Shocking stuff id say your right original plugs from day one serious penny pinching , ,although I know of a toyota auris bought new in 2007 still on its original oil its never had a service in the last 7 years
When it comes sale time the garage will have it advertised as one lady owner "mint condition"
I think the E92 320i I brought in to you @[Valdelisbmw] had the original plugs before you changed them?
That car had been main dealer serviced from day 1, under warranty until a few months back.
They also didn't spot the timing chain needed doing...prob cos the computer didn't say so.
yes ,and even on E60 models not much less recommended for plug replacement .In think it should be BMW guarantee if they didnt last 100k km :hehe!:
btw ceramic part missing from plug went in to the engine,and im sure they didnt last even half of recommended mileage