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7 Series - E65 / E66 (2002 - 2008)
Discussion pertaining to the flagship BMW here.

View Poll Results: Have you replaced the VANOS seals on your 7?
Yes 4 11.43%
No 31 88.57%
Voters: 35. You may not vote on this poll

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  #1  
Old 01-13-2013, 07:49 PM
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7Figurez 7Figurez is offline
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Replacing Vanos Seals, the best and cheapest($25) repair for your 7

I talked to a master mechanic about the VANOS controlled motors, specifically the n62b44 motors. He recommened replacing the VANOS seals every 45K miles. I performed the service the other day @143K MI. My car was running terrible before I did the seals, rough idle,surging, lack of low- mid range power, Check engine light transmission issues.

Once I replaced the seals on all 4 VANOS solenoids and reset the VVT computer and DME, my car came back to life. The repair only took about an hour to complete, but it is well worth the time.

My milage on the highway has increased dramatically from around 14MPG to 21-22MPG average.

I urge everyone that owns a 7 series to perform this service ASAP, the car will run like new. A service shop would probably only charge $100 for install and the parts cost $22.
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  #2  
Old 01-13-2013, 07:55 PM
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ID:	357530Left Old seals, Right New Seals

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ID:	357531Before Cleaning

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ID:	357532Left Before cleaning, Right After Cleaning

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  #3  
Old 01-13-2013, 08:00 PM
7Rage 7Rage is offline
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is this an issue with the n62b48?
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  #4  
Old 01-13-2013, 08:07 PM
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7Figurez 7Figurez is offline
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Yes, both motors use the same seals for the solenoid.

Parts #8 and #9

http://realoem.com/bmw/showparts.do?...53&hg=11&fg=10

Inner o-ring - 11367546379 - This is the o-ring that fails and causes the issue!

Outer o-ring -11367513222
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  #5  
Old 01-13-2013, 09:49 PM
7Rage 7Rage is offline
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read on here that there were no seal rebuild kits.... even from beisan but that they were working on one... did that come out? where did you get yours? did you repalce or clean your sensors?
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  #6  
Old 01-13-2013, 09:53 PM
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These are the solenoid seals not the vanos gear seals.

I cleaned them and re installed.

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  #7  
Old 01-13-2013, 09:57 PM
7Rage 7Rage is offline
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ah.. and where did you get them?
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  #8  
Old 01-13-2013, 09:59 PM
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The dealer had them in stock

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  #9  
Old 01-13-2013, 10:29 PM
cmpcpro cmpcpro is offline
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How hard were they to put back in the motor? Also I couldn't reset my DME from INPA, can you tell me how you made the proper resets? Thanks!
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  #10  
Old 01-13-2013, 11:29 PM
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7Figurez 7Figurez is offline
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They are not hard to replace, just make sure the o rings have plenty of oil on them.

Inpa > engine> n62 me 9
> F6 > shift +F2 > F3 > F9

Make sure you reset egs adaptation as well.


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  #11  
Old 01-14-2013, 09:47 AM
bimmer750ok bimmer750ok is offline
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Do you know if there is DIY write up for this or any special tools required for this job?
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  #12  
Old 01-14-2013, 10:39 AM
cmpcpro cmpcpro is offline
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Quote:
Originally Posted by 7Figurez View Post
They are not hard to replace, just make sure the o rings have plenty of oil on them.

Inpa > engine> n62 me 9
> F6 > shift +F2 > F3 > F9

Make sure you reset egs adaptation as well.


