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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 03-14-2017, 02:48 PM
YourOPeein YourOPeein is offline
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Location: Palm Springs, CA
 
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Mein Auto: 2001 540 6 speed
2001 E39 6 speed 137,000 miles

HELP. Getting a code indicating a bad cps, bank 2. I can't trust the one BMW guy and planning DIY. Question about replacing camshaft position sensor: Does NAPA or BMW OEM parts perform better (and longer) than one purchased from autohausaz.com? Thinking just to replace both CPS... wish me luck... Any feedback or suggestions would be appreciated


Last edited by YourOPeein; 03-17-2017 at 07:34 AM.
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  #2  
Old 03-14-2017, 03:49 PM
edjack edjack is online now
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Best long-lived parts are from BMW or OEM supplier (like Bosch). Remove yours and see if the mfr's name is on it.
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  #3  
Old 03-14-2017, 04:00 PM
E38SkunkWerks E38SkunkWerks is offline
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Quote:
Originally Posted by edjack View Post
Best long-lived parts are from BMW or OEM supplier (like Bosch). Remove yours and see if the mfr's name is on it.


This. Get OEM or plan on replacing again very soon. The cheap stuff comes with lifetime warranty because people get very upset when they have to continually pay for the same part over and over.


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  #4  
Old 03-16-2017, 03:26 PM
YourOPeein YourOPeein is offline
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Great thoughts and advice Thanks! Will go with Bosch; do you think (INYHO) that since I'm already there it makes sense (now at 137,000 miles) to replace ignition coils and plugs as well as BOTH CPS'?
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  #5  
Old 03-16-2017, 03:56 PM
edjack edjack is online now
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By all means, if the plugs are original, replace them. Use only NGK BKR6EQUP.

Replace coils when they fail, unless you have money to waste. Same with the CPS.

"INYHO?"
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  #6  
Old 03-17-2017, 07:38 AM
YourOPeein YourOPeein is offline
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Inyho

= IN Your Honest Opinion -
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  #7  
Old 03-17-2017, 03:21 PM
spoddye39 spoddye39 is offline
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Quote:
Originally Posted by edjack View Post
Replace coils when they fail, unless you have money to waste. Same with the CPS.
This is generally my philosophy too, but it does depend on what you use your car for. I use my car as a daily driver to work mostly, and if I were to turn up late one day because my car broke down it wouldn't be a big deal. If you do long trips or through isolated areas you might think differently.

Also just throw a spanner in the works I recently replaced my CPS due to a failure reported but carsoft. I dissected the old one and found the individual wire insulation had disintegrated to the point where it all fell off up at the plug, and so the wires were shorting together. Not sure why it did this but I'm guessing engine heat and age, and logically you might think that on this engine anyway there could be other sensors with the same problem, and I'm considering replacing some others too. Haven't done anything about it yet however.

Re the coil packs I have a spare at home that I used to keep in my boot. While I could replace it on the street you can drive on 5 cylinders pretty easily, so I took it out and leave it at home now. I recommend you buy one only Bosch and do the same.

My 2 cents anyway.

Spod
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  #8  
Old 03-17-2017, 03:37 PM
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Burning2nd Burning2nd is online now
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Mein Auto: E39 540, E36 328is, E83x3
12$ amazon sensor waves *hello!
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  #9  
Old 03-19-2017, 02:44 AM
spoddye39 spoddye39 is offline
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Originally Posted by Burning2nd View Post
12$ amazon sensor waves *hello!
It was a genuine BMW part, had the BMW and Seimens logos.
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  #10  
Old 03-19-2017, 02:37 PM
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Burning2nd Burning2nd is online now
Under the lift arms
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No im saying my 12 $ amazon sensor is laughing all the way to the bank and has been for a few years now
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  #11  
Old 03-19-2017, 04:08 PM
spoddye39 spoddye39 is offline
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OIC.

