Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E39 (1997 - 2003)

E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

Reply
 
Thread Tools Display Modes
  #1  
Old 08-16-2012, 10:51 AM
e39540iv8 e39540iv8 is offline
Officially Welcomed to the 'Fest
Location: Australia
 
Join Date: May 2012
Posts: 141
Mein Auto: 2000 BMW 540iA
DIY Alternator Bearing Replacement

If the alternator bearing is causing a belt noise issue I'm pretty sure the alternator doesn't need to be replaced only taken apart and the bearings replaced. I say this because parts are so expensive and with some DIY costs can be saved. Check this video out, I know it's an M5 but you get the idea.

Check out around 22:00

Reply With Quote
Ads by Google
  #2  
Old 08-16-2012, 11:42 AM
mbell666 mbell666 is offline
Officially Welcomed to the 'Fest
Location: Austin, TX
 
Join Date: Jul 2012
Posts: 220
Mein Auto: e39 2002 540i6
Later 540i have a water cooled alternator that is different to the alternator shown. It probably possible to just replace the bearing in that aswell, but probably trickier and more expensive. Also mean messing with coolant system.
__________________
An e39 is like a beautiful wife, needs constant attention, lots of money, lets you down at the worse times but you’d never be without it.
Reply With Quote
  #3  
Old 08-16-2012, 01:16 PM
e39540iv8 e39540iv8 is offline
Officially Welcomed to the 'Fest
Location: Australia
 
Join Date: May 2012
Posts: 141
Mein Auto: 2000 BMW 540iA
Quote:
Originally Posted by mbell666 View Post
Later 540i have a water cooled alternator that is different to the alternator shown. It probably possible to just replace the bearing in that aswell, but probably trickier and more expensive. Also mean messing with coolant system.
Aww I didn't know that. God this car has turned out to be a nightmare for me. Anyways it's a cool video. I like how cheap cars are in the UK, he bought an M5 for less than what I bought a 540i here
Reply With Quote
  #4  
Old 08-16-2012, 01:19 PM
540indiana's Avatar
540indiana 540indiana is offline
Officially Welcomed to the 'Fest
Location: Beech Grove Indiana
 
Join Date: Oct 2010
Posts: 1,723
Mein Auto: 2000 540i Sport
Mine belt is slipping too. Also noticed my alternator moaning.. All because of procrastination by not fixing the ps leak..
__________________
Reply With Quote
  #5  
Old 08-16-2012, 02:16 PM
mbell666 mbell666 is offline
Officially Welcomed to the 'Fest
Location: Austin, TX
 
Join Date: Jul 2012
Posts: 220
Mein Auto: e39 2002 540i6
Quote:
Originally Posted by e39540iv8 View Post
Aww I didn't know that. God this car has turned out to be a nightmare for me. Anyways it's a cool video. I like how cheap cars are in the UK, he bought an M5 for less than what I bought a 540i here
When petrol (gas) is ~$8.50 a gallon, road tax is about $800+ and insurance is about 5-10% of your income cars like this don't cost a lot to buy. I could have bought my 540i for half the price or less in the UK.

Generally cars over there have lot lower second hand values, you can get a very usable car for $600 ish. I think a lot of it is because they are right hand drive so limit market and they can't be export easily, unlike other bits Europe.
__________________
An e39 is like a beautiful wife, needs constant attention, lots of money, lets you down at the worse times but you’d never be without it.
Reply With Quote
  #6  
Old 08-16-2012, 03:06 PM
bluebee's Avatar
bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
 
Join Date: Mar 2008
Posts: 21,106
Mein Auto: 02 BMW 525i M54 auto 130K
This may be useful ...

