts of black smoke. I managed to get home. Next day it started immediately but smoked and lost power after half a mile or so. I managed to limp to my local independent Landrover workshop. His conclusion is that there is something wrong with the Exhaust Gas Recirculation system, either a valve, solenoid or its ECU. I didn't even know a 300 TDI had an EGR system. The EGR valve is being replaced tomorrow but if this does not fix the problem I don't fancy having to replace the rest of the system piece by piece. Does anyone know if the EGR can safely be disconnected and what the effects will be if it is.
-- Keith (London, UK) Land Rover Discovery 300TDI