I think a lot comes down to individual opinion of Technician. My car has always [assed MOT's without advisories. However, on the penultimate service at Lexus main Dealer, they said the rear disks and pads needed replacing and they offered a price for doing it. I actually bought replacements intending to put them on (as I did the fronts a year previously). but due to my wife needing much more help these were not fitted. I was therefore expecting this to be mentioned when they serviced my car last year but it wasn't, just that the trailing arm bushes needed replacing with an offer to do that @ circa £1500. I will take a look myself when it stops raining and becomes a little warmer. If they still seem reasonable and get through MOT, I will leave for another year. Be interesting to learn what Lexus say at next service!