Knocking noise

Toty · 10-06-2024, 02:15 PM

I have this annoying knocking noise while driving. To me it sounds quite high up and near the cabin, but it could be something in the suspension as well.

https://streamable.com/3ggjb9

My sway bar links were worn, so I replaced them with Lemförder links, but that didn't fix it. However, I have read that some Lemförder parts can be manufactured in China and have questionable quality, but I'm not sure if they are worth replacing again (any brand suggestions?).

I also replaced the three strut bar bolts because the center one was not original, but that didn't fix it either.

Phil325i · 10-07-2024, 02:56 AM

Get the car in the air and take a pry bar to check for play in all the bushes in your suspension joints and steering bushes. Check strut top mounts for play too.

whyzee125 · 10-07-2024, 09:34 AM

Top mounts, sway bar bushings, control arms and or control arm mounting bolts are all possible culprits.

10-06-2024, 02:15 PM	#1
Toty Registered 0 Rep 1 Posts Drives: BMW E92 LCI 330i Join Date: Oct 2024 Location: Santiago iTrader: (0)	Knocking noise I have this annoying knocking noise while driving. To me it sounds quite high up and near the cabin, but it could be something in the suspension as well. https://streamable.com/3ggjb9 My sway bar links were worn, so I replaced them with Lemförder links, but that didn't fix it. However, I have read that some Lemförder parts can be manufactured in China and have questionable quality, but I'm not sure if they are worth replacing again (any brand suggestions?). I also replaced the three strut bar bolts because the center one was not original, but that didn't fix it either.
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10-07-2024, 02:56 AM	#2
Phil325i Brigadier General 635 Rep 3,209 Posts Drives: E92 325i MSport Coupe Join Date: Apr 2012 Location: UK South East iTrader: (1) Garage List 2009 BMW 325i Coupe [6.00]	Get the car in the air and take a pry bar to check for play in all the bushes in your suspension joints and steering bushes. Check strut top mounts for play too. __________________ E92 pre-LCI 325i - Ohlins R&T; H&R spacers; M3 strut brace; Swift thrust sheets; 3 x chassis braces; diff brace; N53 V-brace; 034 subframe inserts; BMS clutch stop; BMS CDV; RE g/box mounts; Delrin shift bushes; Saikoumichi OCC; Cyba scoops; BMW Perf Exhaust; HEL s/steel brake hoses; M3 rear spoiler; Recaro Sportster CSs; M3 white dash LEDs; LED Angels; LED side repeaters; BMW Perf black grille; CSL reps; SSDD carbon diffuser; Monster Wrap black roof/clear front
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10-07-2024, 09:34 AM	#3
whyzee125 Brigadier General 1986 Rep 4,005 Posts Drives: Dinan stage 2 335i Join Date: Jul 2014 Location: Chattanooga Tn iTrader: (0)	Top mounts, sway bar bushings, control arms and or control arm mounting bolts are all possible culprits.
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