15 of the most unreliable older cars in the UK

15. Ford Mondeo (2007-2014) – Reliability rating: 64.8%

Common faults – Battery, brakes, engine electrics, gearbox/clutch and exhaust system

WhatCar? a car magazine in the UK recently did a survey asking nearly 13,000 car owners about cars they’ve owned over the past years, and what sort of problems they’ve had. The problems they classified the faults as was into 14 groups. These included issues with air conditioning, battery, bodywork, brakes, engine, engine electrics, exhaust, fuel system, gearbox/clutch, infotainment/dashboard, interior trim, non-engine electrics, steering and suspension. Based on this data, they were able to compile a reliability marker against each car, which was a percentage out of 100. The lower the rate, the less reliable the car was. Here’s the 15 most unreliable older cars in the UK. You won’t believe what Porsche holds the highest spot on the list.

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