Question about BMW X3 Series

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While in neutral and rolling with about 20-30 km , i hear a pounding sound which seems to be coming from from the rear axle of the car (x-3) ..please i would appreciate any suggestions on what it be from thank you

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  • kostas_tzoni Nov 12, 2010

    while in neutral and rolling with about 20-30 km , i hear a pounding sound which seems to be coming from the rear axle or deferential of the car (x-3BMW ) ..please i would appreciate any suggestions on what it may be from. thank you
    PS i have checked the exhaust to see if is loose and there are no loose components.

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If it's rear wheel drive, it could be the universal joint in the driveline, or the braking system or bearing making noise.

Posted on Nov 12, 2010

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It sounds as if the exhaust system has a broken hanger that is allowing the exhaust to hit the chassis or other are under the vehicle. With the engine cool, and making sure the exhaust is not hot, get under the vehicle and shake the exhaust to simulate the noise. While under the vehicle, also check for possible loose suspension components.

Posted on Nov 11, 2010

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