Change Car Timing Belt Kit Volvo S90/V90

The timing belt synchronises the rotation of the camshaft(s) with the crankshaft, ensuring that the inlet and exhaust valves open and close at precisely the right moment. It may also drive other components such as the high-pressure fuel pump or the water pump.

The replacement interval varies greatly between manufacturers, typically between 60,000 and 240,000 km or 4 to 10 years, whichever comes first. Always respect the time-based interval even if the mileage has not been reached.

On interference engines (the vast majority of modern engines), a broken timing belt causes the pistons to strike the open valves, resulting in bent valves, damaged pistons, and potentially a destroyed engine. Repair costs can reach several thousand euros. Preventive replacement is critical.

Difficulty level 5/5: very technical, requiring specialist tools (crankshaft and camshaft locking tools specific to your engine, tensioner tools, torque wrench) and precise knowledge of timing marks. Incorrect installation can cause severe engine damage. Recommended for experienced mechanics only.