No, you should not continue driving with a worn timing belt. A broken or aging timing belt can snap without warning, and this almost always results in severe engine damage. The cost of an engine overhaul is many times higher than a preventive replacement. In this article, we answer the most frequently asked questions about the timing belt, so you know exactly what to look out for.
What happens if a timing belt breaks while driving?
If the timing belt breaks while you are driving, the engine stops working immediately. In most modern engines — known as “interference engines” — the pistons and valves collide the moment the belt fails. This causes immediate, and often irreparable, engine damage. In practice, your car is then a total loss, or you are facing a repair bill running into thousands of dollars.
In some older engines — known as “non-interference engines” — the risk of immediate engine damage is lower. But even then, your car comes to a sudden stop, in the middle of the road or on the highway. That is not only costly, but also dangerous for yourself and other road users.
The frustrating thing is that a timing belt rarely gives any indication that it is about to break. There is no warning light, no sound to alert you. Preventive replacement is therefore the only sensible approach.
How do you recognize a worn timing belt?
A worn timing belt can be identified by visible wear on the belt itself, but in practice the belt is difficult to inspect without partially dismantling the engine. The most reliable way to assess wear is an inspection by a mechanic, who visually evaluates the belt for cracks, frayed edges, hardened spots, or glazing.
That said, there are signs you can watch for yourself:
- Ticking noise from the engine, especially when starting cold
- Difficulty starting or an engine that runs unevenly
- Oil stains around the timing belt cover, which may indicate a leaking seal that is also affecting the belt
- Check the service history: if you do not know when the belt was last replaced, treat it as a risk
When in doubt, have the belt inspected. A quick check takes little time and could save you a significant repair bill.
After how many miles or years should a timing belt be replaced?
Most manufacturers recommend replacing a timing belt after 60,000 to 90,000 miles, or after 5 to 10 years, whichever comes first. Age counts just as much as mileage, because rubber deteriorates even if you drive very little.
The exact intervals vary by make and model. Renault, for example, uses specific service codes and maintenance schedules for each engine type. Similar factory intervals apply to Peugeot, Citroën, and Dacia. Always consult your own car’s service booklet, or ask a mechanic who is familiar with your model.
A general rule of thumb: if you have a car that is 8 years old or more and you do not know when the timing belt was last replaced, it is wise to have it checked as soon as possible, regardless of the mileage.
What does it cost to replace a timing belt?
The cost of replacing a timing belt averages between $400 and $900, including parts and labor. This varies considerably depending on the car. A compact Renault Clio or Citroën C3 is typically cheaper than a larger or more complex engine.
Labor costs make up the largest portion of the bill, because the engine must be partially dismantled to access the belt. That takes time, and time costs money. But always compare this against the alternatives: engine damage caused by a broken belt can run to $3,000 or more, and in many cases the car is then an economic total loss.
Want to know what the replacement will cost for your specific car? Request a quote from a garage that knows your make and works with transparent pricing. Our repairs and maintenance page gives you more information about what we offer.
Should you also replace the water pump when fitting a new timing belt?
In most cases, it makes sense to replace the water pump at the same time as the timing belt. On many cars, the water pump is driven by the same timing belt, and a mechanic already has to carry out a significant amount of disassembly work to reach the belt. The additional cost of the water pump itself is then relatively small.
The reasoning is straightforward: if the water pump fails after another 20,000 miles when you have just had a new timing belt fitted, everything has to come apart again. That means paying for labor twice. By replacing both components at the same time, you only pay for that labor once.
Whether this applies to your car depends on the engine type. A good mechanic will check this for you and give you honest advice on whether combined replacement is worthwhile.
When is it too late to have the timing belt replaced?
It is too late the moment the belt breaks. Until then, you can always take preventive action, even if you have already exceeded the recommended interval. Are you driving a car whose timing belt is already at 120,000 miles when the manufacturer recommends 90,000? You are living on borrowed time, but you can still make an appointment today and eliminate the risk.
Have you bought a used car without a complete service history? Always have it checked to find out when the timing belt was last replaced. This is especially important for cars older than 6 years or with more than 80,000 miles on the clock.
Do not wait until your engine starts making strange noises or your car refuses to start. By that point, the damage has in many cases already been done.
How Autobedrijven Verdonk helps with timing belt replacement
At Autobedrijven Verdonk in Veldhoven, we replace timing belts for all makes. We know the factory intervals for Renault, Peugeot, Citroën, and Dacia inside out, and we assess the right approach for every make and model. No one-size-fits-all answer — just honest advice tailored to your car.
- Inspection of the timing belt for wear and age
- Replacement based on your car’s maintenance schedule
- Advice on combined replacement of the water pump and tensioner
- Transparent pricing with no surprises afterward
- Service for all car makes, not just Renault
Autobedrijven Verdonk also carries out maintenance and repairs for all other car makes.
Would you like to have your car prepared for winter, or do you have questions about maintenance? Feel free to contact us or stop by in Veldhoven. Get in touch or read more about our history and why customers have trusted us for over 95 years.