FAO Gareth..

[markleonard]

The pic below is what caused the big cloud of steam breakdown I had in 'her' bimmer last night...... the expansion bottle had split from top to bottom!!!

Got a new one this morning from the Europarts link you sent (thanks) and the guy said "Common fault M8!, they only last 40K miles"...

So keep an eye on yours just in case, or better still renew it!!..

[gareth]

Hmmmm, so that blows - I keep driving for an hour or so - new engine under warranty = result!!
I'll keep my eye on it. Glad you got sorted.