Does a timing belt need to be changed every five years?
The handbook for my Fiat 500 says that the timing belt should be replaced after 72,000 miles or every 5 years regardless of mileage. Since the belt was last replaced 5 years ago the car has only done 8000 miles. Should we replace the belt, or ask a mechanic to check whether the belt needs replacing (if this is easy to do), or leave it until it has done more mileage?
The recommended change period is 60,000 to 100,000 miles or 5 years. Given that you have only completed 8,000 miles we would as you suggest get your mechanic to inspect the belt (annually) as this should suffice. To inspect the belt requires the timing cover to be removed and the following the areas to be inspected:
Cracks: Any visible cracks indicate the belt is degrading.
Fraying: Frayed edges are a sign of wear and potential failure.
Missing teeth: A single missing tooth can cause severe engine damage.
Glazed or glossy appearance: This indicates the rubber is hardening and losing flexibility.
Marbling or uneven wear: These can also signal a deteriorating belt.
If any of the above was present then we would replace.
Cracks: Any visible cracks indicate the belt is degrading.
Fraying: Frayed edges are a sign of wear and potential failure.
Missing teeth: A single missing tooth can cause severe engine damage.
Glazed or glossy appearance: This indicates the rubber is hardening and losing flexibility.
Marbling or uneven wear: These can also signal a deteriorating belt.
If any of the above was present then we would replace.
Answered by Alan Ross on
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