Burning oil - Heavy blue smoke - Please help

[b11nnl]

Hi,

I purchased a 2002 3.0D Sport X5 in Decemeber but since the snow its burning oil and can see a fog of blue smoke behind me.

The car idles fine, when reved the engine sounds fine, no loss of power however upon rev a smoke screen of blue smoke is coming out of the exhaust.

I also took the dipstick out and it started to push out oil so I put the oil dipstick back in.

It doesnt overheat either and if I didnt look behind me i wouldnt know anything was wrong. There are no engine management lights on.

The AA got me back and said it looks like the rings but I dont think its the case.

Anyone able to help or advise? I hear this could be a breather issue but should blue smoke excessivley be produced?

Thanks
Bin