Creaky suspension on W108 (front left wheel) - Mercedes-Benz Forum

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post #1 of 12 (permalink) Old 07-01-2013, 02:12 PM Thread Starter
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Creaky suspension on W108 (front left wheel)

Hello.

Just trying to figure out where these creaks come from. I've been underneath the car and I haven't been able to find anything. I've sprayed a bit of silicone on a couple of metal parts in the joints without it helping. The rest of the car has no creaks, as it is indeed well lubricated.
Just took a short video for you creak listeners.
note: the different sounding creak at the end of the video isn't from the suspension but from the seat belt rubbing against the seat.
Any small metal joints that may do this even after lubricated? I'm guessing it's just something I cannot directly see that needs a bit of silicone and then it's good to go!
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post #2 of 12 (permalink) Old 07-01-2013, 02:26 PM
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Are you sure your grease fittings are all able to accept grease until spilling out? Sometimes fittings simply get so filled with dried grease or road grime that we may think we're greasing them but the back pressure is simply preventing any grease from going in. We see a bit on the tip and assume we're done. If that's not it maybe someone else has better advice.

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post #3 of 12 (permalink) Old 07-01-2013, 02:29 PM Thread Starter
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How would I check for dried grease in the seal? I'd go check if I knew what to look for and how to look for it (other than the obvious dirt and dried grease on the fitting). Would be neat if it was possible to check without needing to loosen the seal, as my grease gun is broken and that'd mean the car would be undrivable until I get a new, if the grease came out that is.

EDIT: Could it be a shock absorber that's squeaking a bit? Just hit me that it may sound like a shock that's not sliding as clean as possible, as it really does happen with even the tiniest touches (such as opening the door just a couple centimeters). Going to give that some silicone tomorrow.

Last edited by Jackpody; 07-01-2013 at 02:34 PM.
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post #4 of 12 (permalink) Old 07-01-2013, 09:17 PM
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There are 14 grease nipples in the car suspension .Remove nipples and clean .Check for grease flow which should come out from the seal base.
Some greases are incompatible and turn solid when intermixed.Best to stay with one brand for re-greasing the suspension
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post #5 of 12 (permalink) Old 07-02-2013, 06:53 PM
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Hmmm perhaps could be a shock. You could use a temp solution like the silicone to diagnose that. Otherwise the video makes me think, "If you hear this Benz a creakin' then don't come a peekin' "

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post #6 of 12 (permalink) Old 07-03-2013, 01:31 AM Thread Starter
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Haha, I'll have to remember that one! And the silicone trick was as you say, just a simple way to figure out where the squeaks come from, so I later can figure out a permanent fix (if it's by a grease nipple, fix is obvious haha).
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post #7 of 12 (permalink) Old 07-11-2013, 05:38 AM Thread Starter
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Back now, been trying for a week without being able to find the source of the squeaks. I'm certain it's coming from the front left side of the suspension and my ears are telling me that it's coming from somewhere near the wheel (either right by the disc or somewhere close, however the sounds may resonate from the arms and into the wheel area).
My owners manual shows nothing about the suspension set up, are there anything in that area that's troublesome with creaks and squeaks? You can refer to the video on the top of this page for the squeaking sound - I'm rather certain it sounds like dry rubber and not metal parts (kind of like the sound when you rub two pieces of flamingo together). Using silicone on said dry rubber part seems like a good temporary method to figure out where it's coming from, so that it's possible to replace said rubber.
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post #8 of 12 (permalink) Old 07-11-2013, 08:28 AM
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at each side of front suspension there are 7 fittings , the one that people dont see is at the upper part of kin pin .jack up car and remove front wheels .forget silicone , if you want to use something to spray , i like motorcycle chain lube or hydraulic fluid .
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post #9 of 12 (permalink) Old 07-11-2013, 08:30 AM Thread Starter
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aha, thanks! I'm just using silicone as a temporary fix, only to figure out where the squeaks come from. Then, if from a zerk fitting, use normal lubrication or if from anywhere else, hydraulic fluid.
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post #10 of 12 (permalink) Old 07-11-2013, 02:32 PM
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What 2 parts of the Flamingo do you rub together?

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Originally Posted by Jackpody View Post
(kind of like the sound when you rub two pieces of flamingo together).
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