Yesterday i noticed a very strange noise coming from under the bonnet whilst driving.
It happens only when accelerating slightly hard.
Heres the issue:
the engine makes a 'whoooooshing' sound when accelerating slightly hard, normal acceleration is fine - it sounds like a burst of wind noise which is what i thought it was, but its definately not that as iv tested it many times now. What on earth is it? A turbo leak?
This morning about a minute after setting off to begin my 40mile journey to work it happened but the engine malfunction light also came on - so i thought poo!....pulled over, stopped engine waited a bit then started up again and fine - but the same noise still as i had to check.
Iv never had any warning lights come on to indicate anything needs topped up etc and Oil is fine as it was topped up 2 weeks ago.
mpg was also 47mpg instead of around 54 which is the norm for me....
sounds like theres a whole in the intercooler, or maybe if your lucky, just a pipe to the intercooler. if it is the intercooler, whats more of a concern is what caused it to blow a hole in it? when mine went, it was because it was filling with oil which was leaking from the turbo which was worn out. so you could end up needing a new intercooler and a new turbo.
i was advised that i could leave the turbo as it would last another few thousand miles, but if yours turns out to be the same problem, id advise you to change it straight away. after about 200 miles the turbo blow in spectacular fashion, it dumps the entire contents of the old straight into the engine via the intercooler. so the engine runs on this oil with the rev counter on the redline, with absolutley no way of stopping it,bellowing a massive black cloud of smoke. eventually the engine stopped dead and your left wondering if the engines just ceased up. it hadnt, but it was scariest thing thats happened to me in my 15 years of driving!!!
but thats a worst case scenario!!, it could just be a split hose or something
hope this helps, and i havent just scared you to death