See more from Ask Carzone 
When to replace an S60's belt?
When should timing belts be replaced IN Volvo s60
Our answer:
Hi Patrick,
You've not told us engine or model year so we're going with the 2010-2018 model and the popular D3 163hp diesel engine. Its belt must be changed at least every 180,000km or 10 years - whichever comes first.
Have a motoring question? Ask us here!
Ask us anything motoring related and please provide as much information as possible so we can give you the most accurate advice.