I have a couple of problems with my 2008 Octavia 1.9 TDI 105 BHP estate which i could do with some advice please . I bought the car at three years old from auction andI believe it was a Skoda management car. The aircon has never blown cold so last year I had it regassed at a local non franchised garage. The mechanic said there was no sign of leaks or damage and it held vaccum for ten minutes before the regass. Within three days it was not blowing cold and when I took it back the garage were not interested. So this week I took it to a franchised garage and they checked/for visible leaks and damage to no gain and pressurised the system with nitrogen containing an ultraviolet marker dye. Once again no visible leaks or damage, pressure maintained and they kindly re-gassed for free, the gas apparently contains amongst other things a green marker dye and no leaks have been evident. Within two days it had stopped blowing cold and my own mechanic states it must be the A/C condenser behind the glove box where the leak is? Apparently there are two on the Skoda the main one being in the front of the radiator? The second issue is loss of acceleration through the gears under load, gave it a run on the motorway and it wouldn't go over 80 mph. The coding indicated a faulty heater plug on cylinder 1 and an intermittent fault on the inlet manifold sensor (both changed) I took it for another spin on the motorway and it felt worse? My mechanic said it must be mechanical issue as they were no fault codes coming up so he he went exploring and found throttle body and EGR valve thick with carbon which he chipped off. The car is running a liitle bit better but still not A1, mechanic states the turbo charger is likely carboned up hence the lack of performance? Any advice would be welcome as I am considering the Mr Muscle scenario or a turbo cleaner additive or cleaner such as Forte, Archoil, Innotec etc or do i need to have it completely stripped down and manually cleaned?
