Squeaky Suspension

4.2 V8 32v Naturally Aspirated - 414 bhp
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rs4jas
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Squeaky Suspension

Post by rs4jas » Sat Jan 12, 2019 5:26 pm

Hi I have a RS4 B7. I’ve recently changed out the DRC system for a bilstein B14 coilover kit. New top mounts. All upper front arms and drivers front lower rear arm. Also polybushed anti roll bar bushes. There’s a REALLY annoying squeak coming from the drivers front and it’s doing my head in. It sounds like a squirrel is in my wing. It happens constantly when driving no matter what road surface.

Any ideas? Don’t want I change anything just to guess.

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alex760
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Re: Squeaky Suspension

Post by alex760 » Sat Jan 12, 2019 11:16 pm

I've had squeaks from polybushes in the past, especially powerflex ones. Could be those?

Seattle-squash
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Squeaky Suspension

Post by Seattle-squash » Sat Jan 12, 2019 11:46 pm

rs4jas wrote:Hi I have a RS4 B7. I’ve recently changed out the DRC system for a bilstein B14 coilover kit. New top mounts. All upper front arms and drivers front lower rear arm. Also polybushed anti roll bar bushes. There’s a REALLY annoying squeak coming from the drivers front and it’s doing my head in. It sounds like a squirrel is in my wing. It happens constantly when driving no matter what road surface.

Any ideas? Don’t want I change anything just to guess.
Unfortunately the coil-over systems are often a bit noisy, especially at low speed over speed bumps etc... and got some light creaking myself with my B16. I spent lots of time trying to silence it 100% but eventually gave up with mostly all new parts. I think often it’s the coil springs binding against themselves which is tough to fix.

rs4jas
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Re: Squeaky Suspension

Post by rs4jas » Sun Jan 13, 2019 8:50 am

Ohhh ok. Just wondered if something was wrong as it didn’t squeak at 1st but after a couple of weeks it started. What if I lifted the front up? Have you tried that? Does that quieten it down?

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Covkiller
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Re: Squeaky Suspension

Post by Covkiller » Sun Jan 13, 2019 10:07 am

You can lubricate your springs and top mounts, you could use sillycunt lubricant:

https://www.amazon.co.uk/WD40-Performan ... B00KPUBRJ8
RS4 B7, Mugello Blue, K&W V3 & HR ARBs, set up by Centre Gravity, Milltek Valved Non Res & cat bypass pipes, BMC air filter, braided hoses, DOT 5.1, Terraclean, MRC Full Carbon Clean, MRC remap 448PS 477NM, 20" S7 alloys with 4mm spacers & Hawke spigots 66.6 > 57.1, AP Racing front discs. Sold Sept 2019. Now rocking an F80 M3

rs4jas
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Re: Squeaky Suspension

Post by rs4jas » Sun Jan 13, 2019 10:19 am

Awesome I’ll give anything a try.

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jamiej
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Re: Squeaky Suspension

Post by jamiej » Sun Jan 13, 2019 10:40 am

Don't the B16s have a different piston protector, like a corrugated sleeve, whereas the B14s have a straight sleeve, could this be causing the sqeak?

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MrRSB7
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Re: Squeaky Suspension

Post by MrRSB7 » Wed Jan 16, 2019 11:17 pm

C’mon now, no need for squirrel talk 🐿
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coombsie66
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Re: Squeaky Suspension

Post by coombsie66 » Fri Jan 18, 2019 9:57 am

I have exactly the same from my Bilsteins, thought it was the arm bushes being under torsion from tightening the bolts with the arms in droop - so re-did those with the arms in the correct position - no change.

I think it is damper shaft dust cover/sleeve rubbing on the inside of the coils as the squeaking is far less in the wet and seemed to go away for a while after lubricating the sleeve.

Pretty pathetic fault from a manufacturer like Bilstein to be honest.

Wondering if some zip ties around the sock to pull it in a touch might help?

marc1
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Re: Squeaky Suspension

Post by marc1 » Fri Jan 18, 2019 2:51 pm

There is a known issue with B14’s squeaking from memory. If you google or search this forum with B14 included in the key words. Doesn’t apply to B16’s from what I remember.

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