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BMW E46 3 Series 1999 -2004 (323i, 325i/xi, 328i, 330i/xi, M3, conv, sport wagon) P0340 Camshaft Position Sensor Intake side


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Last Post: Oct 23, 2014 2:14 PM Last Post By: Bimmeronly
E 46er

Posts: 33
Registered: 07/10/06
Re: P0340 Camshaft Position Sensor Intake side
Posted: Aug 9, 2008 1:49 PM   in response to: felix2 in response to: felix2
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Okay and once again I thank you for your contribution to all posts and for the free advice as to all members who contribute.
felix2

Posts: 290
Registered: 02/12/04
Re: P0340 Camshaft Position Sensor Intake side
Posted: Aug 11, 2008 1:14 AM   in response to: E 46er in response to: E 46er
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To get this thread back on track - Pelican Parts lists their sensors (see http://www.pelicanparts.com/bmw/catalog/shopcart/BE46/POR_BE46_ELgage_pg2.htm#item9) as genuine BMW and they're twice the price of Bav Auto's sensor. Given that Pelican is usually fairly price competitive I'm guessing Bav Auto's sensor is non-OEM and perhaps not fully compatible. Can someone who has replaced their original sensor examine it for any differences to the Bav Auto sensor and post any part numbers or brand names on the parts?
JJEFF

Posts: 91
Registered: 12/09/03
Re: P0340 Camshaft Position Sensor Intake side
Posted: Aug 11, 2008 7:40 PM   in response to: felix2 in response to: felix2
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Felix 2

I agree that this thread should get back on track. BUT Iam not convinced the originators problem can be diagnosed as simply a cam sensor changeout fix. There are a number of comments in the 21 replies as to which sensor is the best resolution to the problems that initiated the thread in the first place. What I see from reading the posts is an argument about which sensor is the best!?
The question may lie in the Vanos unit as I have alluded to and I will give a good reason for putting this point of view forward.
My son-in law has a 535i which exhibited very similar problems to the orgiginal posters complaint. His vehicle was diagnosed as needing cam sensor replacement by an Import specialist service shop (NOTE: not a BMW dealer service center)
After more than 2 months of repetitive codes and visits to the shop he finally went to BMW and they diagnosed the Vanos as the root cause of his problem with the erratic engine performance. The Vanos replacement parts cost him about $1000.00 and they did replace one cam sensor as well.
Everyone is trying to give the originator of this thread the best advice I'm sure, but the object is not to suggest replacement of sensors as the obvious solution. The sensor is responsible for sending the ECU the signal that something is wrong. The ECU puts the engine light on . The diagnostic reader says that the cam sensor has indicated a problem. It doesn't mean that the cam sensor is broke or that it is the problem.
The string originator is looking for help with analysis of his problem and some direction from any of us whom may be knowledgeable about the problem in question to help him to determine it's root cause
I Agree - lets get this thread back on track. Pelican parts vs Bav Auto vs BMW doesn't help.
This is my final two penny worth on this subject other than to advise if your first diagnosis is wrong, get to the BMW doctor before you spend th farm. Bimmers are complicated.
JJEFF
felix2

Posts: 290
Registered: 02/12/04
Re: P0340 Camshaft Position Sensor Intake side
Posted: Aug 12, 2008 1:11 AM   in response to: JJEFF in response to: JJEFF
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JJEFF - the original poster's problem did go away when he used a sensor from BMW as opposed to one from Bav Auto. And when I see Bav Auto's sensor at half the price of one their competitors in the mail order aftermarket I do have to wonder about the brand/source - surely it can't be the same?

From my recollections on this forum and others the M52TU and M54 engines don't seem to have many VANOS problems (other than failing seals but that doesn't seem to trigger a code) but they do seem to consume camshaft position sensors. The code flags up failed sensors, sensors are replaced and the codes go away and the owners are happy.

Apologies if I'm stating the obvious but the diagnostics recognise the difference between a sensor providing no input and a sensor providing an input that's out of the expected range for the current engine conditions.
E 46er

Posts: 33
Registered: 07/10/06
Re: P0340 Camshaft Position Sensor Intake side
Posted: Aug 13, 2008 10:57 AM   in response to: felix2 in response to: felix2
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Yeah I did read and saw the VANOS unit failing because of the seals and exhibiting those symptoms about cold starts and the erratic idling, and just changing the VANOS for another one from BMW will eventually fail also because the seals aren't made of a material that can withstand the heat over time. Check this site out I stumbled across during my little research about the VANOS. http://www.drvanos.com/index2.html.
rodo_330

