under drivers side at the front there is a rattle noise when i press accelerater like something inside pipe loose it sounds like the car has been decat:confused
I also have a 318is, if the noise is around idle speed or just above check this exhaust heat shield, mine is vibrating because it is completely worn. I don't want to buy a cat for that so do you think it's possible to just remove the shield and drive like that?Check the gearbox to front pipe exhaust bracket. These can rust through and rattle.
Number 4 on here:-
Also check all the exhaust heat shields around the cat....:thumbsup