I uncover the reliability problems hiding behind some of the UK’s most trusted cars.

I examine issues affecting the Ford Puma, Volkswagen Golf, Nissan Qashqai, Hyundai Tucson, Kia Sportage, Mercedes A-Class, BMW 1 Series and Vauxhall Corsa. I cover coolant loss, infotainment failures, e-Power problems, dual-clutch transmission faults, timing chain failures and electric-car software issues.

I also explain the common thread linking these problems: increasingly complex engines, transmissions and technology replacing simpler systems. I finish with practical advice on researching specific powertrains, avoiding early production cars and maintaining fluids properly when buying a used car.

0:00 Reliability problems in popular UK cars due to new technology.
0:48 Ford Puma
3:21 Volkswagen Golf
5:50 Nissan Qashqai
8:04 Hyundai Tucson
8:21 Kia Sportage
10:28 Mercedes A-Class
12:34 BMW one Series
14:43 Vauxhall Corsa