A loud bang, a hissing sound, and suddenly nothing works anymore: A broken serpentine belt, also known as “belt failure,” is an annoying experience for any car driver. But what exactly does “belt failure” mean, and how should you behave in such a situation?
What does “belt failure” actually mean?
The term “belt failure” describes the sudden failure of the serpentine belt in the car. This belt, often made of durable rubber, connects important engine components such as the alternator, water pump, and power steering. If the belt breaks, these parts no longer function properly, which in the worst case can lead to engine damage.
“A broken serpentine belt is like the failure of the heartbeat in the engine,” explains Dr. Ing. Markus Schmidt, automotive expert and author of the book “Modern Vehicle Technology.” “Without a functioning belt, the entire drivetrain comes to a standstill.”
What are the signs of a broken serpentine belt?
Often, a belt tear is announced by unusual noises. A loud squealing or whistling from the engine compartment can be a warning sign. Flickering lights or stiff steering can also indicate problems with the serpentine belt.
What to do if the serpentine belt is broken?
If the serpentine belt breaks while driving, staying calm is the top priority. Avoid abrupt steering movements and pull the vehicle over to the side of the road in a safe place. Turn off the engine and secure the vehicle with the hazard warning lights and the warning triangle.
Driver calling for roadside assistance after a car breakdown
Afterwards, it is advisable to seek professional help. Call roadside assistance or a repair shop. A broken serpentine belt should only be replaced by a specialist, as installation requires special knowledge and tools.
How can you prevent “belt failure”?
Regular inspections and maintenance are the best protection against a sudden belt tear. Have the serpentine belt checked at the intervals specified by the vehicle manufacturer and replaced if necessary.
Frequently asked questions about “belt failure”:
- How long does a serpentine belt last? The lifespan of a serpentine belt varies depending on the vehicle model and stress. As a rule, the belt should be changed every 60,000 to 120,000 kilometers (approximately 37,000 to 75,000 miles).
- What does it cost to replace a serpentine belt? The costs for a serpentine belt replacement depend on the vehicle model and the repair shop. On average, you should expect costs between 100 and 300 euros (approximately $110 to $330 USD).
