S-Class (W221) 2007-2013: S 320 CDI, S 350, S 450, S 500, S 550, S 420 CDI, S 600

Ball Joints

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Jul 27, 2024 | 11:56 AM
  #1  
PillDrive's Avatar
Thread Starter
Member
15 Year Member
Photogenic
 
Joined: Jan 2011
Posts: 212
Likes: 70
2003 S55 (SOLD) , 2012 S550
Ball Joints

So today i am replacing another Lemfoerder front lower control arm. Its got only about 9k miles on it and already has play again. When i was doing some suspension work earlier this year i found that the ball joints were pretty dry.

So this time before mounting the new control arm i looked to see how much grease comes pre installed in the ball joints.




THAT is WAY to little in my opinion

So i filled it and will see how long they last this time.





So next time you install a new control arm you might want to check the ball joints to see how much grease is pre installed.
Reply
Old Jul 27, 2024 | 12:52 PM
  #2  
Jaap's Avatar
Senior Member
 
Joined: Mar 2018
Posts: 493
Likes: 182
2006 W221 S500L M273
I guess if that white blob of grease in your first pic was evenly spread over the whole metal contact surface (ball and hollow inside surface), that might be a lot better too.
Reply
Old Jul 27, 2024 | 02:13 PM
  #3  
Arrie's Avatar
MBWorld Fanatic!
15 Year Member
Photogenic
Photoriffic
Liked
 
Joined: Oct 2010
Posts: 5,142
Likes: 1,293
From: Southern US
2010 E550, 273 Engine: 2012 S550, 278 Engine
That little bit of grease seems like was squeezed in the bearing after joint assembly. The grease does not do anything if it is not under that ball between metal surfaces.

Did you wiggle the bearing to get the grease go where it needs to be?

Best medicine would be to drill and tap a hole for a grease nipple that puts grease in the correct place.

It might even help in this case to heat the arm to liquify the grease so it would flow between surfaces. Heating needs to be gentle not to burn the grease.

Last edited by Arrie; Jul 27, 2024 at 02:14 PM.
Reply
Old Jul 27, 2024 | 05:31 PM
  #4  
PillDrive's Avatar
Thread Starter
Member
15 Year Member
Photogenic
 
Joined: Jan 2011
Posts: 212
Likes: 70
2003 S55 (SOLD) , 2012 S550
I did push the grease to the bottom and actuated the ball joint for a minute and pushed some more.

I am really surprised that Lemfoerder does such a crappy job with the grease.
Reply
Old Sep 15, 2024 | 08:55 PM
  #5  
s5benzo's Avatar
Member
15 Year Member
 
Joined: Jan 2010
Posts: 248
Likes: 15
From: Sacramento
W221 2013 S550 Rwd, W221 2010 S550 Rwd
Originally Posted by PillDrive
I did push the grease to the bottom and actuated the ball joint for a minute and pushed some more.

I am really surprised that Lemfoerder does such a crappy job with the grease.
Pill were you getting a knocking noise after 9k? I have 11k on lemforder lower arms and there's a suspension knock. Wondering if joint is dry
Reply
Old Sep 16, 2024 | 04:50 AM
  #6  
BOTUS's Avatar
MBWorld Fanatic!
10 Year Member
Community Builder
Community Influencer
Liked
 
Joined: Aug 2014
Posts: 5,322
Likes: 1,678
S500
I fitted new arms by febe-bilstein and they were knocking at 3k - I refitted the 50k mile originals - after buying a secondhand arm just to get the boot that had a nice screwdriver hole after going in to the UK's premier merc dealership...

there is NOTHING wrong with the joints on the bilstein arms (tight as hell) - BUT the conical joke fitting that connects to the strut by pure luck is the wrong shape and creates slop where there shouldn't be any !!!
Reply
Old Sep 16, 2024 | 02:21 PM
  #7  
PillDrive's Avatar
Thread Starter
Member
15 Year Member
Photogenic
 
Joined: Jan 2011
Posts: 212
Likes: 70
2003 S55 (SOLD) , 2012 S550
Benzo....a dry joint wont necessarily knock. There has to be play for it to knock. I chased a knock a long time and in the end it turned out to be the sway bar (the actual bar...not the links). You can disconnect the sway bar links on both sides and drive around a bit (the car will sway much more but its ok) to see if the knock goes away....if it does its either the links or the bar itself.

Good Luck
Reply
Old Sep 17, 2024 | 10:04 PM
  #8  
s5benzo's Avatar
Member
15 Year Member
 
Joined: Jan 2010
Posts: 248
Likes: 15
From: Sacramento
W221 2013 S550 Rwd, W221 2010 S550 Rwd
Originally Posted by PillDrive
Benzo....a dry joint wont necessarily knock. There has to be play for it to knock. I chased a knock a long time and in the end it turned out to be the sway bar (the actual bar...not the links). You can disconnect the sway bar links on both sides and drive around a bit (the car will sway much more but its ok) to see if the knock goes away....if it does its either the links or the bar itself.

Good Luck

Brand new oem sway bar and links, torqued by wis specs. Sway needed to go anyway as left side bushing had play. But sometimes knocking noise present when hitting bump or turning at slow speed, making me think I should slip the boots off and check the lemforder arms.
Reply
MB World Stories

The Best of Mercedes & AMG

story-0

New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

 Verdad Gallardo
story-1

6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

 Verdad Gallardo
story-2

Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

 Verdad Gallardo
story-3

Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

 Verdad Gallardo
story-4

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-5

Flawlessly Restored Mercedes 190E Evo II Heads to Auction

 Verdad Gallardo
story-6

Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

 Verdad Gallardo
story-7

Mercedes EQS Gets A Major Update: Everything You Need to Know

 Verdad Gallardo
story-8

5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

 Verdad Gallardo
story-9

Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

 Verdad Gallardo

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 05:10 AM.

story-0
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

Slideshow: Mercedes-AMG's new electric GT 4-Door Coupe trades combustion for software, synthetic noise, and more than 1,100 horsepower.

By Verdad Gallardo | 2026-05-20 20:08:15


VIEW MORE
story-1
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-2
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-3
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-4
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-5
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE
story-6
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-7
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE
story-8
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

Slideshow: These overlooked Mercedes-Benz models never got the spotlight, but they quietly delivered more than most remember.

By Verdad Gallardo | 2026-04-13 19:35:45


VIEW MORE
story-9
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

Slideshow: A well-used 1991 Mercedes-Benz 300D with more than one million miles is now looking for a new owner, and it still appears ready for more.

By Verdad Gallardo | 2026-04-10 10:05:15


VIEW MORE