BMW state plug life for the 4.8L V8 is 100,000km = 60,000 miles.
As the wings have to come off to change the plugs it isn't a quick DIY job!

Last edited by Peter J; 18/04/20 04:04 PM. Reason: typo
Peter,
66, 2016 Porsche Boxster S
No longer driving Tarka, the 2014 Plus 8...