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Front suspension rattly knocking noise over bumps
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Front suspension rattly knocking noise over bumps
Can't hear rattle sound when driving. But knocking sound.
- kis
- Lifer
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Front suspension rattly knocking noise over bumps
The dust shield is pretty notorious for corroding away. Most of our cars are between 15 and 20 years old...
Just unsure whether it would rattle. It should be more a scraping sound. But one to check out before you look at forking out any more money?
Just unsure whether it would rattle. It should be more a scraping sound. But one to check out before you look at forking out any more money?
My E85 Z4 3.0i SMG
BMW Family History (past and present):
1 Series - E87
3 Series - E46 Coupe, E46 M3, E90 (x3)
4 Series - F36, F82 M4
5 Series - E34 (x2), E39
7 Series - E32
X5 - E53, E70
X6 - E71
BMW Family History (past and present):
1 Series - E87
3 Series - E46 Coupe, E46 M3, E90 (x3)
4 Series - F36, F82 M4
5 Series - E34 (x2), E39
7 Series - E32
X5 - E53, E70
X6 - E71
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Front suspension rattly knocking noise over bumps
Dust shield looks ok, it definitely at the wheel on both sides. Can't hear it when driving. Just the knocking sound. Going to sort sway bar bushes out next week. Have renewed control arms drop links and strut mounts. I have a got a wheel wobble through steering wheel, whether the two are linked not sure, been told front wheels are slightly buckled,
- kis
- Lifer
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Front suspension rattly knocking noise over bumps
I'm doubtful that you would get that from a sway bar? Bushes are cheap. And should be easy to install. So you will know shortly.
If that fails, what about the wheel bearing?
If that fails, what about the wheel bearing?
My E85 Z4 3.0i SMG
BMW Family History (past and present):
1 Series - E87
3 Series - E46 Coupe, E46 M3, E90 (x3)
4 Series - F36, F82 M4
5 Series - E34 (x2), E39
7 Series - E32
X5 - E53, E70
X6 - E71
BMW Family History (past and present):
1 Series - E87
3 Series - E46 Coupe, E46 M3, E90 (x3)
4 Series - F36, F82 M4
5 Series - E34 (x2), E39
7 Series - E32
X5 - E53, E70
X6 - E71
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Front suspension rattly knocking noise over bumps
If it was a constant rattle whilst driving, I would say top mounts. But I'm unsure if you can't hear it when driving.
Sapphire Black E86 LN56 ZKJ Purchased Jan 2021 - Sold June 2022
Bilstein B12 Pro Kit
Eisenmann Quad Exhaust
BMW Z4M Rear Bumper
Bilstein B12 Pro Kit
Eisenmann Quad Exhaust
BMW Z4M Rear Bumper
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Front suspension rattly knocking noise over bumps
can you see any obvious cracking on top mount rubber?
If the forum helped you, why not help the forum back. Thats the Z4 way!
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EWS Delete PM me
Coding- airbags etc PM me
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Front suspension rattly knocking noise over bumps
New top mounts new control arms new drop links. Unless wheels not balanced properly or buckled
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Front suspension rattly knocking noise over bumps
Could just be loose dust sheild.
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Front suspension rattly knocking noise over bumps
In relation to this topic all suspension parts renewed, unfortunately need a steering rack. Got play on the nearside.
Any ideas where to get steering rack from. Preferably new (not genuine). Any info much appreciated. Thanks
Any ideas where to get steering rack from. Preferably new (not genuine). Any info much appreciated. Thanks
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Front suspension rattly knocking noise over bumps
I have a similar knocking noice coming from the front end, seems more prevalent on the drivers side but could just be because i am closer to it. Knocking seems to happen most when going over uneven ground, like a wobbling noise, not so noticeable just going over a speed bump.
Have had new struts/springs, wishbones, wishbone bushes (Powerflex) and had all other bushings checked when work was done, none needed replacing but did upgrade the ARB ones anyway (Powerflex again).
My next thought was the engine mounts but i'm not sure how best to check them as all threads just seem to be for the Z4M, which assume can't be too dissimilar, will report back if i find anything in case it helps
Have had new struts/springs, wishbones, wishbone bushes (Powerflex) and had all other bushings checked when work was done, none needed replacing but did upgrade the ARB ones anyway (Powerflex again).
My next thought was the engine mounts but i'm not sure how best to check them as all threads just seem to be for the Z4M, which assume can't be too dissimilar, will report back if i find anything in case it helps
2008 BMW Z4 3.0SI Sport Coupe
2013 VW T5.1 Camper - Built not bought
2013 VW T5.1 Camper - Built not bought
- enuff_zed
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Front suspension rattly knocking noise over bumps
Have you checked that the strut braces are really tight. Just a quarter turn is enough for them to knock.Phippy wrote: ↑Wed Jun 08, 2022 6:41 pm I have a similar knocking noice coming from the front end, seems more prevalent on the drivers side but could just be because i am closer to it. Knocking seems to happen most when going over uneven ground, like a wobbling noise, not so noticeable just going over a speed bump.
Have had new struts/springs, wishbones, wishbone bushes (Powerflex) and had all other bushings checked when work was done, none needed replacing but did upgrade the ARB ones anyway (Powerflex again).
My next thought was the engine mounts but i'm not sure how best to check them as all threads just seem to be for the Z4M, which assume can't be too dissimilar, will report back if i find anything in case it helps
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Front suspension rattly knocking noise over bumps
I peeled the steering gaitor got hold of steering itself and its definitely got play in it. Compared to other side definitely feel the difference. I have renewed everything but.
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Front suspension rattly knocking noise over bumps
enuff_zed, I will give it a go, do you mean the 3 bolts in the head or the bars that run to the centre by the windscreen?
2008 BMW Z4 3.0SI Sport Coupe
2013 VW T5.1 Camper - Built not bought
2013 VW T5.1 Camper - Built not bought
- enuff_zed
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Front suspension rattly knocking noise over bumps
I mean the diagonal bars with a nut at either end.
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Front suspension rattly knocking noise over bumps
No the actual steering rack itself