THE Audi A3 diesel is the worst second hand car, according to owners.
It came bottom in reliability ratings — which were dominated at the other end by Japanese used motors with seven in the top ten.
The 2003-2013 Audi A3 diesel scored just 40 per cent in the What Car? survey.
Some 37 per cent of diesel A3s developed a fault — and 22 per cent of those were with the engine.
Around a third of repair bills were between £500 and £1,500.
The Ford Focus diesel (2004-2011) and Vauxhall Zafira (2005– 2016) were second and third worst.
Across all vehicles a third of owners reported a fault.
The Lexus CT hybrid was voted most reliable used purchase, with a 99.5 per cent reliability rating.
Only four per cent of CT owners reported a fault — and those were only with the battery.
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The Suzuki Swift and Toyota Auris Hybrid were second and third most reliable.
More than 18,000 drivers took part in the survey.
Steve Huntingford, of What Car?, said: “By shining a light on the reliability of various makes and models, we hope to help buyers make the right decision.”
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