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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Thu, Oct-25-2007, 02:16:00 PM   #41
jkalex05
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I just purchased my M3. However I burned about a half a quart to a quart inbetween 2000 miles. However whats weird is that it happened in a week. Because I had checked the oil level and it was fine and one day I turn on car and it takes a while to crank and when it finally does low oil light is on.

Check dipstick isn't even reading oil. After a couple of seconds it finally reads oil. Added a quart and its back at Max line, a tiny bit over.
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Old Sat, Dec-08-2007, 04:58:20 AM   #42
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remember that this engine has a sump system for the oil. 2 places where oil is stored. That means that you have to follow the procedure in the manual for checking the oil level or your readings could be way off. Make sure you run the engine for the specified time and shut it down and wait the specified time for the oil to settle a bit. Then measure oil level. Read your manual, it has very specific instructions for measuring the oil level.
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Old Sat, Dec-08-2007, 08:07:38 AM   #43
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Thats funny, my oil light has been coming on recently as well. As the cold weather hit, i noticed this. I have never had this problem before, and I put in a 1/2 litre and was back at max.

Now another month later and the light is back on. But here is the thing.

It doesnt always come on. like on the way to work, no light. On the way home at 9:00 pm the light comes on. now on the way to work I am moving pretty quickly and changing throttle, on the way home i use cruise control and then the light just pops on.

And sometimes it comes on about 10 minutes after starting the car, sometimes I am almost pulling into my apt 20 minutes later. I had also replaced my oil level sensor as i thought it was dead a while ago. turns out the OBDII fuse blew which makes an oil light and the oil temp sensor go dead. So on a side note, if your oil temp gauge goes out and you have an oil light, check the OBDII fuses first.

But I am going to check that oil separator, thanks for the tip.

although, this kind of consumption could be normal the way I drive though. Now that I am putting down 321RWHP, I cant keep my foot off of the gas. Sad part is that we pulled fuel in the tune for my daily driving conditions to give me better fuel economy which, if i use cruise control and dont speed, works great and yet i wouldnt know because i am flying all over the place. The car even has a different sound now, it has a howling sound to it like a 350Z on steroids, but it will always have a hint of rasp...

maybe i should take it easy and see if that helps, could just be serious blowby from driving so hard.
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Old Sat, Dec-08-2007, 11:16:21 AM   #44
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replacing the oil seperator seems to have solved my oil consumption issues.
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Old Sat, Dec-08-2007, 11:32:35 AM   #45
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If you are burning or leaking that much it's not normal.

If it was my car and no external leaks, I would look at changing the valve seals. It's the first thing that goes on abused or high milage vehicles. On the sevarity you would or would not see smoke from the tail pipe or oil on the spark plugs. GL.

Also, all great engines should burn a little oil.
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Old Tue, Jan-08-2008, 07:08:29 AM   #46
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Not that I can confirm this is a fix for all, but the oil separator seemed to be a bit gummed up in my 55K car so I replaced it with a lower mileage one from a wrecked car I had access to. I no longer had noticable consumption.

Another definite factor (at least with my car) was cold weather. In the cold months (yes even in SoCal), the car seemed to consume more oil.

And as someone else stated, check the oil about one minute after having run your engine.
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Old Tue, Jan-08-2008, 10:59:40 PM   #47
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It's not normal for M3s to burn oil. You should have the car checked.
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Old Wed, Jan-09-2008, 02:07:07 AM   #48
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Does not burn oil with 72996-very hard miles......
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Old Sat, Oct-31-2009, 07:56:35 PM   #49
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Quote:
Originally Posted by Serious View Post
replacing the oil seperator seems to have solved my oil consumption issues.
Hate to dig this up but any more info on the oil separator? I burn a fair amount of oil if car hangs in higher revs(driving event).
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Old Sat, Nov-07-2009, 12:02:32 AM   #50
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'06 M3 Coupe 38,000 miles. Uses no oil between changes.
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Discussing s54 oil consumption in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)