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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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  #26  
Old 10-09-2012, 09:16 AM
cn90 cn90 is offline
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Location: Omaha NE
 
Join Date: Mar 2006
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Mein Auto: 1998 528i 5-sp 103K miles
Also,

The M60 engines suffer from this problem too. Here is the M60 oil pump bolts coming loose:
http://forums.bimmerforums.com/forum....php?t=1690371

M62:
http://forums.bimmerforums.com/forum....php?t=1846995

http://www.bimmerfest.com/forums/sho...d.php?t=399352
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  #27  
Old 10-09-2012, 10:18 AM
Al's540i's Avatar
Al's540i Al's540i is offline
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Mein Auto: 2000 BMW 540i
Damn, I replaced the oil pan gasket like maybe 25k miles ago too.....Hate to do this again. :-(

Good news is I went to run some errands at lunch and I didn't get the warnings again. I also checked my oil level and it's dead on. Also, no puddles under car.
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  #28  
Old 10-09-2012, 11:06 AM
cn90 cn90 is offline
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Location: Omaha NE
 
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Mein Auto: 1998 528i 5-sp 103K miles
Al,

A loose bolt has nothing to do with oil level and puddles on the ground.

Loose bolts ---> Loose Oil Pump ---> not enough oil pressure ---> dash oil pressure light.

Checking the dipstick and the ground puddle (if any) has nothing to do with this issue of loose bolts.
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  #29  
Old 10-09-2012, 06:52 PM
josemedeiros007 josemedeiros007 is offline
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Mein Auto: 1998 528i 4Dr
As an engine wears and the clearances increase, oil pressure will drop. Increasing the viscosity to a thicker weight oil, such as Mobile 1 synthetic, 15w50 should help, assuming that the oil pump is not the culprit.
http://www.mobiloil.com/USA-English/...duct_Guide.pdf

A clogged oil pick up screen due to sludge or debris will also starve the oil pump, and reduce oil flow, and or damage the motor. I would try to desludge your engine first. Use a product like Seafoam or B12 Chemtool in your engine oil prior to an oil change. Bavauto also sells a Luqui Molly Engine Flush and cleaning kit, with fuel Injector Cleaner that they state is very effective.http://blog.bavauto.com/12170/bmw-an...nd-protection/

Filter mag, makes a oil filter magnet to collect steel particles, http://www.shopfiltermag.com/. Although this is designed for metal canister filters, and uses magnetism to attach, us BMW owners could probably adapt this to our Plastic Oil Filter Housing by using plastic TieWraps to attach the magnet, I am sure this much more effective then a magnetized oil drain plug.

Last edited by josemedeiros007; 10-09-2012 at 06:53 PM.
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