I replaced it with one I pulled from a wreckers yard, seems to be working OK. The replacement has the Siemens logo but no BMW logo - am thinking it is not the one the car was originally manufactured with so probably has some life left.

Have you tried any other non-OEM sensors? eg oxygen sensor.

Spod
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  #12  
Old 04-06-2017, 03:17 PM
YourOPeein YourOPeein is offline
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Mein Auto: 2001 540 6 speed
Love all this good advise... and I have another question. the code (P0345) says A circuit bank 2. Am still learning, so before I tear into something - thought I would ask.

I drive this on weekends or when I am tired of driving a 4-cyl, 5-sp Ranger every day. So when I drive the car, it's usually in a 'spirited' manner so I want to keep up with it.
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  #13  
Old 04-08-2017, 05:18 PM
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540 M-Sport 540 M-Sport is offline
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Quote:
Originally Posted by spoddye39 View Post
This is generally my philosophy too, but it does depend on what you use your car for. I use my car as a daily driver to work mostly, and if I were to turn up late one day because my car broke down it wouldn't be a big deal. If you do long trips or through isolated areas you might think differently.

Also just throw a spanner in the works I recently replaced my CPS due to a failure reported but carsoft. I dissected the old one and found the individual wire insulation had disintegrated to the point where it all fell off up at the plug, and so the wires were shorting together. Not sure why it did this but I'm guessing engine heat and age, and logically you might think that on this engine anyway there could be other sensors with the same problem, and I'm considering replacing some others too. Haven't done anything about it yet however.

Re the coil packs I have a spare at home that I used to keep in my boot. While I could replace it on the street you can drive on 5 cylinders pretty easily, so I took it out and leave it at home now. I recommend you buy one only Bosch and do the same.

My 2 cents anyway.

Spod
For the OP, the coils for the 2001 540 are not Bosch, but Bremi/STI. They can be purchased online from Ebay or Autohausaz for around $47 delivered (not a good idea to mix brands, so I'm told). I keep a spare on the shelf as well, past 200k they can fail rather randomly. Easy swap.
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540 M-Sport package (Canadian market), factory Bluetooth phone integration, factory M-Audio 10" dual voice coil subs, Homelink, M5 rear stabilizer bar, M5 rear subframe braces, H&R 15mm wheel spacers, ST X (KW) coilovers, Stop Tech ss brake lines, Akebono Euro Ceramic brake pads, oem Brembo and Zimmerman rotors, Dinan Stage 1 software, Strong Strut front upper stress bar, BMP strut tower reinforcement kit, USA Spec Ipod/Iphone integration.
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  #14  
Old 04-08-2017, 07:08 PM
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540 M-Sport 540 M-Sport is offline
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Quote:
Originally Posted by spoddye39 View Post
OIC.

I replaced it with one I pulled from a wreckers yard, seems to be working OK. The replacement has the Siemens logo but no BMW logo - am thinking it is not the one the car was originally manufactured with so probably has some life left.

Have you tried any other non-OEM sensors? eg oxygen sensor.

Spod
On the 540, the oem O2 sensors are Bosch. If one shops carefully, you can find them for reasonable prices (for my 540 I can get oem Bosch for $40 each with free shipping on Ebay). At least compared to any decent brand alternative, such as NGK, Denso or some such. I would not risk a no name one off Ebay from China or eastern Europe....and since a discounted oem Bosch is as inexpensive or less than NGK, why even bother with the risk?
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540 M-Sport package (Canadian market), factory Bluetooth phone integration, factory M-Audio 10" dual voice coil subs, Homelink, M5 rear stabilizer bar, M5 rear subframe braces, H&R 15mm wheel spacers, ST X (KW) coilovers, Stop Tech ss brake lines, Akebono Euro Ceramic brake pads, oem Brembo and Zimmerman rotors, Dinan Stage 1 software, Strong Strut front upper stress bar, BMP strut tower reinforcement kit, USA Spec Ipod/Iphone integration.

Last edited by 540 M-Sport; 04-08-2017 at 07:11 PM.
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