No boost + loud screeching noise?

[fstsven]

This morning my car (FR 1.4tsi) suddenly made a loud "screeching/whining" noise under hard acceleration and lost power. Every time I go above 3000 rpm, the noise returns and the power dies away. No obvious smoke from exhaust though. Turbo boost hose leak? What do you think? Thanks

 

[JMWalton]

Loud screeching noise ..... Tends to lean towards the turbo/turbo bearings. When you say screech do you mean like a metal on metal sound or more of a air whistle effect ? If it's a whistle it will be a split boost hose hope it's not your turbo mate

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[DEAN0]

Sounds like a loose belt screeching on the pullies.

 

[fstsven]

It's more of a (loud!) air whistle noise. It idles fine, although starting takes some cranking. Closer inspection yesterday also revealed small puffs of blue/black smoke from exhaust while idling as well as revving... I take this is not a good sign?
Can't take it to the garage before wednesday (they're closed for Easter)...

 

[DEAN0]

In that case it sounds like a boost hose has popped off.

Follow the pipes back from the front intercooler and look at each joint till you find the one that has come apart.

 

[jellybabybandit]

Also check the pipes for any splits in them. Might be hard to see at first as the splits sometimes done become visable till under load on the road

 

[JMWalton]

In that case it sounds like a boost hose has popped off.

Follow the pipes back from the front intercooler and look at each joint till you find the one that has come apart.

+1 spray abit of oil/split finder or something on there see if it bubbles

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[cuprat]

Sounds to me like either the bearing in turbo collapsed or the impellor nut has came off. remove the intake pipe and check. I had a cupra like this at work with collapsed bearing with no boost and screeching noise

 

[scooter188]

any fault codes or anything ? is the oil level all ok?

 

[fstsven]

Dealer confirmed: the turbo has gone... Luckily it's still under warranty, otherwise it would have been a 1700 euros bill. Am I the only one to think this is early for a turbo to go on a 37k kms car that isn't remapped, is always properly warmed up before driven hard and always allowed to cool down afterwards? Just bad luck I suppose, or does it happen regularly?