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#1
05-07-2014, 12:36 AM
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E53 4.4 Water pipe dislodged
Hayaku's water pump replacement instructional for replacing your water pump is excellent. See here- E53 X5 4.4i Water Pump Repair DIY
I dislodged one of the two water pipes when removing the water pump (the smaller one). Warning- easy to do. I have tried to push it back in, and it seems to have been relodged, but it can still twist. It is very hard to see where the pipe goes in. Can anyone advise me how to best get it relodged back in properly. Is this going to cause me issues? Any advise is appreciated. 
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#2
05-07-2014, 05:28 PM
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Sounds like the o-ring may have gotten dinged. Order new ones and lube with fresh coolant (or the water soluble lube of your choice) and carefully reinstall.
__________________
Kirk Las Vegas 2016 X5 40e Mineral White/Black Dakota Leather, ZLL, ZCW, ZDA, ZDB, ZPP, multi contour seats, rear side window shades, HK stereo 2011 E90M3, 6-speed manual
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#3
05-07-2014, 08:48 PM
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I did the same while replacing my water pump back in 2012, the pipes are just held in place by the O-rings until you bolt the pump down, so yes you can twist them until you tighten the pump down.
__________________
2002 X5 4.6is 1999 C5 Corvette 1992 Mitsubishi 3000GT VR-4 1994 Kawasaki ZX-9R 2005 Mazda 6 Wagon (Wife's) 1991 Mitsubishi 3000GT VR-4
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#5
05-09-2014, 09:47 PM
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Been down this road with my 01 E53 4.4 with 140k. Ended up with a trickle coolant leak after not getting the pipe seated just right.
Had to remove the intake and the new water pump. Bought new pipes and o-rings (BMW pipes were not too pricey online) as the ends had roughened up from corrosion over the years and I didn't want to do it a third time. If you still have it apart now, I would replace the pipes and all the o-rings to be done with it.
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#7
05-13-2014, 10:43 PM
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I ran into the same issue but I was able to reseat the pipe using my iPhone as a crude scope to see down there while working. The pictures also helped confirm positioning. So far so go no leaks. As others have said it's a o-ring so it can rotate. Hope that helps out
__________________
2013 X5 xDrive3.5i Premium 2002 530I Sport Package 2001 X5 4.4i 2001 M3
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#8
05-13-2014, 10:46 PM
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Thanks for the confidence Vonbimmer- I did exact the same. It looks nicely lodged and I am not going to open the back/top of the engine to double check. It all back together now so will pick up coolant today and see how it goes.
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