- How to test your generator (1) & how to determine exactly what alternator you have (1) & a DIY for replacing the E39 I6 alternator (1) (2) (3) (4) (5) or E39 V8 alternator (1) (2) (3) (4) & why you want to clean out the air-cooled alternator air duct & cooling vents (1) (2) (1) (2) & why rebuilding an alternator is preferable to replacing (1) & cn90 DIYs for rebuilding a 1998 air-cooled BMW Bosch alternator (1) (2) or his VW Bosch alternator (1) & cdawg246's quest for materials for a Bosch water cooled alternator rebuild (1) & Aioros' 1999 Valeo Alternator rebuild DIY (1) and his quest for materials (1) & Cn90's explanation of where to get hard-to-get alternator rebuild parts (1) & how to tell from the part number if a replacement alternator is actually rebuilt "by" Bosch (1) & a DIY for replacing the brushes in an (Audi) Valeo alternator (1) & a Bosch alternator bearing replacement from a 1997 MB S600 (1) & from a Range Rover (1).
__________________
Each repair should invariably add to our knowledge base by the process of inexorable incrementalism.
Your job, in return, is to read the suggested threads, where the best people will always add value to those threads, either by pictures or by descriptions, so the next person with the same problem stands on your shoulders.
See also: E39 Bestlinks & How to easily find what you need
Reply With Quote
  #7  
Old 08-17-2012, 07:54 AM
e39540iv8 e39540iv8 is offline
Officially Welcomed to the 'Fest
Location: Australia
 
Join Date: May 2012
Posts: 141
Mein Auto: 2000 BMW 540iA
Quote:
Originally Posted by 540indiana View Post
Mine belt is slipping too. Also noticed my alternator moaning.. All because of procrastination by not fixing the ps leak..
What's the PS leak?
Reply With Quote
  #8  
Old 08-17-2012, 08:03 AM
dvsgene dvsgene is offline
Search, Read, THEN Ask
Location: "Empire State" of Mind
 
Join Date: Sep 2002
Posts: 2,614
Mein Auto: 98 540i M62 3.15
Quote:
Originally Posted by e39540iv8 View Post
What's the PS leak?
(P)ower (S)teering Leak. Two hoses above the alternator leading from the Power steering reservoir.
Reply With Quote
  #9  
Old 08-17-2012, 10:19 AM
bluebee's Avatar
bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
 
Join Date: Mar 2008
Posts: 21,106
Mein Auto: 02 BMW 525i M54 auto 130K
Quote:
Originally Posted by e39540iv8 View Post
What's the PS leak?
+1 to what dvsgene said.

I went to the bestlinks and typed /power steering F3 and found this, among others:

- Why you want to fix the power steering hose drip onto the alternator (1) (2) (3)
__________________
Each repair should invariably add to our knowledge base by the process of inexorable incrementalism.
Your job, in return, is to read the suggested threads, where the best people will always add value to those threads, either by pictures or by descriptions, so the next person with the same problem stands on your shoulders.
See also: E39 Bestlinks & How to easily find what you need
Reply With Quote
  #10  
Old 09-03-2012, 06:52 PM
Pksnake Pksnake is offline
Registered User
Location: Pa
 
Join Date: Aug 2012
Posts: 6
Mein Auto: 2002 540i
Water cooled alternator

Hello all, I'm new to bimmerfest. I've owned my 02 540i for 2 yrs. my bearings in the alternator sound shot. It is water cooled. I'm looking for info on how this is removed. It does not look like a usual alternator. Any advice
Reply With Quote
  #11  
Old 09-03-2012, 06:55 PM
dvsgene dvsgene is offline
Search, Read, THEN Ask
Location: "Empire State" of Mind
 
Join Date: Sep 2002
Posts: 2,614
Mein Auto: 98 540i M62 3.15
Quote:
Originally Posted by Pksnake View Post
Hello all, I'm new to bimmerfest. I've owned my 02 540i for 2 yrs. my bearings in the alternator sound shot. It is water cooled. I'm looking for info on how this is removed. It does not look like a usual alternator. Any advice
Welcome to the forum.

Links in my signature is a great start to navigate the forum and find the various DIY write-ups.

If you still can't find it, let us know and someone will guide you the first few times.
Reply With Quote
  #12  
Old 09-03-2012, 07:09 PM
pleiades pleiades is offline
Officially Welcomed to the 'Fest
Location: Oregon
 
Join Date: Jun 2010
Posts: 2,221
Mein Auto: '99 528i, M52TU w/stick
Quote:
Originally Posted by Pksnake View Post
Hello all, I'm new to bimmerfest. I've owned my 02 540i for 2 yrs. my bearings in the alternator sound shot. It is water cooled. I'm looking for info on how this is removed. It does not look like a usual alternator. Any advice
Here's the BMW TIS procedure (scroll halfway down the page...)

