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#1
12-10-2013, 11:09 AM
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Grinding/squealing noise while slowly accelerating
this is my first post with my first "problem". I own 2001 X5 E53 with 4.4 engine - US import. The problem is - it started yesterday and it makes it while cold mainly. It is doing with light foot on accelerator around 1500-2000rpm. The car is right after full service - gearbox flush with filter, transfer box oil, rear diff oil, engine oil with ALL filters, spark plugs.... Here some videos of the noise.... It's hardy noticeable when in car with closed windows. It sounds like brakes, but depending on engine rpm? It does only in D not in R or Neutral and only when the car sits for a while... When going away from city it dissapear... While driving in the morning https://www.youtube.com/watch?v=p2zR...e_gdata_player When parking... https://www.youtube.com/watch?v=bMqTaGfUF5Y Thanks in advance... I just want to enjoy my new X5. Last edited by Zemi; 12-11-2013 at 11:46 AM. 
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#2
12-10-2013, 11:42 AM
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Where did you have the trans flush done? What fluid did they use?
__________________
Current Bimmer 2004 X5 4.4i Sterling Grey Sport/Premium Past Bimmers 1991 318I Alpine White 1995 740I Alpine White 1991 525I Schwartz 1998 323IS Scwartz 2004 330CI Cabrio Titanium Silver Metallic 1995 540I Schwartz 2000 Z4 3.0 Titanium Silver 2000 330ci Coupe Titanium Silver
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#4
12-10-2013, 01:23 PM
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Almost sounds like a bad bearing in a pulley. Pop the belt off and spin each pulley by hand. If it spins freely chances are its bad.
__________________
Current Bimmer 2004 X5 4.4i Sterling Grey Sport/Premium Past Bimmers 1991 318I Alpine White 1995 740I Alpine White 1991 525I Schwartz 1998 323IS Scwartz 2004 330CI Cabrio Titanium Silver Metallic 1995 540I Schwartz 2000 Z4 3.0 Titanium Silver 2000 330ci Coupe Titanium Silver
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#6
12-10-2013, 08:01 PM
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I had a failed bearing on one of the pulleys on my E39. Was super loud when cold. Once it warmed up it went away. Easy, cheap fix. (relative anyway)
__________________
2001 X5 4.4i Sport 2013 550i Xdrive M Sport 2000 528i E39 (Sold) Unleashed Air Racing 279 mph Best Average Speed
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#7
12-10-2013, 11:31 PM
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Idler or tensioner pulleys are easy to check as noted above. If it spins freely, without resistance, it's bad.
__________________
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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#8
12-11-2013, 08:19 AM
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My fan clutch sounded a hell of a lot like a bad water pump bearing when it was going bad.
__________________
2018 Ram 2500 6.7L Cummins 68RFE 19k miles -Bright White/Black - Big Horn Sport - Crew Cab Short Bed 2013 X5 35D (CEO's) - Born on 5/17/2013 - 82k miles - Alpine White/Cinnamon Brown/Premium Pkg, Sport Activity/Premium Pkg and Sound/20" Style 214/Running Boards
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#9
12-11-2013, 10:39 AM
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Depending on which engine he has, he may or may not have a fan clutch. I know my X5 has an electric fan.
__________________
Current Bimmer 2004 X5 4.4i Sterling Grey Sport/Premium Past Bimmers 1991 318I Alpine White 1995 740I Alpine White 1991 525I Schwartz 1998 323IS Scwartz 2004 330CI Cabrio Titanium Silver Metallic 1995 540I Schwartz 2000 Z4 3.0 Titanium Silver 2000 330ci Coupe Titanium Silver
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#10
12-11-2013, 11:40 AM
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Little update - the sound does not appear when the car is on jacks - only rear wheels spinning and it´s quiet so it have to be something with front drive... I changed transfer box oil aswell no change... Here is new video I took... WTF!!! It appear only when going forward with light acceleration...
https://www.youtube.com/watch?v=bMqTaGfUF5Y
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