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E60Gator 01-21-2013 02:46 PM

Help Please! ARS Creaking noise?
Hello everyone! I am a first time owner of a BMW. I purchased a used 2010 535i in late November. I absolutely love the car, but in the two months I have owned it, it has been in the shop longer than I have had it at home. The dealer I bought it from had a 30 day warranty, and I purchased an extended warranty, so it hasnít cost me anything for the repairs. The car repair was subbed to my local BMW dealership and so far they have replaced out all six fuel injectors and both thigh support motors in the seats.

I have one nagging issue I was hoping to get some help on. I hear a faint noise when I come to a complete stop. It is hard describe, but it almost sounds like a ship creaking or a guitar string being wound too tight.

- It doesnít seem to make the noise until the car has been driven for 10 to 15 minutes.
- Once it starts it is consistent, it makes the noise every time I make a complete stop. It doesnít matter if it is a hard stop or slow and gentle.
- The noise starts about half a second after a complete stop; it lasts about 1.5 seconds.
- The SA and I pinpointed the sound as coming from the right rear speaker area.

I ruled out the door seals sound mentioned in the forum as a possible source because it still makes the sound with the windows cracked. The BMW SA also stated he is familiar with the door seal sound and this was not it. The dealership inspected the rear brakes and suspension and couldnít find anything wrong. The BMW SA and shop foreman state the noise is normal and is the ARS adjusting itself at each stop. They stated they had another 2010 5 series with ARS in the shop and it was making the same noise, and they pulled the ARS fuse on my car and didnít hear the sound. Because the car is no longer under factory warranty, I have no reason to believe the BMW dealership is trying to get out of doing something. They would get paid for the work. I do have a problem believing a luxury car would make such an annoying noise ďnormallyĒ.

I think the car they were comparing it to may have had the same problem, and they possibly pulled the ARS fuse on my car while it was cold and wasnít making the noise anyway.

The dealer I purchased the car from and the BMW dealership are trying to find another 2010 5 series with ARS so I can compare the sound. I donít want to take back possession until this is fixed because I donít know if the dealership will fix it for free down the road, and it may not be a covered item in my extended warranty.

My question to the forum is does anyone have any ideas about what may be causing this sound, and if you have ARS on a LCI E60, is this a normal ARS noise?

mkarner79 01-21-2013 09:07 PM

I have a high pitch guitar string noise coming from my driver side seat belt assembly. Super annoying and sounds similar to what you describe, including the timing. I figured it was a squeaky spring inside the belt tensioner. Eventually it will bug me enough to take apart the B pillar molding to fix it.

E60Gator 01-22-2013 07:47 PM

Thanks mkarner79. I didnít even consider the seat belt tensioner! I plan on going to the dealership tomorrow to test out another E60 with ARS. I will definitely check that out.

mkarner79 01-24-2013 06:54 PM

I'd be interested to hear what they find is causing the noise. Keep us posted.

E60Gator 01-27-2013 06:24 PM

Well I went back to the BMW dealership and test drove another E60 with ARS and it was making the same noise, just a little quieter. So I guess itís kind of normal. Or all three cars have the same problem.

I have the car back and am going to investigate other causes for the noise. If I can pinpoint it, the dealer I bought it from (non-BMW) said they would still fix it.

I think I am going to start by pulling the ARS fuse and seeing if it still makes the noise. Also, the area the sound is coming from is right where the seat belt tensioner is. I will let you know if that ends up being the culprit.

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