Feel a little daft asking but I haveheard a very strange noise from my 2001 vw polo. Just driven about 30 miles and had parked, engine still running and in neutral I hear this kind of glug glug sound kind of like you hear when you cook a tomato pasta sauce, I'm not even sure it was coming from my car but it sounded like it was coming from the back. I had just filled up with petrol aswell.
And then another sound I heard was little a train missing a few track under the bonet, I had a look and it sounds as though its coming from the front mainly from the left side when you are standing right infront of it.
Was a cold night and engines to do make noises but I was wondeirng if this is anything to be worried about ?
Thanks