You should check your owners/maintenance manual. if you don't have either call your local dealer. these cars will last a very long time if you keep after your maintenance. It's a good idea to change those items at the proper intervals i do suggest changing the oil at no more than 5000 miles, these engines today run hotter and the oil tends to "bake"inside the engine-not a good thing.
Every 50,000 miles.
The cost to change a timing belt on a Volvo S60 ranges from $500 to $750. It is an expensive repair in most instances due to timing consuming nature of the job.
120,000 miles
how do adjust timing belt on a volvo 240 DL ?
Timing BELT
the 1.6 D Version is at 144,000 miles
It has a timing belt,
Depending on where you live, belt only and labor, $350 to $500.
When you replace the timing belt (every 70,000K).
75000 miles based on what I hear and see. These engines wont tolerate a broken timing belt. Change it now
Need alternator belt routing on XC70 2003 Volvo
It has a timing belt.