hi everyone I have a problem that I would like help with, my 11 reg Octavia vrs tdi has developed this problem when the DSG gearbox changes gears it makes this hissing sound and after getting it checked I was told the oil cooler had gone bust and the gearbox oil had went into the radiator and because the oil level has gone down thus the gear changing is making the hissing sound coz its not as lubricated so I got the oil cooler change, the gearbox oil and filter changed and got the radiator flushed but just after 300miles its started again.
so can anyone help me out and let me know anything to help with this problem
thanks
Ali