Our S60 2.5T (model year 2004) is seven years old, has run 120,000 km and was always scheduled for inspection at Volvo. When I wanted to register the car for inspection, I was completely surprised when the computer of the contract workshop spit out the 140,000 km inspection plan including timing belt changes. We bought the car again at that time, and the original service booklet, which we received with the vehicle, expressly sees the timing belt change only at 160,000 km or every tenth year. I do not intend to change the timing belt already 40,000 km, or three years earlier than indicated in the service booklet without a plausible explanation. This is our third Volvo and we have not yet experienced such a thing at any brand. The dealer is apparently himself “victim” of his computer and could not explain it either. Does anyone here in the forum perhaps have an explanation as to how these inconsistencies can occur?