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ROVER 45 Oil in Expansion tank WHY?

No oil showing on dip stick but expansion tank of radiator full of engine oil. big problem or what ?? whats happened, anyone an idea of cost to fix
Geejay, January 2012
You will most likely find coolant in the oil when you drain...Don't worry just carry out a oil and filter change :-)

paul, January 2012
Thanks , sounds better than scrapping will check oil cooler and pipes

jaygee, January 2012
Oil cooler/cooler pipes corrosion.when the oil cooler fails, oil enters the cooling system.Have you checked the pipes to the oil cooler.corrosion is a big issue on these models.Its a easy repair.Renew the cooler/pipes,flush the system,drain engine oil fit new oil filter and replenish the oil/coolant.

paul, January 2012
1st thing, You should have oil on dipstick. By not having any oil, you could seize the engine. oil in coolant, could be very serious. You need to get someone to find out why oil has got into it, could be cracked engine block, which could mean new engine.

SD, January 2012
link Click here to see other fixes for Rover 45.