2011. 66k miles Bought from and Fully maintained/ serviced by Halliwell Jones bmw/ mini garage Southport. Heard unusual vibration and sought advice. Told it was to a known bmw engine fault namely the oil pump chain had become too slack. £2666 to repair!! Mini service contacted mini headquarters to ask for goodwill but declined. I've also asked but once again told no. Surely if it's a known fault they should take some responsibility!? I wondered if others have had this problem or if you can advise? regards Shelly Hughes