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#1
02-01-2008, 03:13 AM
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Oil Separator Valve DIY?
Has anyone done a DIY on checking, cleaning, repairing or replacing the oil separator valve? Are there current parts that are less prone to failure that can be retrofitted to earlier cars (like 2001)? What about this heater option that just came out from BMW?
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#3
02-01-2008, 08:53 AM
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Yes you can drive the car after the burp. I experience the burp every cold morning when I start the car. Just after you drive it for 30 minutes or so look under the hood and make sure that nothing has popped out of place or is leaking like the valve cover gasket. But I'm actually getting the oil seperator replaced today! Its at the shop, Already had my valve cover gasket replaced, it blew...That was a direct result of a severe burp one morning..
As far as the DIY. I know one member here has done it...I believe his name is lojack...GL.
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#4
02-01-2008, 09:56 AM
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Quote:
Why will replacing the oil separator make a difference - is the new one a different design? .....just curious
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#6
02-01-2008, 01:46 PM
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The burp if i'm not mistaken is a sort of grinding sound right after you start the car. Sounds like belts grinding, but its not..It only happens during cold weather starts. And when the car has been sitting in sub freezing temps for longer then 6 hours or so. One morning about a month ago, it was 8 degrees and my car had been sitting for 12 hours or so and I started it and it made a huge burp, more like a sneeze...Right at that moment my valve cover gasket blew. I didn't find out until I pulled over on the freeway with my car smoking profusely...that was not a good day.
 However, the oil seperator is known to fail in warm temps and climates too. It is not strictly related to cold weather only. It is just more likely to fail in cold weather..But I've never had the burp in warm temps... Last edited by primetime; 02-01-2008 at 01:53 PM.
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#7
02-01-2008, 02:14 PM
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#8
02-01-2008, 02:37 PM
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#9
02-01-2008, 10:05 AM
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Yes the new BMW part is a more updated version that will not have the same problems as the previous version. But if you're experiencing little symptoms like leaking valve cover gasket or rough burps when starting the car in cold weather. You definitely want to get the seperator at least checked out. Most likely there is condensation build up in the lines causing them to freeze..This is directly related to the oil seperator issue.
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#10
02-01-2008, 05:20 PM
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Just got word back from the shop...Oil seperator was toast..Along with a number of hoses that had leaks in them. They replaced all of them and the seperator. Going to pick it up in an hour...I already had the valve cover gasket replaced...Whew! Finally done with this issue!!
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