Hello, I bought an Alfa Romeo 156 1.9 JTD from 1st hand with a completely guided service booklet. It was approved for the first time in 2004 and now has 120,000 km down. According to the service booklet, the timing belt would have to be changed for the first time at this mileage level. However, a change already took place in 2013 at 57,000 km. This was probably rather unscheduled. My question now in the round: Should I change the timing belt anyway or is this now rather unnecessary? Thank you already in advance for your answers!