Don't get me started. I fitted snow tyres on to the golf and burst the side wall in of them hitting a pothole after 3 days. £135 in the bloody bin after 3 days. Went down to take a phototherapy next day and............. They had bloody fixed it
Used to get paranoid about this. It's probably water collected in the engine bay. First time I drove through a big puddle with uprated headers I proper crapped myself steam poured out from between the wing and bonnet though I had burst the radiator
First check the fault codes and check they are clear. If not replace what needs done. Does it sound normal?
Are the intercooler pipes on ok? I experienced a similar thing when i had a split pipe.