Comprehensive set of images showing a typical timing belt replacement job. As you can see, a lot of other parts had to be replaced, either because they or broken, or as part of maintenance. The vehicle had only 85K miles.

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Oil leaks around the camshaft actuator

ECU sockets. The control modules has to be removed to gain access to the timing belt

Passenger engine mount had to be unbolted to have better access to the water pump

A broken plastic fitting on the thermostat housing on a 2009 Volvo XC90

Another view of the timing belt area shows the oil and coolant leaks

Oil and coolant leaks in timing belt area.

Closeup of the leaking front camshaft seal

Oil leaks in the back of the engine pointing to leaking rear camshaft seals

New camshaft seals were installed

Closeup of the new front camshaft seal

Valve cover prior to spark plug removal

Engine block was cleaned before installing the new water pump

New water pump and tensioner were installed

New idler pulley

View of the crankshaft after the oil pump was removed

Old paper gasket on the oil pump shows oil leaks

Oil pump was removed, new paper gasket, oring and crankshaft seal were installed

Special tool to hold the camshafts in place

Font crankshaft sprocket with the belt installed

New timing belt was installed

View of the timing belt area after engine was cleaned and new parts were installed

New thermostat housing in the center. Notice the part is made of metal and only the small barb fitting is made of plastic. Guess what will fail first?

Defective master cylinder, pedal sinks to the floor

A used part was supplied by the customer, but it didn't fit. One reason not to buy your own parts

A new master cylinder was installed

Leak from the drive shaft axle seal

Defective drive axle

The defective drive axle

Brake pads were almost gone

Old pad vs new pad

Tie rods had to be replaced, too