Home Forums Articles How To's FAQ Register
Go Back   Xoutpost.com > BMW SAV Forums > X5 (E53) Forum
Fluid Motor Union
User Name
Password
Member List Premier Membership Search Today's Posts Mark Forums Read

Xoutpost server transfer and maintenance is occurring....
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management


Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 06-05-2017, 06:50 PM
kvc kvc is offline
Member
 
Join Date: Mar 2015
Location: Western Australia
Posts: 364
kvc is on a distinguished road
Pulleys replacement (accessories, a/c and idler)

Hi all,
Recently, upon cold start, I noticed a slight squeaking noise in the engine bay. It settled down after about 1 minute, but the next time I used the vehicle (several days later) it seemed to be a bit louder and took longer to go away. These symptoms started about 6 weeks ago as a slight squeak, but more recently (yesterday) has become louder and continues now for a while (3 minutes or longer) before disappearing. I don't drive the X5 daily (once a week at the most) and this all started after I last serviced it and de-greased the engine with a spray pack and hosed it off. I assume it's one of the pulleys - a/c tensioner, accessories tensioner or idler. I won't know which one it is until I take everything apart and since the vehicle is 11 years old, I thought it may be time to replace all 3, along with fitting new belts while I'm in there.
I'm looking for a heads-up from anyone who's done this: hints, part numbers etc. 2006 N-62 with 149,000 kms on the clock.
Should I be addressing anything else while I have things apart, like maybe the water pump? The only component that's been replaced (to the best of my knowledge) is the alternator - everything else is original, so I believe.
I had planned to use my much loved X5 to visit family this week in the city (900 km round trip) but am apprehensive now, not knowing if this could result in me becoming stranded on the side of the road and I must travel in some remote areas with no mobile phone reception ... advice readily accepted and appreciated.
__________________
08/06 build 4.4i Stirling Grey over black
Reply With Quote

Sponsored Links

  #2  
Old 06-05-2017, 07:25 PM
Member
 
Join Date: Jul 2016
Location: Menlo Park, CA
Posts: 1,009
Fifty150hs is on a distinguished road
Quote:
Originally Posted by kvc View Post
Hi all,
Recently, upon cold start, I noticed a slight squeaking noise in the engine bay. It settled down after about 1 minute, but the next time I used the vehicle (several days later) it seemed to be a bit louder and took longer to go away. These symptoms started about 6 weeks ago as a slight squeak, but more recently (yesterday) has become louder and continues now for a while (3 minutes or longer) before disappearing. I don't drive the X5 daily (once a week at the most) and this all started after I last serviced it and de-greased the engine with a spray pack and hosed it off. I assume it's one of the pulleys - a/c tensioner, accessories tensioner or idler. I won't know which one it is until I take everything apart and since the vehicle is 11 years old, I thought it may be time to replace all 3, along with fitting new belts while I'm in there.
I'm looking for a heads-up from anyone who's done this: hints, part numbers etc. 2006 N-62 with 149,000 kms on the clock.
Should I be addressing anything else while I have things apart, like maybe the water pump? The only component that's been replaced (to the best of my knowledge) is the alternator - everything else is original, so I believe.
I had planned to use my much loved X5 to visit family this week in the city (900 km round trip) but am apprehensive now, not knowing if this could result in me becoming stranded on the side of the road and I must travel in some remote areas with no mobile phone reception ... advice readily accepted and appreciated.
I was able to pin point the location of the same kind of noise on mine with an automotive stethoscope. It allows you to get very close and directional so you can isolate the source.
Reply With Quote
  #3  
Old 06-05-2017, 08:13 PM
kvc kvc is offline
Member
 
Join Date: Mar 2015
Location: Western Australia
Posts: 364
kvc is on a distinguished road
Quote:
Originally Posted by Fifty150hs View Post
I was able to pin point the location of the same kind of noise on mine with an automotive stethoscope. It allows you to get very close and directional so you can isolate the source.
Very good advice. I'll definitely invest in one this week to see if I can isolate which pulley is the culprit.
__________________
08/06 build 4.4i Stirling Grey over black
Reply With Quote
  #4  
Old 06-07-2017, 05:25 PM
kvc kvc is offline
Member
 
Join Date: Mar 2015
Location: Western Australia
Posts: 364
kvc is on a distinguished road
Do I need to remove the thermo-fan and/or drop the belly-pan to access the pulleys - looks very tight in there...
Can anyone give me a bit of guidance, as I don't have a local 'indy' to help, so must attack this job myself. TIA.
__________________
08/06 build 4.4i Stirling Grey over black
Reply With Quote
  #5  
Old 06-07-2017, 08:25 PM
Member
 
Join Date: Jun 2013
Location: Virigina, USA
Posts: 2,065
StephenVA is on a distinguished road
Drop the belly pan so that way you will have access top and bottom to find the one(s) that are the issue. Personally I would replace them all and install new belts as they have serviced their useful service life
__________________

