A4 allroad (B8 Platform) Discussion Discussion forum for the B8 Audi A4 allroad, produced from 2012-present

Strange knocking from passenger / rear over sharp bumps

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Old 01-11-2018, 12:05 PM
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Default Strange knocking from passenger / rear over sharp bumps

My '14 allroad has developed a strange noise from the right rear that can only be described as a knock, It does not happen over every bump, and it happens most when only the right rear hits the bump. Seems like a sway bar issue, though on inspection everything is tight and intact.

to my ears it sounds like either a worn ball joint, or a loose shock mount. Again, it only happens on very sharp bumps. I would say it sounds like there's a golf ball banging on stuff, but there isn't. I drove it with everything removed from the trunk (even the tools, jack, tire, compressor, side panels and roll cover) and it still made the noise.
Old 01-16-2018, 05:11 PM
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Figured it out - the bump stop on the right rear shock wasn't staying up in it's place in the upper shock mount. Gave it a little wrap with some electrician's tape, and it's holding in place. No more crazy noises.
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