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.
To change the timing belt on a 1994 Volvo 940, first ensure the engine is cool and disconnect the battery. Remove the engine covers and any components obstructing access to the timing belt, such as the crankshaft and camshaft pulleys. Align the timing marks on the camshaft and crankshaft, then loosen the tensioner and remove the old belt. Install the new timing belt, ensuring proper alignment with the timing marks, and reassemble the components in reverse order before reconnecting the battery.
75000 miles based on what I hear and see. These engines wont tolerate a broken timing belt. Change it now
When you replace the timing belt (every 70,000K).
Need alternator belt routing on XC70 2003 Volvo