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2001 E39 525i mixing oil and water
12-08-2019, 10:59 AM
Post: #1
2001 E39 525i mixing oil and water
Hi Guys,

This morning while driving i noticed my car losing and gaining power, stopped at home, cheacked the oil and everything to find this
[Image: img-20190812-wa0006_9365024299.jpeg]

What would be the most likely cause , i have also found a couple of metal shavings in the oil filter which i replaced a couple of weeks ago

Many Thanks

current : 1992 bmw 525i
recent: 1988 merc 230e,opel astra 160ie
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12-08-2019, 11:14 AM
Post: #2
RE: 2001 E39 525i mixing oil and water
Overheated?

Blown head gasket?
dunno anymore

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2006 Audi A3 Sportsback 2.0T S-Tronic Ambition FRC ECU & S-TRONIC TUNED

(Ex BMW'S 2006 335i, 2006 X3 30d 2003 330i, 2002 325i 2000 540i, 1998 318i MS, 1992 325i MEX)
(NON BMW'S 2006 A4 AVANT, 2003 POLO 1.6, 2000 200 STI, 2000 RSI 20V, 1999 GTI, 1998 RSI 20V)
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12-08-2019, 02:39 PM
Post: #3
RE: 2001 E39 525i mixing oil and water
check the oil to water heat exchanger.

Gaskets go bad.........

this looks extreme
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12-08-2019, 05:48 PM
Post: #4
RE: 2001 E39 525i mixing oil and water
Cylinder head gasket.

The truth is incontrovertible, malice may attack it, ignorance may deride it, but in the end, there it is. ~ Winston Churchill
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13-08-2019, 12:46 PM
Post: #5
RE: 2001 E39 525i mixing oil and water
milkshake, Thats headgasket.

Metal Filings in oil filter, Rod bearings..

my 320i had this weird rattling noise that really did not sound like a bearing knock.

until the day it lost power and Struggled to stay running. BlueCry

When removed, bearings were beyond dead.

Present:
2001 E46 330i Touring (Facelifted)
1975 VW passat LS coupe (Resto Project toy)

Past:
2002 BMW E46 320i
2004 VW Mk1 Golf Velocity (1.4l)
2000 Honda Ballade (150i)
1975 Audi 80 (Baby 100)
1981 VW Mk1 Golf 2door Gti (2.1l Stroker)
1980 VW Mk1 Golf 2door L (1.3l)
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13-08-2019, 04:49 PM
Post: #6
RE: 2001 E39 525i mixing oil and water
Sorry buds. That looks like HG to me. Metal shavings is also bad news

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14-08-2019, 06:03 AM
Post: #7
RE: 2001 E39 525i mixing oil and water
it may or may not be mixing...hard to tell from that cap. Condensation on the oil cap can deceive sometimes
I'd drain the coolant and if its mixing then you'll not miss the oil in there for sure.
The metal shavings in your oil filter sound scary, and coupled with power loss and gain - sounds worrying
Is there smoke coming out of exhaust- what colour?
Usually a blown head gasket will cause a lot of smoking and power loss, plus overheating
Have this checked out by an experienced workshop asapomg waiting
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14-08-2019, 06:17 AM (This post was last modified: 14-08-2019 06:17 AM by Bone Head.)
Post: #8
RE: 2001 E39 525i mixing oil and water
1. It may or may not be mixing...hard to tell from that cap. Condensation on the oil cap can deceive sometimes - This is very true. Cars that stand for periods do have condensation.

2. Metal filling could be oil filter failure as well. not very common on automotive, more common on Agricultural machines.

Best is to have it checked out ASAP. It could even be engine or gearbox oil cooler failure. Had it on a C230 Auto many years back.

1. It may or may not be mixing...hard to tell from that cap. Condensation on the oil cap can deceive sometimes - This is very true. Cars that stand for periods do have condensation.

2. Metal filling could be oil filter failure as well. not very common on automotive, more common on Agricultural machines.

Best is to have it checked out ASAP. It could even be engine or gearbox oil cooler failure. Had it on a C230 Auto many years back.

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