Everything that could go wrong went wrong. 1st - I will never even go to them again. Example: quoted £200+ to change a rear light bulb that it costed me less than £20 and it took three minutes to change myself (I am not a mechanic) Quoted £ 700+ to replace back brakes and discs. Found an honest mechanic (the one I used to go to before I was stupid enough to buy their extras) and spent £ 300. They lie throught their teeth and try to rip us off at every turn with their policies (oh, this is not refundable, oh that is not covered) It's a given that most newer cars are too complex and difficult to repair compared to cars made before 2016, but Arnold Clark verges on criminality and I hope they will get their comeuppance one day. If you ask them a question in writing, they call you back so there is no record. I bought a new car and was clever enough at the time not to go back there for "services" because they check next to nothing. However I became stupid when I got their guaranteed used. I was supposed to be under warranty but they did not honour one single thing so far. Never again. conversely the only decent AC is the one in Auchinloch, and Springburn is kind of ok. But please avoid the one in Dennistoun as they are professional con men.