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E89 Z4 (2009 - current)

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  #1  
Old 08-18-2013, 06:07 PM
jbaker jbaker is offline
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Location: OHIO
 
Join Date: Mar 2006
Posts: 31
Mein Auto: Z4 35is
Noisy Fuel Pump Hum 3.5is

What is an acceptable noise level for the electric fuel pump in the passenger side fuel tank?

If I have my radio down low and am stopped, seems noisy to me. Only when I'm driving with the top down, the road noise drowns it out. Any one else have this problem?

This is on a new 740 mile 2013 Z4 3.5IS.

Thanks
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  #2  
Old 08-19-2013, 07:21 PM
John151 John151 is offline
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Location: Palatine, IL
 
Join Date: Oct 2008
Posts: 27
Mein Auto: Mazda Miata (don't laugh)
I have a 2011 3.0 and can also hear my fuel pump at times. Seems out of place on such a sophisticated car, but not a big deal at the same time.
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  #3  
Old 08-26-2013, 06:28 PM
jeremywitte jeremywitte is offline
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Location: Dallas / Fort Worth
 
Join Date: May 2013
Posts: 15
Mein Auto: 2014 BMW Z4 sDRIVE28i
Question

I have the same issue, and it is currently in for service. I noticed it start ~500 miles.

There is a 3 week back order for a new fuel pump for a '14 28i - so I am going to pick the car back up from the dealer tomorrow. SA said it is working fine, but they will replace once the pump arrives.
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  #4  
Old 08-28-2013, 07:29 AM
Caliguy Caliguy is offline
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Location: Murrieta
 
Join Date: Jul 2013
Posts: 18
Mein Auto: 2014 Z4 Valencia Orange
I have a 2014 s28i and I had the same problem, but at first couldnt figure out what was making the noise. When I mentioned it sounded like it was coming from under the passenger seat they had me bring it in. I work at a BMW dearlership in California and was able to stay close to what was going on. Sure enough it was the fuel pump. I too was told three weeks delivery on a new pump. It came in right a stated and was replaced. Wow what a difference, nice and quiet now. So hang tight you be very happy once they put in the new one. I haven't had any issues since.

Last edited by Caliguy; 08-28-2013 at 07:30 AM.
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  #5  
Old 09-27-2013, 08:29 AM
kbtnh1 kbtnh1 is offline
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Location: New Hampshire
 
Join Date: Jul 2012
Posts: 8
Mein Auto: Z4
Question Fuel pump noise...part #

Is the fuel pump in the 2014 Z4 the same one as the 2013 Z4? I have a 2013 Z4 28i with an extremely loud fuel pump! My service department refuses to replace it! They state that replacing will not stop the noise.

If at all possible please provide me with the part number that your service departments have ordered for you. My fuel pump is loud enough to be heard over the radio with the roof retracted!

Any information that you can provide me would certainly help with my ongoing discussion with my NH BMW dealership.

Beautiful car, horrible noise!

Thank you
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  #6  
Old 09-27-2013, 08:35 AM
jeremywitte jeremywitte is offline
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Location: Dallas / Fort Worth
 
Join Date: May 2013
Posts: 15
Mein Auto: 2014 BMW Z4 sDRIVE28i
I just got a call from my SA that the pump has arrived and scheduling to have it installed next week. I will ask if it is the same as '13 model.
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  #7  
Old 10-02-2013, 09:52 AM
kbtnh1 kbtnh1 is offline
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Location: New Hampshire
 
Join Date: Jul 2012
Posts: 8
Mein Auto: Z4
Thank you for your help!
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  #8  
Old 11-07-2013, 07:54 AM
Boniita1 Boniita1 is offline
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Location: Utah
 
Join Date: Nov 2013
Posts: 4
Mein Auto: 2013 z4
2013 z4 fuel pump problems

I have new 2013 z4 28i less than 3000 miles, purchased May 1. Has been in shop twice the 1st time at one month, fuel pump replaced twice and awaiting third pump. Supposedly bmw knows re this issue and working on a new pump. Was told two months ago would get new pump in about a month, still waiting. Noise is loud and embarrassing. I believe this was a problem from the beginning but I did not notice right away, was having too much fun playing with the car. Dealer told me they had not seen this problem in other Zs but this forum says otherwise. Very frustrated.
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  #9  
Old 11-07-2013, 08:40 PM
kbtnh1 kbtnh1 is offline
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Location: New Hampshire
 
Join Date: Jul 2012
Posts: 8
Mein Auto: Z4
Horrible Noise

Sorry to hear you have the same "horrible" noise! My dealer is saying that BMW is aware of the issue, but dealer REFUSES to change the fuel pump. I am planning on keeping on top of this issue with my dealer. Best of luck with your Z4 and keep us informed of any news about the redesigned fuel pump.
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  #10  
Old 11-11-2013, 04:27 PM
Boniita1 Boniita1 is offline
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Location: Utah
 
Join Date: Nov 2013
Posts: 4
Mein Auto: 2013 z4
kbtnh1,Thanks for the sympathy.

My z4 is in shop as of Friday. The new and improved(?) fuel pump is being put in as well as taking care of the brake recall issue, yes I am one of the 76,000+ z4s included in that recall! Fingers crossed this fixes my noise issues.
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  #11  
Old 11-12-2013, 01:11 PM
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skier skier is offline
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Location: Arizona
 
Join Date: Oct 2004
Posts: 1,066
Mein Auto: '11 Z4 35is
I have a 2011 35is, with 21K miles. No issues with fuel pump.
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  #12  
Old 11-20-2013, 08:35 PM
Boniita1 Boniita1 is offline
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Location: Utah
 
Join Date: Nov 2013
Posts: 4
Mein Auto: 2013 z4
My fuel pump replaced! Sounds like my little roadster again! Gotta give props to my dealer, they got special permission to fix brake recall issue at the same time. I was losing faith in BMW but they may just have restored it. I asked if the fuel pump they were installing was the pump in 2014 and was told this was a redesign to fix my 2013 problems, not sure what that means but appears problem solved.
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  #13  
Old 12-08-2013, 12:05 PM
Reshdiu Reshdiu is offline
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Location: Northants
 
Join Date: May 2011
Posts: 39
Mein Auto: 3.5is z4
i have had a little tapping noise since i bought my z4 3.5is - i assume this is the tappets - 45k miles onstill love it
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  #14  
Old 12-08-2013, 01:49 PM
Boniita1 Boniita1 is offline
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Location: Utah
 
Join Date: Nov 2013
Posts: 4
Mein Auto: 2013 z4
2013 z28i

My noise was not a tapping but more like a whistle/whining noise and very obvious from outside the vehicle as well as inside (the outside noise was embarrassing). My new fuel pump appears to have corrected the noise issue its has only been a month and now I have to store my car for the winter but I think all is as it should be! I love how "mean" my car sounds!
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