Well - I tend to over service my vehicles , oil changes at 3k kinda stuff - mainly - but when I noticed a 15K T service for my 22 CX5-I was perplexed . Should I mess with factory spec bolts on all for corners ? Since I have no lift. Letting a dealer do it ? - Well. I did and after I got it back from what WAS a reputable dealer - it made knocking noises , which frankly pissed me off -Its new ! and WAS perfect. ~ So took it back - Tech looks like hes not happy about a " noise " - which he claimed had a TSB for the cross brace at the base of the windshield - if you pop the hood - its there- 2 bolts - each side - and retorqued all chassis bolts ...again - still feels like its off - and knocks - they claim its fine . Its not - I reccomend NOT doing this service - Its absurd -anyone else have this done ?