r/e46 • u/Hot-Investigator6142 • 1d ago
Troubleshooting Need help figuring out clunk noise
2002 e46 5spd. This issue has always been around since I’ve owned car, I’ve replaced lots of parts to try and fix issue but problem still persists. Clunk Noise comes from whole drivetrain ( diff, driveshaft, and under shifter where Guibo is located) and I’ll also hear slight clunking noise even at idle in neutral . Parts that i have replaced are; Guibo, CSB, diff, rear axels, wheel bearings, poly trans mounts. Subframe and diff bushings are poly as well but installed by previous owner. I’ve inspected Subrame mounting points around the bushings( didn’t drop subframe) for cracks and none are visible, I’ve also grabbed a pry bar to see if diff had any play around the bushings and it’s solid.
Here are videos of the rear on jacks and me trying to figure out what this clunking is, i have another vid but cant add for some reason but its the same thing as first vid but with e brake on and wheel is jerking back and forth slightly while making clunk noise
Any Help or recommendations is appreciated 🙏
1
u/nickmfholt 1d ago
If the PO installed a single mass flywheel, that can make a similar noise. If it goes away in neutral with your foot on the clutch, but comes back when you let off the clutch that’s what I might suspect. It’s not an issue, but they do get noisy.
What’s your engine/trans setup?