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General E46 Forum
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Old 11-06-2012, 03:54 PM   #1
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Name This Oil Leak?

I know, I know, there are a gazillion posts trying to figure out where an oil leak is coming from. I havee looked at a bunch, but I'm not certain I can nail this down. Figured I'd post a few pics and see if anyone has any opinions.

It's leaking a pretty decent amount - I've lost more than a quart in the last couple of days.

First I checked the oil filter gasket and tightened it to rule that out, then I cleaned the underside of the engine with engine cleaner/degreaser and started it. within a few minutes, the leak started - it's coming down on the driver's side of the engine right near the front. You can see it clearly in the pics.

I did the vanos seals and the vgc about 5-6 months ago. I don't know if that is it, but I would not rule it out. The OFHG looks to be ok, but not positive. Any input would be greatly appreciated.
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Old 11-06-2012, 03:57 PM   #2
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Vanos oil line and OFHG. Change them both at the same time along with new crush washers. JMHO
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Old 11-06-2012, 04:16 PM   #3
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Agreed. When you get in there, you might also find leaks from the PS reservoir and feed/return hoses. You can replace the hoses or trim and re-clamp. Either way, not high $$$.
Engineers do it with a torque wrench
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Old 11-06-2012, 06:35 PM   #4
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Thanks guys - will pull it apart this week. Parts on order.
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Old 11-06-2012, 07:01 PM   #5
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Clean things up and look again in a few days just to confirm.
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