I bought a 2 year old I30 with remainder of manufacturer’s warranty and paid for an extra year.
My issue with Arnold Clark is rear o/s door now doesn’t open from inside. The garage said if it isn’t covered by warranty then they will charge a £90 investigation fee! If it stopped working under warranty I assumed it would be covered!! I initially had problems just after buying car: door handles sticking open from outside and they were repaired.
I also have a Renault Captur and with MOT got an advisory saying front n/s fog light was inoperative, so I booked it in NEXT day to have bulb replaced. That morning I checked light and it worked, as well as when turning corner. I phoned Arnold Clark and told them that and their response was if they found it working they’d charge me that £90 fee. Both cars were bought from adjacent garages in Stirling. Not happy, and bulb has been fine!