Although, when you take a BMW to be serviced you do get a concierge to point you in the right direction for the hourly rate you pay.
Might need to get the apprentice to drag out his tuxedo overalls !!
But seriously..
When we started doing the 300/400 series SIDS. The amount of wing attach fittings that we replaced due corrosion or stress cracking was alarming.
Yep !! The bits that hold your wing on..
Are YOU a gambler?