My son purchased an Audi A4 Estate in November, 2014 from Car Giant. He did so on a HP agreement financed through Car Giant. He also purchased an RAC Warranty and GAP Insurance at the time of buying. The car had 95,000 miles on the clock and a full Audi dealership Service record. The car now has done 107,000 miles. Audi diagnosed a failure of a drive chain tensioner and has quoted £10,500 + VAT for repairs stating the car needs a new block and the catastrophic failure has wrecked the engine.

Where does my son stand legally please? Has he any rights under the Sale of Goods Act or the new Consumer Rights Act? Audi have declined to consider a sympathetic warranty claim. Audi admit the failed part is not a serviceable item.

Has my son any rights with the Hire Purchase Finance Company as isn't the vehicle in their ownership until the finance is paid off? I understand the sales RAC warranty only covered up to £2K worth of costs.