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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > DIY Guides > Eccentric Shaft Sensor Replacement



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      02-11-2014, 03:29 PM   #67
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I've been searching these, and other, forums for days and days and there is nothing concrete.

Apparently the throttle body in my car is secondary so it may not be the cause, even if I do clean it. I've read everything from the weather being to blame to replacing the throttle body, to eccentric shaft sensor, to the camshaft motor...

Who knows...I need a car that runs in the winter and apparently this one doesn't. In the summer, it's fine.
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      02-14-2014, 03:37 PM   #68
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Yes, that piece is the secondary air intake valve. I did not have a deep 10mm socket, so I used a combination of crow feet wrench and open wrenches, until I realized that an E16 deep socket grips the 10mm nut well enough. Then it was easy to remove.

I'm still stuck at trying to remove the vapor hose ><

I also have an extra hose connecting the valve cover to the air intake that I have not seen any one mention:
http://www.e90post.com/forums/showpo...26&postcount=6

So I'm still stuck at removing those two hoses (and one more bolt)...

I think at this point I'm 5 hours into the job already...

Quote:
Originally Posted by ice_nyne View Post
Scratch that. I did end up removing the piece blocking the bolt on the passenger side valve cover. Tricky to get the nuts off.

In all my prying and trying to get the squeeze connector loose on the vapor hose, snapped the hose about an inch above the connector. It was so brittle.

I'm screwed there. I'll try epoxy and duct tape to get it back together.
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      02-17-2014, 01:43 AM   #69
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Update: I found an easy way to remove the hose at the back of the valve cover, took 15 secs to remove the hose.

We know that the hose has two tabs, one on the left and one on the right. Problem is, the right tab is blocked by the valve cover itself, so it's impossible to squeeze a finger in. I tried a number of tools before finding that a trim tool works best. Go to Harbor freight and get a set of the trim tools.

Looking at the enemy from the passenger side of the car, you can see that if you use one of the trim tools with a 45 degree end, you will be able squeeze the tool against the valve cover and push the right tab. Use your left index finger to push the left tab, and well as your left thumb to apply pressure on the tool, thus squeezing the right tab simultaneously. Then, reach over using your right hand and viola, the hose is off.
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      02-20-2014, 04:15 AM   #70
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Another update: I took off the spark plug insulation while removing the valve cover. After changing the gasket, I put the cover back on before inserting the insulation. However, it was quite difficult to get them to seat properly. I used a 21mm socket and a rubber mallet to put them in.
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      03-02-2014, 08:45 PM   #71
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Is there a way to find out whether you have blue top bolts without taking all the cabin filters and valve cover off? I know if you bolts are blue than it's fine to re-use them but I would like to have all my parts here before I start and not taking everything out and put it back together and order them.

Also the plug where to check if the sensor have oil you'll have to remove the cabin filter, cowling, and engine cover to access it?
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      03-05-2014, 09:58 AM   #72
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Here is a video also to add to this procedure..
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      03-05-2014, 04:01 PM   #73
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Quote:
Originally Posted by Zero_09 View Post
Is there a way to find out whether you have blue top bolts without taking all the cabin filters and valve cover off? I know if you bolts are blue than it's fine to re-use them but I would like to have all my parts here before I start and not taking everything out and put it back together and order them.

Also the plug where to check if the sensor have oil you'll have to remove the cabin filter, cowling, and engine cover to access it?
To check whether you have Aluminum bolts, just use a magnet - if it's non magnetic, it's Al bolts, and you have to replace them.

You don't need to take the valve cover off to check the bolt or the plug, just need to take the engine cover off. For that, yes, you will have to remove the cabin filter.
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      03-09-2014, 04:50 PM   #74
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I'm noticing the same random hesitations when I accelerate but don't have any oil in the sensor slot itself and around the pins. There's oil around the opening though, on top of the valve cover. All the coils seem to be working fine by disconnecting each one individually. Is it possible the sensor is still clogged with oil underneath?
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      03-09-2014, 11:43 PM   #75
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Quote:
Originally Posted by jh7 View Post
I'm noticing the same random hesitations when I accelerate but don't have any oil in the sensor slot itself and around the pins. There's oil around the opening though, on top of the valve cover. All the coils seem to be working fine by disconnecting each one individually. Is it possible the sensor is still clogged with oil underneath?
The sensor is supposed to sit in the oil (when you drive), since it attaches to the front of the cam.

When I took off my valve cover, I discovered that there was a lot of sludge around the sensor, so that could be the reason for your problems. If you open up the oil cap, do you see some sludge? If so then the sensor is likely covered in sludge too.
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      03-16-2014, 11:14 PM   #76
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Is there anybody putting sealant on the top of the head before installing the valve cover?
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      03-17-2014, 10:25 AM   #77
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Quote:
Originally Posted by Strictly4Boosting View Post
Is there anybody putting sealant on the top of the head before installing the valve cover?

I used some red RTV.

If I ever have to do this again it'll be a pain in the ass getting it all off, but after having it leak so early (~60k) I decided to do it anyway.
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      03-17-2014, 05:14 PM   #78
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Quote:
Originally Posted by joe__ View Post
I used some red RTV.