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Thanks! Will do! Just curious though, what or how could those little o-rings make such a difference? A little curious on that, but I am going to order them right now anyway, as I have no doubt in what yousay.
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  #13  
Old 01-14-2013, 11:01 AM
kphani kphani is offline
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In Virginia as well ,,,

Hi, I am in Northern Virginia (Lorton). My 7 only has about 45k on it (2007). It is running fine now but, sounds like the replacement you are discussing is important. Can you kindly share the info of your mechanic? Thank you. -Kumar
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  #14  
Old 01-14-2013, 11:27 AM
7Rage 7Rage is offline
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i have same car as kphani.... do not notice any loss of power... have 66k miles, just putting that out there for reference.. though i do feel a very small kick on downshift... want to do this as a preventative thing tho as well as clean the sensors if wrong timing is applied then it can cause problems down the road.. mine is still under warratny tho so I will wait.... it expires aug 2013 because I wont be driving 30k miles before aug lol... at that point I really want to get into that engine, get irididum plugs change seals and what not, tranny update (if needed), tranny fluid,

I have the maintenance paln to 100,000 miles but dealer wont do tranny refill, or plugs... dicks... plugs arent required till 100k, but then who is able to do the plugs if 6 year come before that smh....? and tranny fluid "lasts longer" than that.... so and they wont to tranny update just becasue i ask them to, and the the 2-1 kick is not a real problem... they do brakes and oil, brakes and oil, brakes and oil....why? cuz its easy and cheap...

will do update once i have inpa and usb.ob2cable.... just need to make sure I get the right one, and I dont want to spend 170 on it.... Uk guy has for 45 with all software... is this the right guy to get it from... its the blue one...
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  #15  
Old 01-14-2013, 12:21 PM
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7Figurez 7Figurez is offline
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The replacement is very simple, if you can change your own spark plugs you can perform this service.

You will need a 10mm wrench and a small pry screw driver to remove the solenoid.

The issue is the o rings start leaking oil and cannot hold pressure, so the timing gets thrown off. If you had leaking driver side valve cover, chances of the o ring leak is almost 100%.


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  #16  
Old 01-14-2013, 04:56 PM
jkess114 jkess114 is offline
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104k on the odometer, engine is running like a top. Lower control arms will need to be addressed in a little bit, but that seems to be it. Original Vanos seals. MPG is fine.
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  #17  
Old 01-14-2013, 08:50 PM
cmpcpro cmpcpro is offline
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I just finished mine.. haven't turned it on yet but it wsnt too bad, getting around vac pump was a little fun overall no biggy.. orings looked okay but could clearly see a big ring around one edge where obviously oil was going thru, so they are all clearly bad.. outters were okay.
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  #18  
Old 01-14-2013, 11:37 PM
cmpcpro cmpcpro is offline
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I cannot reset my DME. I had INPA 3.0 and it wasn't there, I downloaded 5.0.2 and installed and now I can't get into Ne9 for N62, it can't find the module or whatever its called. I also noticed when I removed mine that three of four were leaking slowly, as a bunch of crud below them.. I can confirm without resetting adaptations I have noticed another increase.. mostly in low end, like hitting gas off the line, or in a gear and accelerating lightly, it pulls WAY harder.. also tranny shifts harder now and holds high gears longer, meaning I can pull in a high gear where before it would downshift. Keep in mind I just replaced my camshaft sensors the other day too, so my VANOS system should be in good order, do we still need to replace vanos gear seals?
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  #19  
Old 01-14-2013, 11:46 PM
7Rage 7Rage is offline
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Quote:
Originally Posted by cmpcpro View Post
do we still need to replace vanos gear seals?
With the improvements ppl have been seeign, i'd like to know as well... i want to do these o rings and sensors later this year, sooooo....
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  #20  
Old 01-15-2013, 07:04 AM
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Originally Posted by jkess114 View Post
104k on the odometer, engine is running like a top. Lower control arms will need to be addressed in a little bit, but that seems to be it. Original Vanos seals. MPG is fine.
Did you purchase your car brand new? If not how many miles were on the car when you purchased it?
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  #21  
Old 01-15-2013, 07:07 AM
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7Figurez 7Figurez is offline
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Quote:
Originally Posted by cmpcpro View Post
I cannot reset my DME. I had INPA 3.0 and it wasn't there, I downloaded 5.0.2 and installed and now I can't get into Ne9 for N62, it can't find the module or whatever its called. I also noticed when I removed mine that three of four were leaking slowly, as a bunch of crud below them.. I can confirm without resetting adaptations I have noticed another increase.. mostly in low end, like hitting gas off the line, or in a gear and accelerating lightly, it pulls WAY harder.. also tranny shifts harder now and holds high gears longer, meaning I can pull in a high gear where before it would downshift. Keep in mind I just replaced my camshaft sensors the other day too, so my VANOS system should be in good order, do we still need to replace vanos gear seals?
Thats great news buddy, I am glad that this helped out other members. Did you upgrade your EDIBAS version when you upgraded INPA? I am running version 5.0.2 myself. After performing this repair I would not want to spend the time or money for an actual VANOS repair at this point. The performance increase from the new seals makes me believe that the VANOS gears aren't the issue.
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  #22  
Old 01-15-2013, 09:38 AM
jkess114 jkess114 is offline
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Purchased the car with 63k Utah and Idaho highway miles. Maybe the climate where the car is from has something to do with it? You think they were re-done? The car was owned by an old couple and serviced at BMW. I saw the BMW service history for the car. . . .there was no service history beyond routine maintenance during the life of the car.

