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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E60 (2004 - 2010)

E60 (2004 - 2010)
BMW 5-Series (E60 chassis) was first seen in the Unites States in the fall of 2003 with a 2004 Model Year designation. The E60 is now available as a 528i, 528xi, 535i, 535xi, 550i and a 535xi sports wagon! -- View the E60 Wiki

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  #1  
Old 09-17-2013, 02:45 PM
spitfire23 spitfire23 is offline
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Mein Auto: 02 530i, 07 530xi
2007 530xi Cold Start Surging

I'm running out of ideas and I'm hoping you all may have some suggestions. I had my battery and alternator tested a few weeks back and was told the battery was low and the alternator had a bad diode.

The battery is an aftermarket Interstate battery purchased 2 years ago by the PO. Since the battery isn't that old, I just changed out the alternator with a rebuilt Valeo alternator from Napa. After doing this, the next morning the car began surging a few minutes after starting up. It only happens in the morning after sitting all night. After about 4 miles of city driving, the surging begins. If I continue to drive either city or highway, the surging eventually stops and is fine until the next day.

I checked for tears in the intake hose etc, checked the connector for the alternator and all seem to be fine and connected. No rips or holes that I can see.
I use premium gas exclusively and was going to try using seafoam to see if this helps and also clean the MAF. But really don't think this will make a difference.

This morning, the car took a long time to start up. Note that I did not have any surging or long start ups before I changed the alternator.

Is there anything else that I should check?

Attached are photos of the original and replacement alternators. (Brand: Valeo)
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  #2  
Old 09-17-2013, 04:38 PM
pcy pcy is offline
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Mein Auto: '06 530i, '07 C280, ML320
If I were you, I'd take a voltmeter and measure the alternator output while the surging symptoms are there. Measure the voltage between terminal under red cap (under the hood) and any ground/chassis connection. While the car is running, voltage should read around 14.1V. Significantly higher [or lower] than that will tell you the alternator is not good.

How far do you drive every day? If the car is not driven, alternator may not be getting enough time to recharge/replenish the battery.
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  #3  
Old 09-18-2013, 07:15 PM
spitfire23 spitfire23 is offline
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Re: 2007 530xi Cold Start Surging

Quote:
Originally Posted by pcy View Post
If I were you, I'd take a voltmeter and measure the alternator output while the surging symptoms are there. Measure the voltage between terminal under red cap (under the hood) and any ground/chassis connection. While the car is running, voltage should read around 14.1V. Significantly higher [or lower] than that will tell you the alternator is not good.

How far do you drive every day? If the car is not driven, alternator may not be getting enough time to recharge/replenish the battery.
I had the voltage checked at Napa and it measured 14.1. They were looking for at least 14.3 but said it was acceptable.
As far as daily driving, I drive 84 miles round trip every day. Drop kids off at school 10 miles RT which is where the surging starts. I stop at home, its still surging until I hit highway speeds and then reach work, 37 miles later it has stopped until next morning. Past few days it is starting again when I leave work too. Get home and its fine.
I'm headed to fill up and use seafoam to see if it helps this evening.

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  #4  
Old 09-18-2013, 08:01 PM
schpenxel schpenxel is offline
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Any codes? I would start with looking at the CCV system and check for intake leaks.. just visually looking may not be good enough.
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  #5  
Old 09-18-2013, 10:20 PM
spitfire23 spitfire23 is offline
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Re: 2007 530xi Cold Start Surging

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Originally Posted by schpenxel View Post
Any codes? I would start with looking at the CCV system and check for intake leaks.. just visually looking may not be good enough.
No codes at all. No CEL, nothing. I'll check CCV.. I gotta look that up :-) I've only known E39s before.. lol and the setup is different.

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  #6  
Old 09-19-2013, 06:02 AM
pcy pcy is offline
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Quote:
Originally Posted by spitfire23 View Post
I had the voltage checked at Napa and it measured 14.1. They were looking for at least 14.3 but said it was acceptable.
As far as daily driving, I drive 84 miles round trip every day. ...
Hi, can you check the voltage WHILE the car is surging? That is, start driving the car in the morning until the surging starts; pull over and measure the voltage with any voltmeter. I am thinking the battery or IBS is contributing to this surge. You can rule this out if the voltage is stable at around 14.1 even DURING the surge.