2005 X5 4.8IS
The Blue ones are always FASTER....

Current Garage:
2005 X5 4.8is
2002 M5 TiSilver
2003 525iT
1998 528i
Former Garage Stable Highlights
2004 325XiT Sport
1973 De Tomaso Pantera, L Model
1970 Dodge Challenger T/A 4 sp Alpine White
1970 Dodge Challenger T/A 4 sp GoManGo Green
1971 Dart Sport, “Dart Light” package
1969 Road Runner 383
1968 Ply Barracuda 340S FB Sea-foam Green
Reply With Quote
  #6  
Old 06-08-2017, 12:24 AM
kvc kvc is offline
Member
 
Join Date: Mar 2015
Location: Western Australia
Posts: 364
kvc is on a distinguished road
Quote:
Originally Posted by StephenVA View Post
Drop the belly pan so that way you will have access top and bottom to find the one(s) that are the issue. Personally I would replace them all and install new belts as they have serviced their useful service life
Thanks for the advice StephenVA - given the extremely tight working area, I figured the only way to attack the job was from underneath....

I've ordered all 3 OEM pulleys along with new belts from BMA in the states (much cheaper than prices here in Aus). Can I re-use the belly pan bolts or are these a 'one time' use item?
__________________
08/06 build 4.4i Stirling Grey over black
Reply With Quote
  #7  
Old 06-08-2017, 12:52 AM
Member
 
Join Date: Jul 2016
Location: Menlo Park, CA
Posts: 1,009
Fifty150hs is on a distinguished road
Quote:
Originally Posted by kvc View Post
Thanks for the advice StephenVA - given the extremely tight working area, I figured the only way to attack the job was from underneath....

I've ordered all 3 OEM pulleys along with new belts from BMA in the states (much cheaper than prices here in Aus). Can I re-use the belly pan bolts or are these a 'one time' use item?
Reuse of the pan bolts is the subject of major debate on these boards and others. You can reuse them, but the book says not to. Suggest you get the Bentley manual as there are very specific tightening procedures for these bolts.

Also, it's not really necessary to remove the pan to do the work, only the plastic shield between the bumper and pan. Removing the pan doesn't actually give you any more access.
Reply With Quote
  #8  
Old 06-08-2017, 07:37 AM
Member
 
Join Date: Aug 2013
Location: james island, sc
Posts: 322
stackz is on a distinguished road
I've had the belly pan off my x5 8 or 9 times and re-use the bolts each time. these are not under severe duty or torque load, I cannot imagine why they would fail? they are no different from any other skid pad bolt....
Reply With Quote
  #9  
Old 06-08-2017, 08:08 AM
wpoll's Avatar
Member
 
Join Date: Sep 2015
Location: South Island, New Zealand
Posts: 2,726
wpoll will become famous soon enough
Quote:
Originally Posted by stackz View Post
I've had the belly pan off my x5 8 or 9 times and re-use the bolts each time. these are not under severe duty or torque load, I cannot imagine why they would fail? they are no different from any other skid pad bolt....
The skid plate is a stressed part of the lower sub-frame..... It helps the sub-frame resist twisting. Kinda like a diagonal brace in the wall framing in a house.

The bolts are under considerable load, hence their class and torque.

Driving without this plate secured could result in cracked welds in the tubular sub-frame.

But yeah, I've re-used the bolts too...
__________________
Wayne
2005 BMW X5 3.0d (b 02/05)
2001 BMW F650GS Dakar (b 06/01)
Reply With Quote
  #10  
Old 06-08-2017, 06:43 PM
Member
 
Join Date: Jun 2013
Location: Virigina, USA
Posts: 2,065
StephenVA is on a distinguished road
The plastic front facing underbody pan located under the engine needs to be removed to access the belt drive. No need to remove the metal pan with the bolts that is being discussed above that is located further back under the transfer case.
__________________

2005 X5 4.8IS
The Blue ones are always FASTER....

Current Garage:
2005 X5 4.8is
2002 M5 TiSilver
2003 525iT
1998 528i
Former Garage Stable Highlights
2004 325XiT Sport
1973 De Tomaso Pantera, L Model
1970 Dodge Challenger T/A 4 sp Alpine White
1970 Dodge Challenger T/A 4 sp GoManGo Green
1971 Dart Sport, “Dart Light” package
1969 Road Runner 383
1968 Ply Barracuda 340S FB Sea-foam Green

Last edited by StephenVA; 06-09-2017 at 09:02 AM.
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On





All times are GMT -4. The time now is 10:55 PM.
vBulletin, Copyright 2019, Jelsoft Enterprises Ltd. SEO by vBSEO 3.6.0
© 2017 Xoutpost.com. All rights reserved. Xoutpost.com is a private enthusiast site not associated with BMW AG.
The BMW name, marks, M stripe logo, and Roundel logo as well as X3, X5 and X6 designations used in the pages of this Web Site are the property of BMW AG.
This web site is not sponsored or affiliated in any way with BMW AG or any of its subsidiaries.