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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E39 (1997 - 2003)

E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #1  
Old 01-22-2011, 07:32 PM
mikedang72 mikedang72 is offline
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BMW 528i 1998 Replace camshaft position sensor - DIY

Hi all,

Recently I encountered a "service engine soon" light. But didn't really pay much attention to it. As I didn't really feel much difference in my cars performance. Over time I started to lose power going up hills and encountered acceleration issues. I took it into emissions to get it registered and it turns out that it was the camshaft position sensor that needed to be replaced. I did it myself and the "service engine soon" light went away as well as the firing and power issues.

The part number is: 12 14 1 703 221
Cost: $150
Time to replace: 1 hour.

I think you can buy it for less online but I didn't want to take any chances with incompatibility.

For the most part pretty easy project. Do a little save a lot.













PLEASE READ THIS PART

Make sure that the plug is facing in the right direction when plugging it back in. Took me 10 minutes and some serious hand pain trying to fiddle with it.

ALSO notice the nut below the word "remove in step #3. Make sure that this nut is tight before starting your engine or your oil will start to leak out of it and get everywhere.

I hope that saves you a few hundred bucks. Enjoy!

Mike

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  #2  
Old 01-22-2011, 07:48 PM
cn90 cn90 is offline
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Thanks for the DIY!!!

1. How many miles in your car when the CPS failed?

2. Also PN 12 14 1 703 221 is about $75 online, Siemens VDO is the OEM, or you can get BMW brand too.
Any other brand is formula for disaster.

3. The "Nut" you mentioned is actually the Banjo Bolt for the Oil Line to the Vanos.
Your hose feeding the Vanos is wet.
Mine seeped a bit at 100K, so I replaced it.
The torque for the Banjo Bolt is in my DIY here:

http://www.bimmerfest.com/forums/sho...d.php?t=379225
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  #3  
Old 01-22-2011, 08:12 PM
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Jason5driver Jason5driver is offline
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Excellent write-up!
Thank you MUCH!

Thanks!
Jason
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  #4  
Old 01-22-2011, 11:27 PM
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bluebee bluebee is offline
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Nice. Very nice. Very pictorial.

Thanks for adding VALUE to the forum.

So others can find it easily, I added it to the VERY best of E39 Links:
- How to replace your camshaft position sensor (CPS) in the E39 (02 530i) (98 540i) (M62 98 540i) (98 528i) & E46 (1) & ('99 740iL)


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Last edited by bluebee; 01-22-2011 at 11:41 PM.
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  #5  
Old 01-27-2011, 10:33 PM
mikedang72 mikedang72 is offline
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Hi cn90,

Thanks for the information about the "Banjo Bolt for the Oil Line to the Vanos" I checked the thread out. Wow, great information. I'm such a amateur compared to everyone on here. I've gotten so much from the forums. I just thought I would give back.

To answer your questions, My CPS failed at 113K. I purchased it from BMW at $150 and then found it online for $85. Wish I would have known earlier. Thanks

Mike
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  #6  
Old 01-27-2011, 10:36 PM
mikedang72 mikedang72 is offline
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Hi Bluebee,

Nice addition to the thread. Definitely be helpful to others with other models.

Mike
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  #7  
Old 05-07-2011, 08:44 AM
snapple112 snapple112 is offline
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Great write up indeed. Thank you! Mine has failed at 145k after replacing my vanos seals. I hope this will end my engine shut-off issues and power issues.
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  #8  
Old 05-07-2011, 01:58 PM
mikedang72 mikedang72 is offline
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Hi Snapple112,

Yeah I believe it should. Seems as though the Camshaft position sensor goes out more often than not. Good luck.

Mike
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  #9  
Old 05-07-2011, 02:19 PM
snapple112 snapple112 is offline
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Thanks... so far no luck. My oil filter cap is stripped, so I can't get that off and I don't have a tool big enough to fit around the solenoid.
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  #10  
Old 05-07-2011, 02:27 PM
mikedang72 mikedang72 is offline
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Sounds like you need a lock wrench at this point.
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  #11  
Old 05-08-2011, 12:48 AM
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bluebee bluebee is offline
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Quote:
Originally Posted by mikedang72 View Post
Sounds like you need a lock wrench at this point.
Even if the corners are rounded, I can't imagine a pipe wrench failing to remove the plastic oil filter cap at this point (then go buy a new one).

Last edited by bluebee; 05-08-2011 at 12:50 AM.
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  #12  
Old 05-08-2011, 01:30 AM
cn90 cn90 is offline
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I just want to add to this excellent thread that: when the Oil Filter Housing is exposed, use a ziploc bag and rubber band to cover it.
This way debris, leaves, insects etc. do not land inside the Oil Filter Housing!
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  #13  
Old 05-12-2011, 11:52 PM
butski4 butski4 is offline
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how is the solenoid located above the camshaft sensor removed
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  #14  
Old 06-21-2011, 06:12 PM
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bluebee bluebee is offline
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For the crosslinked record, be careful which CPS you buy.

Note this story today, where a fellow member helped another:
- E39 (1997 - 2003) > Please help me!!.. Vanos seals install

Quote:
Car starts great...smooth as silk. Out on the road it's bogging down getting out of second gear....Crap!!!

