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E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

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  #1  
Old 03-23-2011, 08:02 PM
FirstVert FirstVert is offline
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Mein Auto: 2004 BMW 325Ci
Code P0012

Intake camshaft position sensor, over-retarded. I found the replacement procedure DIY in Wiki section but am wondering if this can be adjusted or does it have to be replaced. My car is still operating relatively normal.

Thanks,
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  #2  
Old 03-23-2011, 08:06 PM
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marinekilz marinekilz is offline
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Mein Auto: 02 e46 325 xi
nope just replace, ten minutes and your done
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  #3  
Old 03-23-2011, 08:44 PM
FirstVert FirstVert is offline
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Thank you, sir.
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  #4  
Old 03-07-2013, 05:57 PM
charofire charofire is offline
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Did you determine if the code p0012 was resolved by replacing your intake camshaft sensor?
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  #5  
Old 03-07-2013, 09:42 PM
heztheone heztheone is offline
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p0012 is related to the camshaft position sensor
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  #6  
Old 03-07-2013, 10:03 PM
charofire charofire is offline
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Yes, i know the code can be related to the sensor, but ive read other threads that pointed to vanos issues. Thats why i was curious to see if this code was resolved with replacing the intake cam sensor or not...
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  #7  
Old 03-07-2013, 10:29 PM
heztheone heztheone is offline
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what's ur car and how many miles do u have on it?
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  #8  
Old 03-07-2013, 10:33 PM
charofire charofire is offline
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2002 330i. 145,000 miles.
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  #9  
Old 03-07-2013, 10:43 PM
heztheone heztheone is offline
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by this mileage, at least the VANOS should've been rebuilt once
are you experiencing any of the below symptoms?
- rough idle
- hesitation on acceleration, much more noticeable when AC is on
- bad fuel consumption
- loss of power
- rough revving, meaning it won't hit redline as quickly as it should
if so, and you have no knowledge whether the previous owner did the rebuild or not, you definitely should do your VANOS and change the camshaft position sensor.
usually a 330 should have a VANOS rebuild every 80-90k (of course for owners who like their cars in top shape, like all 330 owners )
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  #10  
Old 03-07-2013, 10:55 PM
charofire charofire is offline
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Right before I purchased it, it had the head rebuilt. I do not know if the vanos was ever done, but the shop that rebuilt the top end commented on how quiet the vanos is.
I do notice that it idles at 750 or so, and then sometimes at like 600. MPG is around 18.5 according to the computer.
I guess I am just trying to get to the bottom of this code first, and before throwing parts at it, I wanted to see if anyone thought p0012 was more likely a camshaft sensor than my vanos. camshaft sensor is an easy fix.
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  #11  
Old 03-07-2013, 11:55 PM
heztheone heztheone is offline
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Quote:
Originally Posted by charofire View Post
Right before I purchased it, it had the head rebuilt. I do not know if the vanos was ever done, but the shop that rebuilt the top end commented on how quiet the vanos is.
I do notice that it idles at 750 or so, and then sometimes at like 600. MPG is around 18.5 according to the computer.
I guess I am just trying to get to the bottom of this code first, and before throwing parts at it, I wanted to see if anyone thought p0012 was more likely a camshaft sensor than my vanos. camshaft sensor is an easy fix.
do that first and go from there
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  #12  
Old 03-08-2013, 11:25 PM
charofire charofire is offline
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I replaced the sensor, intake cam sensor, and the p0012 came back immediately. What next?
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  #13  
Old 03-10-2013, 10:03 PM
charofire charofire is offline
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Code is still here. Vanos solenoid packs? Most likely culprit?
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  #14  
Old 03-10-2013, 11:11 PM
heztheone heztheone is offline
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did u clear the codes after replacing the sensor?
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  #15  
Old 03-11-2013, 09:19 AM
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smolck smolck is online now
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Quote:
Originally Posted by charofire View Post
Code is still here. Vanos solenoid packs? Most likely culprit?
Yep. Sorry I didn't see this till now. Camshaft sensor codes are different. You need a new VANOS solenoid. Pretty easy to replace, I can usually source them for $40 used if you need help, pm me.
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now, go burn your Man Card, and buy yourself a Camry....
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  #16  
Old 03-11-2013, 01:38 PM
charofire charofire is offline
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Thanks for the offer. I may take you up on that. is there a way to test my solenoid to see if it is in fact the culprit? My friend has a 99 m3. I believe the e36 has the same solenoid and I could borrow his and see what happens?
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  #17  
Old 03-11-2013, 01:40 PM
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smolck smolck is online now
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Quote:
Originally Posted by charofire View Post
Thanks for the offer. I may take you up on that. is there a way to test my solenoid to see if it is in fact the culprit? My friend has a 99 m3. I believe the e36 has the same solenoid and I could borrow his and see what happens?
Yea, just put 12 volts to the leads and you should see the plunger extend.
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Originally Posted by Fast Bob View Post
now, go burn your Man Card, and buy yourself a Camry....
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  #18  
Old 03-19-2013, 06:16 PM
charofire charofire is offline
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The p0012 disappeared on its own, and thus, the check engine light turned off, but then returned back on. If the timing was potentially a little bit off, would the check engine light always be on? I am running out of options...
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  #19  
Old 06-22-2014, 06:01 AM
rickzz rickzz is offline
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Mein Auto: 2007 530xi
P0012 code

I have a 2007 530 xi. It had the P0012 Code. I changed both camshaft position sensors and it did improve the way my car ran, but the P0012 code kept coming back. I finally had to take it to Motorwerks in Minneapolis. They changed the cap on the iol filter housing and that fixed the problem. No more P0012!! They told me that some of the parts on the cap were broken and this messes the oil pressure enough to throw the P0012 code. I never saw this solution so I thought I'd share. Hope I'm not repeating...
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