Is it necessary to change the timing belt on a Mazda protege at 100000 km?

Yes, it is generally recommended to replace the timing belt of a Mazda Protege at or before 100,000 kilometers, or every 5 years, whichever comes first. The timing belt is a critical engine component responsible for synchronizing the rotation of the crankshaft and camshaft, ensuring proper valve timing and engine performance. Over time, the belt wears and becomes less efficient, leading to potential engine damage. It's essential to adhere to the manufacturer's recommended maintenance schedule to replace the timing belt before it deteriorates and causes significant problems.