wife driving her X3 when loud bang heard followed by white smoke from left exhaust,30i auto 2004.I arrived on scene,removed oil filler cap to see yellow gunge,suggesting water mixing with oil,but car used for short journeys last week during cold weather could cause gunge.or head gasket could be leaking,will remove spark plugs tommorow to see if any contamination,do compression test,do coolant sniff. tested crankcase vent valve by checking vaccum at oil filler,seems ok. I wonder if anyone could confirm suspected fuel injector sticking open as causing smoke and slight rough running. any suggestions welcome. will have diagnostics tommorow.
02-01-2009, 06:26 PM
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