I am thinking through what the problem could be. I ask Tommy about the "New" CPS I just put in...Guess what, it's a Chinese-made piece of cr**

I pull the code...yes, CPS. He explains to me that he was getting intermittent CELs, so he bought a CPS. Long story shory, I change the CPS back out. Now the car runs perfectly!!
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  #15  
Old 06-21-2011, 06:16 PM
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Est1974 Est1974 is offline
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Did you get the CPS code when you ran the diagnostics or was it another code? Or a shot in the dark entirely
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  #16  
Old 06-22-2011, 08:29 AM
cn90 cn90 is offline
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Quote:
Originally Posted by Est1974 View Post
Did you get the CPS code when you ran the diagnostics or was it another code? Or a shot in the dark entirely
Read the original poster's first paragraph.
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  #17  
Old 06-22-2011, 11:40 AM
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doru doru is offline
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A just FYI, an interesting post on Roadfly - CPS woes. Beside the no-no aftermarket CPS, apparently there is a "software" update for these situation, if the new CPS does not work properly (BMW bulletin for model years Apr 2000 - Nov 2001).
Post #22.
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  #18  
Old 10-11-2011, 08:34 PM
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ill_kuma ill_kuma is offline
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Wow...its over $100 for each sensor. Where do you guys buy them at? So they are called "intake camshaft position sensor" and "exhaust camshaft position sensor"?
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  #19  
Old 10-12-2011, 12:07 AM
fortunateson fortunateson is offline
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Good tips. I've only had to do the exhaust side which is much simpler/quicker. I've written about this a couple of times on this forum. Short process: Disconnect near the Vanos and tie a long string to that end. Then disconnect at the other end and gently pull it through. Untie the string and tie on the new sensor. Pull it back into position by the string. Attach at either end and start motoring. No need to remove any of the stuff on various manuals/DIYs.
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  #20  
Old 08-31-2012, 04:18 PM
michaeldiaz9452 michaeldiaz9452 is offline
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Smile DIY Camshaft position sensor update

Ok so I did both sensors today,and thought Id chime in and give my tips on the experience. Thanks so much for all the people who posted pics of this task, couldn't have done it without you!!! I found that it was really easy to drop allen wrench's and not ever see them before, so I used fishing line and tied it to the wrench. I also loosened up the fan shroud so i could have more room to loosen the 5mm bolt. I opted to use a shorty mini ratchet and allen bit, which made the job a breeze. I also was afraid of dropping the 5mm bolt down into the abbis, so I tied a piece of fishing line to it, and threded it in, then once it was torqued, I just pulled and it broke off at the bolt head, now keep in mind this is very thin line... This was a very easy DIY anyone can do it!!!!!!

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hope it help.
God Bless....
Mike
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  #21  
Old 09-12-2012, 01:59 AM
ZUSHAH786@AOL.C ZUSHAH786@AOL.C is offline
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I am a newbe at this. I have determined from the code that it is an exhaust cam position sensor need to be replaced. As i understand, after reading these posts, there are 2 cam position sensors. 1 is the intake cam position sensor the other is exhaust cam position sensor. I am not very clear as to which one is where. I have a 2001 e39 (530i). Would appreciate if someone can clarify this. Also what would be the best place to purchase these sensors (which are reliable) and priced decent.
Thanks for any help
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  #22  
Old 09-12-2012, 05:56 PM
michaeldiaz9452 michaeldiaz9452 is offline
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Autohausaz.com best and cheapest oem parts period!!!!!!! Wont go anywhere else...
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  #23  
Old 04-14-2014, 10:59 PM
arielb1 arielb1 is offline
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Guys, there is a black hose that connects to the vanos solenoid. This is preventing me from getting the new camshaft positioning sensor back in. The new camshaft positioning sensor housing that goes into the engine is bigger. I need to disconnect the black hose that goes to the vanos housing. Is this just oil inside the hose. Can I disconnect and reconnect it?

See picture https://www.bimmerfest.com/forums/sh...d.php?t=514578
It is the black hose under the #2. in the picture. It is labeled as "nut". I think this is called a banjo bolt. Can I take this bolt out so I can move the hose and install the CPS? If so, what are the gotchas in regards to removing this bolt?


Thank you bunches

Last edited by arielb1; 04-14-2014 at 11:16 PM.
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  #24  
Old 08-01-2014, 04:21 PM
d__j d__j is offline
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How to remove the clip holding the CPS wire

Hi,

I've managed to disconnect both ends of the CPS wire, however the wire itself is maintained in place with a clip firmly attached to the engine - see picture attached.

Did anyone came across this clip holding the wire in place? If so any advice how to disconnect it.

Obviously an old wire can be sliced and pulled out from the clip. I am leaving this option as last resource, as I would like install the new new wire through the same clip.
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  #25  
Old 11-07-2014, 07:06 AM
stopher2 stopher2 is offline
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Intake Cam Sensor

2003 530i e39 127k

i replaced my intake and my exhaust CAM SENSOR and drove 100 miles with no problems.

THEN i get a hard start, check engine light throws and OBD shows P0340 AGAIN.
it stalled for the first time ever.

i suspect the intake sensor is a chinese sensor and is no good.
but it is funny it would complain after 100 miles ???

coincidentally i had done the plugs, vanos, valve gaskets, both sensors,

and within the 100 miles i did the tranny fluid/filter (redline d4).

do i need to replace the sensor AGAIN ? probably complain to the online vendor ?
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