E90 Turbo 'Siren' Whine

SuperSean2003 · 06-06-2011, 02:55 PM

Hi

I apologise, as this appears to be a relatively well-covered topic.

However, I'm looking for a bit more than 'replace the turbo' is possible. Does anyone actually know the real cause, and is if feasible to fix it yourself?

I'm failry savvy when it comes to cars and have never made any glaring blunders as far as I know.

I am wondering how easy it is to change yourself. I've heard dealers charge up to 1500 with independents charging £300-700. If I can do it myself in less than maybe 6 hours I'd rather do that, and buy a recon as the car is going back shortly.
I don't seem to get smoke, but performance drops at the top end (giving erroneous RPM and gear changes as it's auto).

Any help would be greatly appreciated.

Cheers

MEGA · 06-06-2011, 03:58 PM

STOP DRIVING IT.

If the turbo completely gives up, you're likely to need a new engine (actuator flaps or even the actual blades getting sucked into the engine)

"jinjur" on this forum did a replacement turbo DIY, so I'd recommend you speak to him re: how to go about things

m1bjr · 06-06-2011, 04:58 PM

+1

The whine is caused by deformed/chipped/bent blade tips.

They can easily disintegrate.

No biggie to fit a recon, but are you equipped to deal with seized manifold bolts etc?

06-06-2011, 02:55 PM	#1
SuperSean2003 Registered 0 Rep 1 Posts Drives: 320d M-Sport Auto Join Date: Jun 2011 Location: Manchester, UK iTrader: (0)	E90 Turbo 'Siren' Whine Hi I apologise, as this appears to be a relatively well-covered topic. However, I'm looking for a bit more than 'replace the turbo' is possible. Does anyone actually know the real cause, and is if feasible to fix it yourself? I'm failry savvy when it comes to cars and have never made any glaring blunders as far as I know. I am wondering how easy it is to change yourself. I've heard dealers charge up to 1500 with independents charging £300-700. If I can do it myself in less than maybe 6 hours I'd rather do that, and buy a recon as the car is going back shortly. I don't seem to get smoke, but performance drops at the top end (giving erroneous RPM and gear changes as it's auto). Any help would be greatly appreciated. Cheers
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06-06-2011, 03:58 PM	#2
MEGA Dieseasal 204 Rep 6,881 Posts Drives: LCI E92 335d M-Sport Join Date: Jan 2009 Location: Harrow, London iTrader: (2)	STOP DRIVING IT. If the turbo completely gives up, you're likely to need a new engine (actuator flaps or even the actual blades getting sucked into the engine) "jinjur" on this forum did a replacement turbo DIY, so I'd recommend you speak to him re: how to go about things __________________ Previously: 2003 Peugeot 206 1.6 8v \| 2006 E90 320d M-Sport, 19" BBS CH, Full Ice-cold JL audio install, August 2010 Total BMW 6 page feature car. \| 2003 Nissan 350Z GT Coupe 286BHP Now:2010 E92 LCI 335d M-Sport
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06-06-2011, 04:58 PM	#3
m1bjr LSD - No, you're not seeing things 72 Rep 3,302 Posts Drives: Baby F36 Gran Coupe Join Date: Mar 2010 Location: Plymouth UK iTrader: (4)	+1 The whine is caused by deformed/chipped/bent blade tips. They can easily disintegrate. No biggie to fit a recon, but are you equipped to deal with seized manifold bolts etc? __________________
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