My 307 sw turbo sounds like a noisy hairdrier when it kicks in! There seems to be the initial boost but if you keep your foot down, it starts getting louder and ther doesn`t seem to be much power in high rev range! Are all 307 turbo`s like this or is it faulty? Sounds like a very loud hiss in the cabin all the time and its very off putting whilst driving on long journeys! Also, i only seem to average about 40mpg, even on the motorway. Whatcar figures say i should get in excess of 50 combined, could this point to a fault with the turbo?
Any help is appreciated!

John Porter, May 2008

not got answer but my 307 sw hdi 110 is the same have u fix it and if you have wil let me no what it is thanks

ziggy, July 2009

Thanks very much caine, i`ll check it out right away!
I appreciate the quick response!

John Porter, May 2008

Thanks very much caine, i`ll check it out right away!
I appreciate the quick response!

John Porter, May 2008

check all associated rubbber pipes ,basicaly follow the hiss think u will find one damaged,they perrish with age.only the ones 10 mm or less in diameter usually ar connected to intake side.dont miss the 1 that goes to the master cylder also the big intakes connected to the turbo should be v tight

caine, May 2008