Turbo Whistle

[sammerry]

I have a question,

Recently I have noticed my turbo whistle has gotten louder in my MK5 GTi in the last week, could this be because I have recently started using v-power rather than standard pump fuel or could it be something more serious?

My car has just hit 70000miles.

[Poached]

I have a question,

Recently I have noticed my turbo whistle has gotten louder in my MK5 GTi in the last week, could this be because I have recently started using v-power rather than standard pump fuel or could it be something more serious?

My car has just hit 70000miles.

Possibly a torn diaphragm on the Diverter valve. It's Bolted onto the turbo so not the easiest item to get to and it's held in place by 3 bolts.

http://www.mk5golfgti.co.uk/forum/index.php?topic=44709.0

Do you know if it's been checked at all?

 

[sammerry]

Thanks for the reply,

It could be this, I thought it was performing ok but driving to work this morning it seem to be losing a little boost at higher rpm's....
I will investigate....

Sam

[Poached]

Thanks for the reply,

It could be this, I thought it was performing ok but driving to work this morning it seem to be losing a little boost at higher rpm's....
I will investigate....

Sam

Yes you will lose some performance as you're leaking boost. Have it checked out, I wouldn't expect more than 1 hours labour to rectify the fault.

[sammerry]

Going to get and obd plugged in to make sure, then get my bro to do it, its damn useful have a mechanic in the family! I would do it myself but I dont have ramps.....

[AlanD]

Mine is currently in this state. Its got a leak somewhere which is very audible as you go up the rev range. The leak can be from any number of places, I just haven't got around to sorting out.

Shouldn't do any damage to the car but you will lose performance so better off getting it looked at sooner rather than later. A simple check you can do is the check all your hoses and corresponding jubilee clips to make sure they are all on tight.

[sammerry]

Turns out it was the DV, great big split in the diaphram, possibly one of the easiest fixes ever, took all of 15 mins.....
thanks for the help guys!