Thread: 3.0D black oil at top of coolant expansion tank and radiator UPDATED
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Old 04-01-2018, 04:16 PM
Ohsoslow Ohsoslow is offline
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Depending on the year, they have a filter in the rocker cover to catch oil vapour from crankcase etc. have you checked/replaced that?
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2004 X5 3.0d
2010 X5 40d

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