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X3 F25 (2011 - current)
The latest X3 brings added style and new features to the BMW's mid-sized SUV. Talk about the BMW F25 X3 with other X3 owners now!

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Old 08-18-2013, 12:59 PM
vptrails vptrails is offline
Registered User
Location: Rhode Island
Join Date: Aug 2011
Posts: 31
Mein Auto: 2011 X3 X35i
Rotational Thumping Sound

Lately, I've been noticing a rotational thumping kind of sound heard mostly between 25 - 30 mph coming from under the vehicle. It sounds like its coming from below the accelerator pedal. It doesn't matter if I'm coasting or accelerating (although it could be hear better when coasting due to normal engine sounds with acceleration).

When I took by 2011 X3 to the dealer, the tech heard it. Afterward the tech noted that similar X3 with similar mileage (mine has about 18,000 miles on it) could be heard making the same sound.

From what I've gathered online from different (and sometimes unrelated forums) is people mentioning the following as culprits but its like finding a needle in a haystack:

Wheel bearings
Axle shafts
CV Joint
Cracked brake rotor
Loose lug nuts
Broken tire belt
Drive Shaft
Loose brake pad
Warped Rotor
Transmission mounts
Engine Mounts
Transmission cover plugs in place

Anyone else experience this or have any suggestions?
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Old 08-18-2013, 03:56 PM
Teemo Panda's Avatar
Teemo Panda Teemo Panda is offline
Bimmefest Plasti-Dip Guru
Location: New Jersey
Join Date: Dec 2011
Posts: 851
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Mein Auto: E53, E46-M3, E70, F25-X3
Rotational Thumping Sound

I have 18.4k on my 2013 X3, so far, I haven't experienced any of the sound you are hearing.

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