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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 |
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#1
11-17-2012, 10:32 AM
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Engine screech at start up
The problem started yesterday morning as when I started it up I got this horrible screech from the front of the engine any help is greatly appreciated.
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"So what does that M/S stand for?" "It stands for manual" "And the S?" "...Swagger" 2003 525i 2011 535xi 
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#2
11-17-2012, 10:53 AM
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Sounds like a bad bearing in an idler, or one of the accessories, or a worn-out fan clutch. Don't drive it until it's fixed. The bearing could seize and cause more damage.
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 Ed in San Jose '97 540i 6 speed aspensilber over aubergine leather. Build date 3/97. Golden Gate Chapter BMW CCA Nr 62319.
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#3
11-17-2012, 11:06 AM
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I'm replacing the fan clutch today to see if thats it
__________________
"So what does that M/S stand for?" "It stands for manual" "And the S?" "...Swagger" 2003 525i 2011 535xi
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#4
11-17-2012, 12:45 PM
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Be sure to examine the idler wheels and accessory bearings by spinning them, looking for noise.
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Ed in San Jose '97 540i 6 speed aspensilber over aubergine leather. Build date 3/97. Golden Gate Chapter BMW CCA Nr 62319.
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#5
11-17-2012, 03:02 PM
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i doubt its the fan clutch.suspect the water pump.
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#6
11-17-2012, 03:21 PM
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take the belt off and see how all the pulleys turn.
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ESS Tuning m60 version software m60 intake manifold a.f.e. c.a.i. 3" obx catback full powerflex urethane setup 545 ssk cdv delete m5 rear sway bar M5 chassis rods M5 3.15 lsd Bc-r coilovers w/ swift springs Akebono=suck ss braided brake lines coming soon: Jb lwfw 
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#7
11-19-2012, 12:36 PM
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Check this out:
- How to diagnose noises coming from the drive belt system (1)
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Note: Your mission, should you decide to accept it, is to 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, in seconds!
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#8
11-19-2012, 03:24 PM
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Pulley b in the attached picture is making a odd noise
Also how do I get the pulley right above it off as its in the way of getting the noisy pulley off. Here's a vid too.
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"So what does that M/S stand for?" "It stands for manual" "And the S?" "...Swagger" 2003 525i 2011 535xi Last edited by rubberducky203; 11-19-2012 at 03:38 PM.
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