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The 2012 Volvo XC90 is equipped with a timing chain in its engine, which is considered an upgrade from a standard belt because it doesn't require replacement. Timing belts typically need to be changed every 60,000 to 100,000 miles, making it one of the costliest routine maintenance tasks. In contrast, the timing chain can typically last for over 300,000 miles. However, it's recommended to inspect the chain annually to ensure it's secure and undamaged, and to keep it free from debris. Additionally, it's still important to replace the water pump driven by the chain every 100,000 miles for optimal performance.
The 2012 Volvo XC90 is equipped with a timing chain.