http://tis.spaghetticoder.org/s/view.pl?1/00/13/25
Reply With Quote
  #13  
Old 09-04-2012, 06:35 PM
Pksnake Pksnake is offline
Registered User
Location: Pa
 
Join Date: Aug 2012
Posts: 6
Mein Auto: 2002 540i
Thanks for the info. It will take me a bit to become familiar with the site. I am having a bear of a time of removing the Torx screw from the tensioner pulley. Any suggestions? The Torx pattern is becoming stripped.
Reply With Quote
  #14  
Old 09-04-2012, 06:45 PM
dvsgene dvsgene is offline
Search, Read, THEN Ask
Location: "Empire State" of Mind
 
Join Date: Sep 2002
Posts: 2,614
Mein Auto: 98 540i M62 3.15
Quote:
Originally Posted by Pksnake View Post
Thanks for the info. It will take me a bit to become familiar with the site. I am having a bear of a time of removing the Torx screw from the tensioner pulley. Any suggestions? The Torx pattern is becoming stripped.
Unless the bolt is seized, it really shouldn't take much effort to remove. IIRC. it is a T50 torx head. When using a smaller size Torx, they tend to strip.
Reply With Quote
  #15  
Old 09-05-2012, 07:00 AM
caryalon caryalon is offline
Officially Welcomed to the 'Fest
Location: New York
 
Join Date: Jun 2010
Posts: 227
Mein Auto: 2002 530i, 2001 325i
You don't remove the Torx screw from the tensioner pulley. You rotate the tensioner pulley (clockwise) to remove tension from the belt so you can slip the belt off, then (slowly) release the pulley to rest. When you install the belt, you do the same.
Reply With Quote
  #16  
Old 09-05-2012, 07:06 AM
dvsgene dvsgene is offline
Search, Read, THEN Ask
Location: "Empire State" of Mind
 
Join Date: Sep 2002
Posts: 2,614
Mein Auto: 98 540i M62 3.15
Quote:
Originally Posted by caryalon View Post
You don't remove the Torx screw from the tensioner pulley.
While this may be true on the I6-528i, this is not true on the V8-540i or the I6-530i.

I've removed ALL 3 pulleys before when I replaced them with DAYCO rebranded INA pulleys/bearings for $8ea. Saving close to $100 from having to buy the whole assembly. Plus the replacement DAYCO was made of steel not polymer plastic.
Reply With Quote
  #17  
Old 09-05-2012, 07:37 AM
caryalon caryalon is offline
Officially Welcomed to the 'Fest
Location: New York
 
Join Date: Jun 2010
Posts: 227
Mein Auto: 2002 530i, 2001 325i
Quote:
Originally Posted by dvsgene View Post
While this may be true on the I6-528i, this is not true on the V8-540i or the I6-530i.
I have no personal experience with the V8, but the 2.5 and 3 liter I6 engines both use a tensioner pulley as I described. I guess I shouldn't be surprised that the V8 would be different.

Perhaps I misunderstood - I wasn't talking about replacing the tensioner pulley itself, just using it to remove/replace the belt.

Do you have DAYCO part numbers? That would be good to file away for future use... Thanks!

Last edited by caryalon; 09-05-2012 at 07:39 AM.
Reply With Quote
  #18  
Old 09-05-2012, 07:52 PM
Pksnake Pksnake is offline
Registered User
Location: Pa
 
Join Date: Aug 2012
Posts: 6
Mein Auto: 2002 540i
I haven't had success removing the t50 bolt from the pulley. I'm afraid to report donkey, this would be me, has officially stripped the torx. I'm thinking of cutting the plastic pulley off and place vice grips on the outer diameter of the t50 bolt and whack the crap out of it to try and crack it loose.
Reply With Quote
  #19  
Old 10-01-2012, 07:10 PM
Pksnake Pksnake is offline
Registered User
Location: Pa
 
Join Date: Aug 2012
Posts: 6
Mein Auto: 2002 540i
Update... A few weeks ago I had a buddy weld a nut to the Torx bolt head. This worked well. The bolt loosened and the alt replacement went well.
Reply With Quote
Reply

Bookmarks


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E39 (1997 - 2003)
Today's Posts Search
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 On



Forum Jump


All times are GMT -7. The time now is 12:12 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
© 2001-2011 performanceIX, Inc. All Rights Reserved .: guidelines .:. privacy .:. terms