BMW 6 Series - Tech Talk E24,E63,E64,F12,F13
im looking at getting a 6 series as im selling my 320i coupe.
Originally i wanted a 630i but then i did a stupid thing and test drove a 645ci - now i want one!
Trouble is, i have been scared off by stories of inevitable & expensive issues with the valve stem seals. For info im looking at...