How do you replace the camshaft seals on 2004 Volvo xc70?

To replace the camshaft seals on a 2004 Volvo XC70, first ensure the engine is cool and disconnect the battery. Remove the timing belt cover and loosen the timing belt to access the camshaft gears. Carefully remove the old seals using a seal puller or a flat tool, then install the new seals, ensuring they sit flush. Reassemble the timing belt and cover, and reconnect the battery before starting the engine to check for leaks.