Hello together, my C70 II has become 10 years old in January/an additional inspection is pending. ATU says that now the timing belt has to be changed (he has now run to the 97,000 km). a) must/should the timing belt be changed after 10 years or 100,000 respectively? b) when must the water pump be changed? Does it have to be changed in any case if you change the timing belt? I also ask myself the following: I have had the oil changed/last with each inspection so far i Our own delivered (Castrol Edge Professional A5 Titanium 0W-30). Does this have to be changed every year if you only drive 10,000 km, or can you drive it 2 Jhre / ~20.000 km? Thank you for your answers.