If you’re in Rotherham you’re a short trip to WOM, if there’s something you can’t fix yourself Marcus and Rob are real FSI experts, not cheap but cheaper in the long run than a garage who doesn’t know what they’re doing imo.
Also you really need a VCDS Peter. Not expensive and it will lead you straight to any faults. I bought an FSI that was an MOT failure on emissions and in the tester’s opinion need a lot including sensors and a cat -VCDS showed that the ECU thought the engine temp was -30C. No wonder it was running rich and failed on emissions. VCDS showed it needed a new temp sensor…….. a bit cheaper!
Also, in case no one has mentioned it, make sure the engine check light goes on when you turn the key and goes out when it starts.
Happy yellow CS FSI -ing