Has anyone seen a failure of the connector between the manifold and turbo, or is it usually just the seal ring? The manifold kit includes the seal, but I'm wondering if I might need the connector too. Don't want to tear it apart just to find out.

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1984 300D Light Blue/Blue
2006 C280 Silver/Black

I assume you mean between the turbo and intake manifold. The rubber o rings often go bad, but I have never heard of the aluminum connector going bad, and don't see how it could unless it was installed incorrectly.

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1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver

1982 300SD - 232K miles - Wife's Daily Driver

1986 560SL - Wife's red speed machine

You can here the turbo whistle on my car. It's been like that since I have owned it...almost 4 years now. I wounder if the rubber rings that seal the turbo and intake are to blame...

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RRGrassi


70's Southern Pacific #5608 Fairmont A-4 MOW car

13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete.

91 W124 300D Turbo replaced, Pressure W/G actuator installed. 210K

90 Dodge D250 5.9 Cummins/5 speed. 400K

Thanks guys! Yeah, I guess it should have been turbo to manifold! Between that leak and oil seepage from the main manifold gasket, it's time to get into it. And the turbo has whistled since I got it too. Will let you know if installing the kit resolves it.

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1984 300D Light Blue/Blue
2006 C280 Silver/Black

When it is running and making the noise you might squirt a little oil on it... starting on one side and systematically going over it... that is the way manifold whistles were found at one time on gas engines...

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1980 240d ,

chain elongation, cam marks reference:
http://www.peachparts.com/shopforum/diesel-discussion/10414-help-i-need-check-stretch.html

http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html

evap fin cleaning:

http://www.peachparts.com/shopforum/diesel-discussion/156207-photo-step-step-post-showing-w123-evaporator-removal-1983-240d-1982-300td.html?highlight=evaporator

A/C thread

http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html

The whistle only happens in my car under acceleration. Very light to none at 70 mph, but if I accelerate, it gets louder, the eases off as I ease of the pedal, to cruising speed.

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RRGrassi


70's Southern Pacific #5608 Fairmont A-4 MOW car

13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete.

91 W124 300D Turbo replaced, Pressure W/G actuator installed. 210K

90 Dodge D250 5.9 Cummins/5 speed. 400K