Bilstein B14 Shock Clunking

liquidshadow22 · 04-25-2016, 09:47 PM

Hey guys,

I just installed a set of Bilstein B14 coilovers on my car. The fronts are fantastic, however, after installing the passenger rear, I've noticed a new clunking over bumps.

I've attached how I installed the upper mounts and want to make sure I did it correctly since the Bilstein instructions are total garbage imo.

I will likely reseat the spring perch as well and make sure that's not the culprit.

Just focus on the left (Bilstein) shock, which is showing the top end of the shock (trunk side). I took a picture before the shock cover and then after I placed it. Once it went in, I then placed the stock nut with the circular washer that's attached.

weehe126 · 04-25-2016, 09:59 PM

I'm not even sure what I'm looking at. Do you have the upper mount hardware on both the bottom and top?

liquidshadow22 · 04-25-2016, 10:01 PM

sorry, just focus on the left (Bilstein) shock, which is just showing the top end trunk side. I took a picture before the shock cover and then after I placed it. Once it went in, I then placed the stock nut over the top with the circular washer that's attached.

martinblair · 04-25-2016, 10:54 PM

Pretty sure you have it correct, provided your washer on the inside still has the foam. Worth getting the firmer upper shock mounts, whether it's the Monroe (which I have, as do many others on here) or the Powerflex.

http://www.e90post.com/forums/showthread.php?t=1202520

martinblair · 04-25-2016, 10:57 PM

I just realized the pictures aren't showing up on that post, it's one I had referred to when I installed mine.

liquidshadow22 · 04-26-2016, 02:31 PM

Quote:

Originally Posted by martinblair

Pretty sure you have it correct, provided your washer on the inside still has the foam. Worth getting the firmer upper shock mounts, whether it's the Monroe (which I have, as do many others on here) or the Powerflex.

http://www.e90post.com/forums/showthread.php?t=1202520

HUGE Thanks for the NAPA part reference. I just went there and picked up 2. Shock is out and it looks like the spring is seated in the perch correctly. PIC 1 - sorry hard to tell.

If I shake the upper silver spring mount, I get some noise. Although, not sure if that could be the cause since I'm doing this with the tire unloaded. I think it most likely has to do with not placing the yellow foam underneath the top nut.

liquidshadow22 · 04-26-2016, 03:24 PM

Problem Solved!!! Thanks for the help guys!! It was probably due to the missing top yellow foam (now the black firm rubber replacement under the top nut).

+1 for the NAPA mount again. Having literally just driven the car with and without the stiffer top mount, I would say the difference is notable. Definitely feels a bit firmer and best $10 spent.

04-25-2016, 09:47 PM	#1
liquidshadow22 Second Lieutenant 40 Rep 215 Posts Drives: 2020 M2 Competition Join Date: Jul 2013 Location: Austin, TX iTrader: (3)	Bilstein B14 Shock Clunking - Pictures! Hey guys, I just installed a set of Bilstein B14 coilovers on my car. The fronts are fantastic, however, after installing the passenger rear, I've noticed a new clunking over bumps. I've attached how I installed the upper mounts and want to make sure I did it correctly since the Bilstein instructions are total garbage imo. I will likely reseat the spring perch as well and make sure that's not the culprit. Just focus on the left (Bilstein) shock, which is showing the top end of the shock (trunk side). I took a picture before the shock cover and then after I placed it. Once it went in, I then placed the stock nut with the circular washer that's attached. Last edited by liquidshadow22; 04-25-2016 at 10:10 PM..
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04-25-2016, 09:59 PM	#2
weehe126 Brigadier General 1189 Rep 3,228 Posts Drives: 2017 340i Join Date: Apr 2014 Location: San Antonio iTrader: (2)	I'm not even sure what I'm looking at. Do you have the upper mount hardware on both the bottom and top?
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04-25-2016, 10:01 PM	#3
liquidshadow22 Second Lieutenant 40 Rep 215 Posts Drives: 2020 M2 Competition Join Date: Jul 2013 Location: Austin, TX iTrader: (3)	sorry, just focus on the left (Bilstein) shock, which is just showing the top end trunk side. I took a picture before the shock cover and then after I placed it. Once it went in, I then placed the stock nut over the top with the circular washer that's attached. Last edited by liquidshadow22; 04-25-2016 at 10:10 PM..
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04-25-2016, 10:54 PM	#4
martinblair Private First Class 31 Rep 138 Posts Drives: 2010 328i Touring Join Date: Jan 2015 Location: Edmonton, AB iTrader: (0) Garage List 2010 328i xDrive To ... [0.00]	Pretty sure you have it correct, provided your washer on the inside still has the foam. Worth getting the firmer upper shock mounts, whether it's the Monroe (which I have, as do many others on here) or the Powerflex. http://www.e90post.com/forums/showthread.php?t=1202520
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04-25-2016, 10:57 PM	#5
martinblair Private First Class 31 Rep 138 Posts Drives: 2010 328i Touring Join Date: Jan 2015 Location: Edmonton, AB iTrader: (0) Garage List 2010 328i xDrive To ... [0.00]	I just realized the pictures aren't showing up on that post, it's one I had referred to when I installed mine.
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04-26-2016, 03:24 PM	#7
liquidshadow22 Second Lieutenant 40 Rep 215 Posts Drives: 2020 M2 Competition Join Date: Jul 2013 Location: Austin, TX iTrader: (3)	Problem Solved!!! Thanks for the help guys!! It was probably due to the missing top yellow foam (now the black firm rubber replacement under the top nut). +1 for the NAPA mount again. Having literally just driven the car with and without the stiffer top mount, I would say the difference is notable. Definitely feels a bit firmer and best $10 spent.
	Appreciate 1 Quote