Hi, don’t know if anyone else has had this problem but I’m at a loss to know what is causing and how to fix so any help would be appreciated. I have a 2013 Leon that has done 38k miles. It has been running fine but a few months ago I left the house and was just down the road when I experienced loss of power. It felt as if I’d put into 5th gear rather than 3rd. I then had a horrible smell as if a mattress was burning. I pulled over and checked under the bonnet. I couldn’t see anything amiss and had no warning lights on so after a few minutes starting the engine again and everything was running fine. I took it to the garage and they checked it over. There wasn’t any error codes showing and it has been running fine since. Yesterday I was returning from holiday and the same thing happened again. At first I thought it was because the road surface had changed and the car seemed to be a little juddery but then the loss of power and smell. I pulled over , again no errors showing. Waited and tried again but still no power. I called out the AA. They initially said the oil was on minimum so topped that up but engine started fine. Checked to see if any errors showing and again nothing. Looked over the engine and nothing appearEd to be wrong. Set off again and within a short distance felt the power go. It felt as if the brakes were still on but they weren’t. Pumped the brake pedal which seemed to then be ok and started again. Went about 25 miles and lost power again. Pulled over and after a few minutes started the engine again and seemed fine and as I was by then almost home managed to drive home ok. Obviously want to get it sorted but where do I start?