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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E36 (1991 - 1999)

E36 (1991 - 1999)
The E36 chassis 3-Series BMW was a huge hit among driving enthusiasts from the first moment the car hit the pavement. The E36 won numerous awards over the years it was produced and is still a favorite of many BMW enthusiasts to this day! -- View the E36 Wiki

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  #1  
Old 11-07-2008, 05:58 PM
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Nline6 Nline6 is offline
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how do I know if my Vanos is working properly?

I dont know if my Vanos is working as it should. it sounds like most do at 150k (marbles in a can) but I heard that this is normal (kind of) anyways my question is that sometimes it seems as if i have a lot of low end power but no top end, and some times its fine all threw the powerband. my guess was that my vanos system is not working as it should and it isnt engaging the other lobe on the camshaft when I get to the engine speed up to where it should engage. 3-4k rpms I think I am not sure. is there anyway to test this to see if it is working ok? I know that on hondas Vtec you can take the solenoid apart and clean the oil screen out and some times this helps with the flow of the oil. any ideas would be appreciated thanks
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  #2  
Old 11-07-2008, 06:25 PM
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edgar620 edgar620 is offline
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Jsut take it apart and replace the seals.
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  #3  
Old 11-07-2008, 07:56 PM
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Nline6 Nline6 is offline
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what would I be looking for when I take it apart?
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  #4  
Old 11-07-2008, 10:42 PM
pinkslip1 pinkslip1 is offline
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check out this site it helped me alot.http://www.beisansystems.com/procedu..._procedure.htm
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  #5  
Old 11-07-2008, 10:55 PM
strogg strogg is offline
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good site.

or a really quick way for confirmation if you are observant is to put the car in second and floor it. at around 3500 rpm, you should feel a vtec-type surge. for double confirmation, you can record it and play it back. you should hear some slight hesitation at that rpm band and then it'll fly. here's an exaggerated form of the weird hesitation i'm talking about http://muahahahahaha.com/takeoff.mp3
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  #6  
Old 11-08-2008, 05:20 AM
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Nline6 Nline6 is offline
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ive owned a integra GSR and its feels nothing like V-tec, I will look into it some more when I get home from work. thanks alot guys
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  #7  
Old 11-08-2008, 09:23 AM
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Quote:
Originally Posted by Nline6 View Post
how do I know if my Vanos is working properly?
Look on the front of your car, near where the hood and grilles meet. Look in the middle of the car, at the leading edge of your hood. You are looking for a plastic round circle. It looks like this....




If you see one of these on the hood of your car, there is a pretty good chance that your Vanos is not working properly. I recommend either replacing the seals yourself or swapping in a reman unit from MrVanos.com
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  #8  
Old 11-08-2008, 03:53 PM
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Nline6 Nline6 is offline
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that was priceless. lol its just weird every morning when I drive to work, as soon as the car reaches normal operating temp I turn left from one road to another long strait country road and I get on it from 1st to 3rd and it just feels so quick and responsive. yet when I drive it home it doesn't feel the same. but every morning on that drive to work it runs like a champ. It just seems weird that it works sometimes and sometimes it doesnt, and I am not positive if my Vanos is the culprit, it was just a thought.
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  #9  
Old 11-08-2008, 08:13 PM
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PhilipWOT PhilipWOT is offline
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Interesting. Is there a significant difference in ambient air temp between your two drives?
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  #10  
Old 11-09-2008, 12:18 PM
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that was what I was thinking, but no nothing to dramatic, maybe like 10-15 degrees difference. and the Strange thing is it sits in my driveway all night and it sits in the parking lot at my work for 8 hours, it just seems odd to me, maybe the issue is in my head??
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  #11  
Old 11-09-2008, 12:21 PM
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Quote:
Originally Posted by PhilipWOT View Post
Look on the front of your car, near where the hood and grilles meet. Look in the middle of the car, at the leading edge of your hood. You are looking for a plastic round circle. It looks like this....




If you see one of these on the hood of your car, there is a pretty good chance that your Vanos is not working properly. I recommend either replacing the seals yourself or swapping in a reman unit from MrVanos.com
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  #12  
Old 11-09-2008, 12:28 PM
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diptenkrom diptenkrom is offline
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i know i am going to sound like an idiot, but was this standard in the 3 series? how do i know if my car has it?

95 325i auto
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  #13  
Old 11-09-2008, 01:01 PM
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Originally Posted by diptenkrom View Post
i know i am going to sound like an idiot, but was this standard in the 3 series? how do i know if my car has it?

95 325i auto
Yes, you have a single Vanos M50.
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  #14  
Old 11-09-2008, 01:31 PM
strogg strogg is offline
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yeah, all e36's made 9/92 and up have vanos.

and as for the feeling like a champ in the morning, it's normal, because the computer makes the car run a bit rich before the car warms up. it's also when the engine bay is still at ambient temperature, so the air going into the engine is colder. so more air + more fuel == more power. at least that's my reasoning behind it.
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  #15  
Old 11-09-2008, 01:38 PM
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Quote:
Originally Posted by strogg View Post
yeah, all e36's made 9/92 and up have vanos.

and as for the feeling like a champ in the morning, it's normal, because the computer makes the car run a bit rich before the car warms up. it's also when the engine bay is still at ambient temperature, so the air going into the engine is colder. so more air + more fuel == more power. at least that's my reasoning behind it.
rich mixture (when engine is cold) = retarded timing & less power.
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  #16  
Old 11-09-2008, 03:42 PM
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Nline6 Nline6 is offline
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and the car has been sitting for about 8 hours either way.
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  #17  
Old 11-09-2008, 05:36 PM
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diptenkrom diptenkrom is offline
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wow the rebuild procedure looks like a pain in the a$$.

repair kit is only $30 though..
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  #18  
Old 11-09-2008, 06:27 PM
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Nline6 Nline6 is offline
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yea it does, but I really want to do it, I am pretty good when it comes to taking things apart. putting them back together however........ I'll order the kit and give it a go some weekend. where did you find the kit for 30.00?
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