On N52, the crankcase ventilation system includes a hose from valve cover to oil separator (under the intake manifold) and another hose from oil separator to the oil pan.
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  #7  
Old 09-19-2013, 10:54 AM
spitfire23 spitfire23 is offline
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Location: Seattle area
 
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Quote:
Originally Posted by pcy View Post
Hi, can you check the voltage WHILE the car is surging? That is, start driving the car in the morning until the surging starts; pull over and measure the voltage with any voltmeter. I am thinking the battery or IBS is contributing to this surge. You can rule this out if the voltage is stable at around 14.1 even DURING the surge.

On N52, the crankcase ventilation system includes a hose from valve cover to oil separator (under the intake manifold) and another hose from oil separator to the oil pan.
I'll try checking the voltage during the surging this weekend to see if I can isolate the problem to the battery.
Seafoam did improve my mpg, too bad I didn't know I had improvement to make there.. lol
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  #8  
Old 09-19-2013, 11:00 AM
Law2493 Law2493 is offline
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Re: 2007 530xi Cold Start Surging

What type of battery are you using. That year they said agm is the best battery for the car

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  #9  
Old 09-19-2013, 12:02 PM
spitfire23 spitfire23 is offline
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Location: Seattle area
 
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Re: 2007 530xi Cold Start Surging

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Originally Posted by Law2493 View Post
What type of battery are you using. That year they said agm is the best battery for the car

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It's a interstate AGM. PO put it in. But I don't know if it's registered. I have an INPA cable on order just waiting for it to arrive

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  #10  
Old 09-19-2013, 01:00 PM
Law2493 Law2493 is offline
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Re: 2007 530xi Cold Start Surging

AGM is a good battery. I think you should check plugs and coils and at last resort I reccomend going to the stealer to see how much charge you're getting. I got 763 out of 850 cca. For a used one. You should get around that option

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  #11  
Old 09-21-2013, 02:10 PM
spitfire23 spitfire23 is offline
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Got my INPA cable today. See lots of posts to set up the software, but not sure which one is the best one to start with. I have a WIN7 64bit laptop with large HD and memory that I will use for this task. Just not sure which set of instructions to start with.
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  #12  
Old 09-21-2013, 02:39 PM
schpenxel schpenxel is offline
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This is the one I would follow for actually installing the software (use this one for the download also):

http://bmwcoders.com/forum/bmw-gt1-o...-software-328/

However, you also need to setup your computer for the cable. The instructions for that can be found on the website where you bought the cable

http://www.osefactory.com/tools/k+dc...ion_Manual.pdf

http://www.ftdichip.com/Drivers/VCP.htm

Last edited by schpenxel; 09-21-2013 at 02:40 PM.
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  #13  
Old 09-21-2013, 10:57 PM
spitfire23 spitfire23 is offline
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Location: Seattle area
 
Join Date: Aug 2013
Posts: 40
Mein Auto: 02 530i, 07 530xi
Quote:
Originally Posted by schpenxel View Post
This is the one I would follow for actually installing the software (use this one for the download also):

http://bmwcoders.com/forum/bmw-gt1-o...-software-328/

However, you also need to setup your computer for the cable. The instructions for that can be found on the website where you bought the cable

http://www.osefactory.com/tools/k+dc...ion_Manual.pdf

http://www.ftdichip.com/Drivers/VCP.htm
Thank you! It took the rest of the afternoon to get it all set up, but it is working. I couldn't replicate the surging problem long enough to get someone to test the battery, but will try again tomorrow.

However, now that I have these new tools, I'm a little depressed.
This car had some codes, camshaft sensor and some other stuff which was no surprise nor big deal.

However, I tapped into my E39 too and found that my torque converter clutch has too much slip (048). So both cars have tranny related issues... *$%^%$#$%^&* me!
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  #14  
Old 09-22-2013, 11:52 AM
spitfire23 spitfire23 is offline
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Join Date: Aug 2013
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Mein Auto: 02 530i, 07 530xi
Re: 2007 530xi Cold Start Surging

Tested the battery this morning with the OBC. Battery voltage averages about 14.5-14.8 then drops to as low as 12-13v and as high as 15.5V when car is surging. It continues to fluctuate even under acceleration. My thought is that the battery isn't registered and needs to be... if it is salvageable. .its only 2.5 years old

How can I check the battery registration? Click image for larger version

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  #15  
Old 09-23-2013, 06:34 AM
pcy pcy is offline
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Mein Auto: '06 530i, '07 C280, ML320
15.5V is too high. Voltage regulator [that is attached on the back of alternator] is not doing it's job.

If it's my car, I'd swap out the alternator as well as replace the battery and register the battery and then see if the surging continues. Since you just got the alternator, warranty should provide you with a replacement one.

Last edited by pcy; 09-23-2013 at 06:35 AM.
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