The timing belt is one of the most critical parts of your engine. If it breaks, it's often catastrophic engine failure. Here's everything you need to know to maintain it stress-free.
When to change it?
Frequency varies by manufacturer: every 100,000 to 180,000 km, or every 5 to 8 years. Check your service manual. Modern engines often have longer intervals (up to 180,000 km).
Warning signs
Grinding noise at startup, visible cracks on the belt, loss of power, check engine light on. If you notice any of these signs, consult a mechanic quickly.
What does it cost?
Timing belt replacement costs between €500 and €1,200 depending on the model. It's expensive, but an engine failure can cost €3,000 to €8,000. The math is simple.
Belt or chain?
Some engines use a timing chain (theoretically maintenance-free). But beware: even a chain can stretch or have a failing tensioner. Check your specific model.