If I ever have to do this again it'll be a pain in the ass getting it all off, but after having it leak so early (~60k) I decided to do it anyway.
Yeah I figured to use that. I bought the car with 119k and the leak is horrendous and I'm sure this was already changed and they didn't do a good job or these leaks just happen to happen.
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      03-17-2014, 06:29 PM   #79
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Quote:
Originally Posted by joe__ View Post
I used some red RTV.

If I ever have to do this again it'll be a pain in the ass getting it all off, but after having it leak so early (~60k) I decided to do it anyway.
There is no need to put sealant. What I did is rubber conditioner to prevent rubber gasket up hardening up. Brittle gasket is why it probably leaked so soon..
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      03-18-2014, 08:00 AM   #80
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Quote:
Originally Posted by romanonj
Quote:
Originally Posted by joe__ View Post
I used some red RTV.

If I ever have to do this again it'll be a pain in the ass getting it all off, but after having it leak so early (~60k) I decided to do it anyway.
There is no need to put sealant. What I did is rubber conditioner to prevent rubber gasket up hardening up. Brittle gasket is why it probably leaked so soon..
Do you have a link to this rubber conditioner? Trying to gather all materials and tools needed for the DIY weekend.
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      03-23-2014, 02:17 PM   #81
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Let me just add that I am halfway on this job on my 06 330xi . The valve cover gasket is different from the 328. The 328 gasket is pushed onto the valve cover, while the 330 is just flat. When removing the coils there are no shields that you need to remove after with a pick or c plyers. Also my valvetronic gasket is different. It looks smaller more like a single football gasket instead of the double football gasket that I seen. I gave the dealer my vin. but he gave me the wrong part I believe. I have to wait til tomorrow to go and change the part. Everything else seems to be about the same. Also I looked at eccentric sensor, my gasket has to be the original because there is a date on it that says 2005. I am almost at 130k. I did not see oil in my eccentric sensor, are these common on the 328s only? Are the part numbers different? Did BMW go cheaper on these sensors? Im hoping that they did because I wouldn't want to spend $500 on a sensor.
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      03-26-2014, 01:04 PM   #82
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Good writeup, gonna need to do this...
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      03-28-2014, 12:34 PM   #83
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What is the torque for the "strut tower brace / support bar" ?

Thanks.

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      03-28-2014, 08:50 PM   #84
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Quote:
Originally Posted by Strictly4Boosting View Post
Let me just add that I am halfway on this job on my 06 330xi . The valve cover gasket is different from the 328. The 328 gasket is pushed onto the valve cover, while the 330 is just flat. When removing the coils there are no shields that you need to remove after with a pick or c plyers. Also my valvetronic gasket is different. It looks smaller more like a single football gasket instead of the double football gasket that I seen. I gave the dealer my vin. but he gave me the wrong part I believe. I have to wait til tomorrow to go and change the part. Everything else seems to be about the same. Also I looked at eccentric sensor, my gasket has to be the original because there is a date on it that says 2005. I am almost at 130k. I did not see oil in my eccentric sensor, are these common on the 328s only? Are the part numbers different? Did BMW go cheaper on these sensors? Im hoping that they did because I wouldn't want to spend $500 on a sensor.
What year is your 328? I'm looking to get these done and planning to order the parts soon. Please let share the valvetronic gasket part # when you get it. Better if we can the right part first.
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      03-29-2014, 01:18 AM   #85
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11-12-7-581-215 is the valve cover gasket
11-12-0-409-288 is the aluminum valve cover bolts
11-12-7-528-242 is the gasket for the sensor
11-37-7-524-879 is the sensor.

This is for my 06' 330i.
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      03-29-2014, 07:46 AM   #86
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Quote:
Originally Posted by tigermack View Post


11-12-7-581-215 is the valve cover gasket
11-12-0-409-288 is the aluminum valve cover bolts
11-12-7-528-242 is the gasket for the sensor
11-37-7-524-879 is the sensor.

This is for my 06' 330i.
Thanks.

Odd those part # are different than what the OP posted

Eccentric shaft sensor 11-37-7-524-879
Eccentric shaft sensor gasket/seal 11-12-7-559-699
Valve/cylinder cover gasket 11-12-7-582-245
Valvetronic motor gasket 11-12-7-552-280

only the sensor part # is the same.
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      03-29-2014, 08:09 AM   #87
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Quote:
Originally Posted by Zero_09 View Post
Thanks.

Odd those part # are different than what the OP posted

Eccentric shaft sensor 11-37-7-524-879
Eccentric shaft sensor gasket/seal 11-12-7-559-699
Valve/cylinder cover gasket 11-12-7-582-245
Valvetronic motor gasket 11-12-7-552-280

only the sensor part # is the same.
Careful...Those numbers are for his 06 330i
Although BMW seems to change their part numbers like crazy and a lot of times the parts fit other vehicle models... Double check before you order.
The part numbers originally posted are for the 07 328i e90.
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      03-29-2014, 04:52 PM   #88
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Quote:
Originally Posted by Zero_09 View Post
Thanks.

Odd those part # are different than what the OP posted

Eccentric shaft sensor 11-37-7-524-879
Eccentric shaft sensor gasket/seal 11-12-7-559-699
Valve/cylinder cover gasket 11-12-7-582-245
Valvetronic motor gasket 11-12-7-552-280

only the sensor part # is the same.


I got the PN off the receipt from a BMW parts department.
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