hello i have a mk5 golf gt tdi 55 plate was 140bhp but my dad had it remapped. it was his car but he brought a new car so gave me this golf. in first gear and 2nd it just seems slow until it his 2,000 - 2,500 rpm and it just wants to take off. last year the original turbo blew up so had a new one fitted. next friday I'm having my engine cleaned by engine carbon clean. hope this will help it bit. apparently when the turbo blew up there was only about 0.5l left in the engine so put a lot of diesel down the exhaust ect!