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2007 BMW X3
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472 Posts
Discussion Starter #1
Has anyone had this problem. When I drove into my driveway or over a speed bump I hear a "carriage" like squeaking sound coming from the rear.

I tried to use lithium grease around the suspension and sway bar connections with no luck.

damn squeaking noise:banghead:
 

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05 500
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6,473 Posts
Common problem with these trucks, especially the pre MY04 ones. I had it on my 02 320. The usual culprit is the bushings on the torsion bar. I'd say lube the torsion bar everywhere it has an interface. If the noise goes away, there's your problem. If not, dab some lubricant on the polyurethane bushings that hold the rear sway bar. If you have to take the truck in, make sure to tell them that lubing didn't solve the problem - the bushings would have to be replaced in that case.
 

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'07 C280 4matic, '06 530i, '98 ML320
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1,562 Posts
Rear struts also make that noise. Replacing the rear struts will take care of that noise.
 

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'00 w163 55 amg (sold) '02 w208 55 amg '03 w163 350 inspiration
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711 Posts
Common problem with these trucks, especially the pre MY04 ones. I had it on my 02 320. The usual culprit is the bushings on the torsion bar. I'd say lube the torsion bar everywhere it has an interface. If the noise goes away, there's your problem. If not, dab some lubricant on the polyurethane bushings that hold the rear sway bar. If you have to take the truck in, make sure to tell them that lubing didn't solve the problem - the bushings would have to be replaced in that case.
thanks Dark. You've confirmed what I always read in the newbie thread by Cmitch. Uber I'm hearing this more & more lately as the winter has thawd. Dark @ the risk of sounding like a 'you know what':rolleyes: what is the best way to approach the torsion bar with some white grease:confused: sorry I know shocks, struts, but am ill-informed on torsion bars. i.e. do I need to jack her up to do so?
any type of bushing I think I could figure out @ 1st gander.
 

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91' 300e // 99 300e TD // 00' ML55 AMG
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What is a good source for Poly sway bar bushings?
i also have this problem slow speeds, its really starting to annoy the hell outta me, cause i know peoiple are turning their heads from the sound of my sqweeks not my 5.5LV8 :( lol can someone post a picture of some possable areas to lube? i swear i lubed every thing i could see and still, same noise... i also suspect the shocks
 

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+1 for someone to post pictures. Although I would describe what I hear as more of a clicking/snapping sound than a squeak.

can the bushings be replaced in the drive way for some whos fairly handy with the right tools or is it a mechanic only fix?
 

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This is whats making the noise [see below], its the rear portion of the torsion bar. I had someone stand outside to determine if it was the front or back. We have tried to torque down the bolt and after about 4 rotations without the torque increasing over about 23lbs we opted to stop.

Is there a bushing in this end of the torsion bar as well? Should we continue to torque down the bolt? Generous lubing with WD40 has not done anything to reduce the sounds.

Looking forward
 

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02 ML320 06 ML500
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16,925 Posts
This is whats making the noise [see below], its the rear portion of the torsion bar. I had someone stand outside to determine if it was the front or back. We have tried to torque down the bolt and after about 4 rotations without the torque increasing over about 23lbs we opted to stop.

Is there a bushing in this end of the torsion bar as well? Should we continue to torque down the bolt? Generous lubing with WD40 has not done anything to reduce the sounds.

Looking forward
The bolt you turned/tightened is an adjustment bolt to raise or lower the suspension height of the front end, not a bolt that you thought was loose, and in the process have raised one side of the truck.

With the front wheels off the ground, return the bolt to its original position and then follow the instructions for replacement of the "plastic support", part #163 326 00 25.
 

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