Used car buyers: Is mileage or age a bigger factor in reliability?

When considering a used car, the debate often centers on whether mileage or age is the more critical factor. Data from the Croatian Center for Vehicles (CVH) indicates that both significantly influence a vehicle's reliability, but in distinct ways.

For cars under five years old, the malfunction rate for top brands is remarkably low, typically between 1-3%. However, as vehicles enter the five-to-ten-year age bracket, these rates climb noticeably. For instance, Honda in this category had a 4.75% malfunction rate, while Volkswagen reached 6.59%.

The disparity becomes stark for vehicles older than ten years. Even premium brands like Mercedes-Benz saw malfunction rates around 14.35%, with BMW at 17.41% and Toyota at 19.01%. Some brands even exceeded a quarter of inspected vehicles showing malfunctions, illustrating a significant increase in issues with age.

While high mileage, such as 150,000 km in six years, often implies extensive highway driving which can be less taxing on certain components than short city trips, low mileage is not a guarantee of good condition. Time itself degrades rubber seals, hoses, fluids, batteries, and brakes, regardless of usage. Therefore, a younger car with higher mileage, if well-maintained, can often be a safer bet than a much older car with fewer kilometers.

Ultimately, the most reliable approach to buying a used car is to look beyond just the odometer reading or manufacturing year. Thorough inspection of service records, chassis, engine and transmission condition, and a cold start check are far more valuable than the numbers presented. Focusing on the specific car's overall condition and history provides a clearer picture of its reliability than relying on generalized statistics.