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E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

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  #1  
Old 07-21-2015, 09:22 AM
328i46 328i46 is offline
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Question Help me locate this oil leak please (VIDEO)



hey all i got a oil leak i cant find where its coming from somewhere around the oil filter it managed to bathe my alternator to the point it stopped working any ideas where it may be coming from much appreciated._a_
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  #2  
Old 07-21-2015, 10:10 AM
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MalibuMafiaV MalibuMafiaV is offline
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Mein Auto: E60 M5 & Stage 3 Audi S4
Oil filter housing gasket. And it looks like your power steering reservoir lines are also leaking which is very common. They tend to leak onto the alternator and destroy it. Much like yours did unfortunately sorry man.
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Last edited by MalibuMafiaV; 07-21-2015 at 10:11 AM.
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Old 07-21-2015, 04:09 PM
Alika808 Alika808 is offline
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Here is a DIY to replace of the oil filter housing gasket.
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Old 07-21-2015, 04:22 PM
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SilberVogel SilberVogel is offline
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Agree on the oil filter housing gasket/power steering diagnosis. If you're replacing the OFHG and the CCV is still original, I'd do that at the same time, as well. With the OFH out of the way, you'll have easier access to route and connect the CCV hoses. Climate and driving conditions factor in, but worth looking into replacing the CCV at 8+ years or so.
Here's a thread on E46Fanatics with some helpful info/links re: CCV and OFHG: http://forum.e46fanatics.com/showthread.php?t=1071842.
Links in this post under CCV and OFHG might also be useful to reference: http://www.bimmerfest.com/forums/sho...85&postcount=2.
The "while you're in there" approach can turn into the "if you give a mouse a cookie" approach sometimes, and when doing the OFHG, you could also do the VANOS oil line (#11361705532) along with four new crush washers (#32411093596). When doing the CCV, the throttle body, ICV, DISA, intake boots, etc. are also worth looking into if they need to be addressed.

Do you know the maintenance history of the vehicle? How many miles? Welcome to the forums.
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Last edited by SilberVogel; 07-21-2015 at 04:23 PM.
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Old 07-22-2015, 12:33 PM
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Dave 330i Dave 330i is offline
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While you are at the oil filter gasket, shell out $1250 and you won't have any aggravations at 158K miles...
3 breather hose, crankcase vent valve, oil separator hose, oil line, oil drain plug gasket, oil filter strand gasket expansion tank, cap, and hose, aux fan switch, fan shroud clamp, cabin filter, lower and upper hose, oil filter kit, motor oil (oil/ filter changed)
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Last edited by Dave 330i; 07-22-2015 at 12:37 PM.
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Old 07-22-2015, 02:22 PM
Alika808 Alika808 is offline
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Also add these two items 6 & 8 if you go under the intake manifold. For the long period of time and heat makes these brittle. See attachment
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