Posts: 9
Registered: 08/04/08
Re: P0340 Camshaft Position Sensor Intake side
Posted: Aug 14, 2008 8:16 PM   in response to: E 46er in response to: E 46er
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we`ll see after the wkd... I`m getting a new BMW original sensor for my 330 and keep you posted on the results
thanks to everyone for your thoughts
rodo_330
rodo_330

Posts: 9
Registered: 08/04/08
SO FAR SO GOOD,,, Re: P0340 Camshaft Position Sensor
Posted: Aug 18, 2008 8:31 PM   in response to: rodo_330 in response to: rodo_330
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we installed two brand new BMW original sensors on our 2 330i 2001 and so far the results show the issue were the sensors. By now we should had experinced problems but haven`t so far... no false starts, no issues with power/acceleration.
more info at the end of the week just to be positive.
later
rodolfo
rodo_330

Posts: 9
Registered: 08/04/08
Re: SO FAR SO GOOD,,, Re: P0340 Camshaft Position Sensor
Posted: Aug 24, 2008 11:46 AM   in response to: rodo_330 in response to: rodo_330
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Attachment DSC_4165.JPG (111.4 KB)
OK guys, in both cases by changing the sensors for BMW sensors solved the problems we described above. I`d say the subject is closed now we have to get back to BAV Auto for reimbursement, which they have already said tehy would... will see
thanks to everyone for your help and comments
rodo_330
MSG

Posts: 2
Registered: 08/30/08
Re: P0340 Camshaft Position Sensor Intake side
Posted: Aug 30, 2008 5:29 PM   in response to: E 46er in response to: E 46er
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I'd like to thank all of you for your help, especially E 46er since I saw his post first. I've experienced all the similar intake camshaft codes and I replaced BOTH (intake & exhaust) with BavAuto sensors. That cleared the original intake code but the new BavAuto sensor created a trouble on the exhaust. I put the original exhaust back in and all was good. Ten months later, I have an intermittent trouble on the Bav intake. Bav sent me a free replacement but out of the box it produces a trouble code on EVERY start.
I'm checking Pelican as recommended here and will let you know when I receive it.
Thanks Again.
rodo_330

Posts: 9
Registered: 08/04/08
Re: P0340 Camshaft Position Sensor Intake side
Posted: Aug 30, 2008 7:07 PM   in response to: MSG in response to: MSG
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I`d just go with the BMW genuine, it is only $128+tax (here in chile is $500 at the dealer) and it will solve the problem right away and you`ll enjoy the car the way you should!!!
TXVAFSAE e46

Posts: 1
Registered: 09/09/08
Re: P0340 Camshaft Position Sensor Intake side
Posted: Sep 9, 2008 9:51 PM   in response to: rodo_330 in response to: rodo_330
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NM, read through page 2. Thanks to everyone who posted comments, I'm going through some of these issues and this thread has been very helpful.

Message was edited by: TXVAFSAE e46

MSG

Posts: 2
Registered: 08/30/08
Re: P0340 Camshaft Position Sensor Intake side
Posted: Sep 15, 2008 3:25 PM   in response to: TXVAFSAE e46 in response to: TXVAFSAE e46
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Okay! Final message from me about the Bav Auto camshaft sensors. I just want to assist anyone else having these problems. I ordered the OEM BMW sensor from Pelican and the code is clear! You decide. I will still order plenty of other supplies from Bav.
Thanks for your help and I hope this helps others.
Laut1

Posts: 1
Registered: 06/27/09
Re: P0340 Camshaft Position Sensor Intake side
Posted: Jun 27, 2009 1:42 PM   in response to: MSG in response to: MSG
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Great info. I have a 98 M3 with the "check engine" light on. Using the Peake Research tool it comes up with Code 16-41 "camshaft position sensor". The car starts fine and idles fine. If the sensor was bad shouldn't it start and idle poorly? I would appreciate any information.
ShadowF

Posts: 6
Registered: 05/01/08
Re: P0340 Camshaft Position Sensor Intake side
Posted: Jul 4, 2009 10:30 PM   in response to: Laut1 in response to: Laut1
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Hello boys, just want to say thank you all for very useful information in this post, I have ordered Camshaft sensor for intake side from Pelican, used my Bentley manual for reference and replaced it today. Cleared check engine light, and my bimmer pulls better and does not stall anymore, hope it stays that way :). Thank you guys :)..

Cheers

Jack V
Binghamton, NY
Bimmeronly

Posts: 2
Registered: 10/21/14
Re: BMW Automotive Sevices
Posted: Oct 23, 2014 2:14 PM   in response to: E 46er in response to: E 46er
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Bimmer Only is recommended choice for BMW Repair and Maintenance, prominently our BMW Vanos Repair services are best fit for the internal performance of your BMW Engine

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