330d Garrett Turbo condition question

sparkymarky · 10-24-2017, 08:25 AM

Just done main and egr thermostats and as you have to remove the turbo cold air feed hose, I thought i'd check out the turbo condition whilst i was in there.

1. If i zoom in on the blades i can see some saw tooth wear near the tips. Is that to be expected at 110k?

2. There's about 1mm of side play (radially) but no in/out axial play on the shaft. That normal?

3. All blades seem to have oil/carbon build up. Normal?

4. The turbo inlet hose i took off had a bit of oil in the bottom of it - the bit that sits over the turbo housing intake.
Normal?

Thanks guys! Pic AND video below.

Video sharpens up about 2/3 way in:
View My Video

dragerboy · 10-24-2017, 08:27 AM

Looks bloody good to me for 110k miles.

sparkymarky · 10-24-2017, 08:43 AM

Just about make out some feathering on the tips

ChawenHalo · 10-24-2017, 05:50 PM

I ran a 2007 330d xdrive (heavier and more solicited) for a year with 220000 km and there was a little oil around the turbo. Mate (Who is a pro mechanics and high grade at that) said it was normal and nothing to worry about. Car ran beautifully and boosted like a MF. Much boostier than an N57...

Benskett · 10-25-2017, 07:39 AM

Remember that the cam cover breathers suck oil / vapour from the cam cover back down into the intake (pre-turbo), which is likely what that film of oil is.

Fitting an oil catch can should reduce / stop this.

10-24-2017, 08:25 AM	#1
sparkymarky Captain 103 Rep 709 Posts Drives: BMW M4 Join Date: Sep 2013 Location: Middle earth. iTrader: (1) Garage List 2006 bmw 330d M Sport [0.00]	330d Garrett Turbo condition question Just done main and egr thermostats and as you have to remove the turbo cold air feed hose, I thought i'd check out the turbo condition whilst i was in there. 1. If i zoom in on the blades i can see some saw tooth wear near the tips. Is that to be expected at 110k? 2. There's about 1mm of side play (radially) but no in/out axial play on the shaft. That normal? 3. All blades seem to have oil/carbon build up. Normal? 4. The turbo inlet hose i took off had a bit of oil in the bottom of it - the bit that sits over the turbo housing intake. Normal? Thanks guys! Pic AND video below. Video sharpens up about 2/3 way in: View My Video __________________ 2014 M4. Non-ZCP. GTS EDC, DCT & Diff software with eibachs... gamechanger. Last edited by sparkymarky; 10-24-2017 at 08:40 AM..
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10-24-2017, 08:27 AM	#2
dragerboy Captain 83 Rep 686 Posts Drives: BMW E90 330D Join Date: Apr 2016 Location: Horsham, UK iTrader: (0)	Looks bloody good to me for 110k miles.
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10-24-2017, 08:43 AM	#3
sparkymarky Captain 103 Rep 709 Posts Drives: BMW M4 Join Date: Sep 2013 Location: Middle earth. iTrader: (1) Garage List 2006 bmw 330d M Sport [0.00]	Just about make out some feathering on the tips __________________ 2014 M4. Non-ZCP. GTS EDC, DCT & Diff software with eibachs... gamechanger.
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10-24-2017, 05:50 PM	#4
ChawenHalo Second Lieutenant 68 Rep 286 Posts Drives: E91 330d XDrive LCI M Pack Join Date: Apr 2017 Location: Bordeaux iTrader: (0)	I ran a 2007 330d xdrive (heavier and more solicited) for a year with 220000 km and there was a little oil around the turbo. Mate (Who is a pro mechanics and high grade at that) said it was normal and nothing to worry about. Car ran beautifully and boosted like a MF. Much boostier than an N57...
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10-25-2017, 07:39 AM	#5
Benskett Private First Class 14 Rep 106 Posts Drives: E91 330D LCI Join Date: May 2017 Location: UK iTrader: (0)	Remember that the cam cover breathers suck oil / vapour from the cam cover back down into the intake (pre-turbo), which is likely what that film of oil is. Fitting an oil catch can should reduce / stop this. __________________ 2011 E91 330d M Sport - Manual
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