He did not mention anything about the lower rails
___________________________________________________
Seems to me that I remember reading on this forum that the lower rails normally need not be replaced, at least not at the mileage that the uppers are usually done. I had the chain/railings, etc, done on my 560 SEL wtih 110K miles about a year ago and my trusted mechanic did not do the lower rails. And I know he would have done the lower rails if he felt it was necessary.