H&R spring install

coh661 · 04-16-2016, 05:53 AM

Question for anyone who has installed H&R sport lowering springs. The front springs came with this clear plastic tubing on the upper couple of coils. Is this plastic tubing meant to stay on or be removed? I believe it is supposed to stay on but just want to confirm with others who have the springs installed. I believe they there to control noise when the suspension is at full jounce and the coils make contact with each other. I've read some mixed reviews online about it and the H&R documentation makes no mention of it. Any help would be appreciated.

Finnegan · 04-16-2016, 07:15 PM

Really no idea on this. It's not there on the stock springs, so can't hurt to remove.

If these bind rotation against the perch I guess I could see them adding not reducing noise.

inTgr8r · 04-16-2016, 07:34 PM

This is something new, the old H&R didn't have this.
I have seen it on other springs though.

I agree, it's there to reduce coil bind noise.
I would leave it on.

coh661 · 04-16-2016, 10:00 PM

I left them on and installed them today. Did a test drive and all seems fine, no noise. So for now the plastic tubing is staying on, we'll see how it goes the next couple hundred miles. If anything changes I'll update the thread.

04-16-2016, 05:53 AM	#1
coh661 Banned 191 Rep 453 Posts Drives: 2007 Z4M Coupe Join Date: Dec 2015 Location: WY iTrader: (4) Garage List 2007 Z4 M COUPE [8.00]	H&R spring install Question for anyone who has installed H&R sport lowering springs. The front springs came with this clear plastic tubing on the upper couple of coils. Is this plastic tubing meant to stay on or be removed? I believe it is supposed to stay on but just want to confirm with others who have the springs installed. I believe they there to control noise when the suspension is at full jounce and the coils make contact with each other. I've read some mixed reviews online about it and the H&R documentation makes no mention of it. Any help would be appreciated. Attached Images
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04-16-2016, 07:15 PM	#2
Finnegan Dog Listener 703 Rep 7,850 Posts Drives: Z4M/. Z3M, E36/46 M3 Join Date: Oct 2008 Location: Teaching the dog to slalom iTrader: (22)	Really no idea on this. It's not there on the stock springs, so can't hurt to remove. If these bind rotation against the perch I guess I could see them adding not reducing noise.
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04-16-2016, 07:34 PM	#3
inTgr8r Lieutenant General 2432 Rep 11,667 Posts Drives: M2 Comp Join Date: Mar 2006 Location: Toronto iTrader: (10)	This is something new, the old H&R didn't have this. I have seen it on other springs though. I agree, it's there to reduce coil bind noise. I would leave it on. __________________ '21 M2C Hockenheim Silver '18 718 Cayman S Lava Orange (sold) '13 E92 M3 Santorini Blue (sold) '07 Z4 M Coupe Alpine White (sold)
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04-16-2016, 10:00 PM	#4
coh661 Banned 191 Rep 453 Posts Drives: 2007 Z4M Coupe Join Date: Dec 2015 Location: WY iTrader: (4) Garage List 2007 Z4 M COUPE [8.00]	I left them on and installed them today. Did a test drive and all seems fine, no noise. So for now the plastic tubing is staying on, we'll see how it goes the next couple hundred miles. If anything changes I'll update the thread.
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