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3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

 
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#1 (permalink) Old 10-31-2004, 04:03 PM
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Can't believe it...changed my oil and filter yesterday. No big deal, right? Well, I went to double-check the oil level today after taking a couple of 2-3mi. trips yesterday to make sure that I had topped off the oil correctly.

Well, the oils topped off...only problem is, I forgot to put the oil filler cap back on! Now it's somewhere on the road. Bavauto just got an extra $5 for a new cap that I hadn't planned on buying.

Live and learn.


Odd thing though, I hadn't noticed any change in performance. I've read some posts where people note decreased performance w/oil filler cap off.

<span style='color:green'>1994 325i </span>- - - 75,000 mi.
No mods - - - very happy as is!
<span style='color:green'>1995 525i </span>- - - 154,000 mi.
No squeaks or rattles... unreal!
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#2 (permalink) Old 10-31-2004, 05:40 PM
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I'm curious... there was no Check Engine light on ??
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#3 (permalink) Old 10-31-2004, 06:17 PM
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I don't think there's a sensor to even check for the oil cap...


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#4 (permalink) Old 10-31-2004, 06:56 PM
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funny, i know that if you dont have your fuel cap on , it will give an engine warning light , so im surprised that there is no light when there is no cap. but i suppose its because there is no vacumm or presure related things that go on in the crank case

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#5 (permalink) Old 10-31-2004, 08:44 PM
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Quote:
Originally posted by Henri@Oct 31 2004, 05:40 PM
I'm curious... there was no Check Engine light on ??
[snapback]221855[/snapback]

Interesting that it didn't come on. I know of a few Volvos that won't even start without the oil filler cap on. (has to do with keeping the system pressurized)

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#6 (permalink) Old 10-31-2004, 09:47 PM
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Yeah, most cars will not run without the cap on. I guess BMW doesn't route their vacuum lines that way.

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#7 (permalink) Old 10-31-2004, 10:54 PM
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so is there oil all over the engine bay? i remember when i forgot to put the cap on for my auntie's toyota i went to check out the oil level when we got to mcdonalds and there was oil everywhere so i covered it up and told her i wanted to hose down the engine bay to make sure it was clean :P

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#8 (permalink) Old 11-01-2004, 12:03 PM
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No check engine light came on...I was suprised.

Fortunately, there was only a couple of small splashes of oil on the hood insulation that fairly easily was soaked up by a paper towel...yeah, I thought there would be more oil all over the place.

I thought I read a post sometime ago that when people took off their oil filler cap when tuning a car, the revs went way down or something similar to that because of the vacuum runing through the engine. Odd thing was that I didn't notice any difference in the way the car ran!

<span style='color:green'>1994 325i </span>- - - 75,000 mi.
No mods - - - very happy as is!
<span style='color:green'>1995 525i </span>- - - 154,000 mi.
No squeaks or rattles... unreal!
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#9 (permalink) Old 11-01-2004, 05:39 PM
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Hmmm... might have to call a tech friend of mine.. but I could have swore that the oil system was pressurized.... due to the seals and such... but maybe its not a localy pressurized system.... hmm interesting.. I will look in to this..

Lata,

Les


1997 E36 M3 1990 E30 325i
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#10 (permalink) Old 11-01-2004, 11:13 PM
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one time my brother in law changed the oil on his mits. and just drained out all the transmission fluid and put in way to much oil, haha
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