Beware the Wet Belt: A Mechanic's Warning for Used Car Buyers

As the used car market continues to thrive, with over 7.2 million second-hand vehicles changing hands in the UK in 2023, a mechanic is sounding the alarm on a potential pitfall for unsuspecting buyers. Dave Harrison, from 911 Auto Repairs in Sheffield, has raised concerns about a specific engine design that could prove costly in the long run.

Uncover the Hidden Risks of Wet Belt Engines

The Wet Belt Conundrum: A Ticking Time Bomb?

The wet belt engine, introduced across numerous popular models in the late 2010s, features an internal timing belt that receives lubrication from the engine oil. While this concept aims to improve fuel efficiency and environmental friendliness, the reality is far from rosy. Many car owners have reported that the rubber belt can decay rapidly due to constant contact with oil, leading to potential blockages in crucial parts like the oil sump filter or even complete engine failure if the belt snaps.According to Dave Harrison, the wet belt is a significant problem because it has a lifespan of only 10 years, after which it is prone to breaking. "The wet belt is a big problem because it only has a 10-year interval and then it breaks. It deteriorates, and it can stop your brakes working. But if it breaks after nine years, they don't want to know," he warns.

The Hidden Costs of Wet Belt Repairs

Dealing with a wet belt engine fault can be a daunting and costly endeavor. Harrison notes that the repair process is much more complex and time-consuming compared to a traditional timing belt. "And when it does [break], it's very difficult to fix. It takes twice as long as a normal belt to fix, and it costs more to replace," he explains.The expert further cautions that a wet belt failure can render a car "basically worthless," as the repair costs can be prohibitive. "That's one that makes your eyes roll when you see it – oh god, it's got a wet belt. They say it's better, but it ends up costing double to fix or it's unfixable and makes the car basically worthless," he adds.

Specific Models to Avoid: The Ford Fiesta, Focus, and B-Max

Harrison specifically advises prospective buyers to steer clear of 1.0-litre EcoBoost versions of the Ford Fiesta, Focus, and B-Max, as these models are known to be equipped with the problematic wet belt engine design.

Protecting Yourself: Crucial Checks for Used Car Buyers

When purchasing a used vehicle, it's essential to thoroughly inspect the car's service history and MOT records. This information can reveal how well the car has been maintained and its accident history, providing valuable insights into the vehicle's condition.Additionally, car history check services, such as the facility available through the DVLA's website, can help buyers verify the seller-provided mileage and MOT advisories. During the test drive, buyers should also be attentive to any unusual sounds, especially when navigating speed bumps and potholes, as these could be early indicators of potential issues.By heeding the mechanic's warning and conducting thorough due diligence, used car buyers can avoid the pitfalls of the wet belt engine and make a more informed decision when purchasing a pre-owned vehicle.