On my 2013 once in a while, I'll hear, what I can only describe as a thud or clunk. Very rarely occurs and I can feel it in the seat of my pants so I'm thinking something on the rear suspension or ??? Checked everything first time I heard/felt it and all suspension parts (front and rear) seemed in perfect condition. 74k miles overall and no other issues.

Any ideas or suggestions?

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'01 740i Sport MKIV, Quad Brake Lights, Bi-Xenon retrofit, HID Fogs Dinan 7 Struts, Springs, camber plates, Intake, MAF, CAI, Throttle Body, NBT Retrofit, Strong Strut


'99 318ti Titanium Silver; '97 318ti Boston Green; '13 X5 3.5i Saphire Black Metallic
'84 633csi Black (sold); '88 325iC Black (sold); '97 740iL Black(sold); '01 740iS Black (sold);'97 318ti White (sold); '08 X5 4.8i Titanium Silver (sold); '96 318ti Alaska Blue (sold)