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7 Series - E65 / E66 (2002 - 2008)
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  #1  
Old 11-13-2013, 11:15 PM
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mybmw408 mybmw408 is offline
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Crank position Sensor

After work I started my 2007 750i. When I tried to drive off, car seemed like it wasn't running on all 8 cylinders, very rough. The check engine came on and ran rough on freeway. Came home and ran codes P0016. Is this the sensor under the car on tranny??

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  #2  
Old 11-14-2013, 05:34 AM
karmaxul karmaxul is offline
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Yes the sensor is under the transmission. You will need to remove the plastic skid plate and metal skid plate. A 5/8 wrench gave me the best fit on these bolts. I have some picture here of where it is.... http://www.bimmerfest.com/forums/sho...181&highlight=
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  #3  
Old 11-14-2013, 10:24 AM
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mybmw408 mybmw408 is offline
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I seen your pictures for location of the crankshaft position sensor. Just that on code reader screen shows both Crankshaft position sensor and Camshaft position sensor. I know the camshaft position sensors on Bank 1 are on the passenger side. Which one is sensor A??? Just trying to figure this out.

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  #4  
Old 11-14-2013, 10:26 AM
karmaxul karmaxul is offline
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Sorry my friend I am not sure which one is sensor A. I honestly have not heard reference to sensor A before.
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  #5  
Old 11-14-2013, 11:36 AM
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Crank position Sensor

Just took it out. Ordered another from BMA here in California $55, BMW dealer wanted $160
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  #6  
Old 11-14-2013, 03:15 PM
inspi inspi is offline
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Looks like problem with VANOS to me. Sensor change is useless. The code sey Crankshaft-Camshaft-that's mean timing .....
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  #7  
Old 11-14-2013, 03:22 PM
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Originally Posted by inspi View Post
Looks like problem with VANOS to me. Sensor change is useless. The code sey Crankshaft-Camshaft-that's mean timing .....
I'm new to this Vanos stuff, can you explain please??? I've owned older bmw's without this. Have owned this car for almost a month now.

Last edited by mybmw408; 11-14-2013 at 03:27 PM.
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  #8  
Old 11-14-2013, 03:29 PM
inspi inspi is offline
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VANOS it's kinda complicated, but i will start with cleaning of check valve #8 on picture located in cylinder heads-total 4 pieces

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  #9  
Old 11-14-2013, 03:32 PM
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So this is a major job
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  #10  
Old 11-14-2013, 03:35 PM
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Have to pull motor apart for this.. Don't think there is a DIY for this
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  #11  
Old 11-14-2013, 03:36 PM
inspi inspi is offline
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Not realy, if you handy
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Old 11-14-2013, 03:38 PM
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Have to pull timing cover to get to it , everything else in the way
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  #13  
Old 11-14-2013, 03:39 PM
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No, everything is outside of head. And i will also check VANOS solenoids
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Old 11-14-2013, 03:46 PM
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Check valves can be removed with intake installed, just take out throtle body
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Last edited by inspi; 11-14-2013 at 03:47 PM.
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  #15  
Old 11-14-2013, 03:55 PM
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how do the check valves come out?? Special tool....
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  #16  
Old 11-15-2013, 01:48 AM
inspi inspi is offline
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Torx bit, but i don't remember size
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Old 11-15-2013, 06:22 AM
karmaxul karmaxul is offline
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I am having the same issue with mine and while I am waiting for the sensor to arrive in the country as our BMW dealer does not have it on hand I would like to check the check valve and solenoids.

If you dont mind me asking, once I have them removed, what exactly am I looking for to know they are working properly or need to be replaced.
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  #18  
Old 11-15-2013, 06:50 AM
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Also do I use carburetor cleaner to clean it??? Just spray clean then re install?? I want to try this tonight.
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  #19  
Old 11-15-2013, 01:59 PM
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Crank position Sensor

Don't see anything wrong, just oil on it, looks cleanClick image for larger version

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  #20  
Old 11-15-2013, 02:02 PM
inspi inspi is offline
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Yep, check for any dirt or contamination. And if you found something, then just clean it up. All valve and solenoid are same, so you can try to switch them (bank1 to bank2), then you will see, if the error move to other side-then the solenoid is bad
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  #21  
Old 11-15-2013, 02:03 PM
inspi inspi is offline
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Don't see anything wrong, just oil on it, looks cleanAttachment 407686Attachment 407687


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Looks OK, how about solenoids?
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  #22  
Old 11-15-2013, 02:04 PM
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Are solenoids hard to put back in???
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  #23  
Old 11-15-2013, 02:45 PM
inspi inspi is offline
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No. Remove 10 mm size bolt and pull it out, reverse for install, just make sure you put back O-ring
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  #24  
Old 11-15-2013, 02:51 PM
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I'm waiting for my crankshaft sensor to arrive tomorrow, before I tackle that. It was really quick to check these, 15 min or less.
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  #25  
Old 11-15-2013, 04:03 PM
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Crank position Sensor

Ok couldn't waitClick image for larger version

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