As an aside, I really believe that when one of these cars come off the line with problems, they often have them throughout their lives. Law of the lemon if you will. Faced with the lovely idea of buying a newer one, I really hesitate, worried I might not get so lucky with the next one. Sure, a newer car would feel amazing but repair bills are not.




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Did you purchase your car brand new? If not how many miles were on the car when you purchased it?
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  #23  
Old 01-15-2013, 10:05 AM
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7Figurez 7Figurez is offline
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Take a look at all the posting's on here regarding gasket and o-ring failures on BMWs, IE. Coolant Tube, Valve Cover Gasket, Alternator plate, the list goes on. I would probably bet they were not changed. I did not really have any issues with the car besides it feeling slower on some days and other days it would drive alright. After cleaning the solenoids and replacing the o-rings I now see my car was running terrible for years without any check engine light. Like other members have said this is a large V-8 and most people will not be aware of this being an issue or lack of power if they have not driven a low mileage car to compare it too.






Quote:
Originally Posted by jkess114 View Post
Purchased the car with 63k Utah and Idaho highway miles. Maybe the climate where the car is from has something to do with it? You think they were re-done? The car was owned by an old couple and serviced at BMW. I saw the BMW service history for the car. . . .there was no service history beyond routine maintenance during the life of the car.

As an aside, I really believe that when one of these cars come off the line with problems, they often have them throughout their lives. Law of the lemon if you will. Faced with the lovely idea of buying a newer one, I really hesitate, worried I might not get so lucky with the next one. Sure, a newer car would feel amazing but repair bills are not.
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  #24  
Old 01-15-2013, 01:00 PM
cmpcpro cmpcpro is offline
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Originally Posted by 7Figurez View Post
Thats great news buddy, I am glad that this helped out other members. Did you upgrade your EDIBAS version when you upgraded INPA? I am running version 5.0.2 myself. After performing this repair I would not want to spend the time or money for an actual VANOS repair at this point. The performance increase from the new seals makes me believe that the VANOS gears aren't the issue.
I am not sure how to upgrade Edibas, I am fairly new to all these programs but I have only used INPA for a few things. I can give you an update, this morning I started the car and it is a whole new beast.. It's actually a bigger difference than replacing the camshaft sensors, now that I drive it more.. maybe the adaptations are learning, but now it's holding the gears much better, driving like I would think it should from the start.
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  #25  
Old 01-17-2013, 09:05 PM
AMP99 AMP99 is offline
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7Figurez,

What a great post! I just scored a 2006 750i with 35 k miles in great condition. I will keep this post bookmarked and printed for my records.

By the way, what wheels are you sporting and what are the sizes? They look Sweeeet !!!

By the way, I still have the e38 in my sig ~ Just turned 53 k miles !

Cheers,

Andrew
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