Please could someone help me with a problem im having. I bought a 98 T4 1.9TD last october. Van runs fine. Just one thing im unsure of really. Since i bought it the oil light would flash once or twice after ignition and only when it is cold, along with this the van would shudder a bit when sitting idle upon startup and exhaust emits a flume of smoke but again only when its cold. once van is warmed up there is no smoke and is fine in idle. Now after this cold spell we had the oil light will flash for several minutes after driving off and battery light stays off before and after ignition. Do i have a big problem on my hands or is it most likely elctrical?