C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

General Calliper Question

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Feb 4, 2018 | 07:46 AM
  #1  
SweeneyD24's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2017
Posts: 39
Likes: 1
From: Mauritius
Mercedes-Benz C200K
General Calliper Question

I have a bad calliper, it's Ioose and makes clunking noise over bumps. My guess is that it's hitting against the inside of the rim. Even the slightest bump is enough to make the calliper noisy.
The slider pins are fine. I swapped those from the good (right) one to the left one. Same result.

I was told that the slider pins have a tendency to 'wear out' the callipers, i.e. the holes in which the pins are located become loose over time. Why and how, i don't know.

So my question is:
Can the 'loose hole' in the calliper be repaired?
Like for example, fill in the holes and then drill them back again so that the pins will fit perfectly. I was also told that it had to be a very precise job.
Reply
Old Feb 4, 2018 | 11:51 AM
  #2  
tjts1's Avatar
MBWorld Fanatic!
5 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2017
Posts: 2,290
Likes: 434
C320
Maybe but it's cheaper and easier to replace the calipers.
Reply
Old Feb 4, 2018 | 12:23 PM
  #3  
SweeneyD24's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2017
Posts: 39
Likes: 1
From: Mauritius
Mercedes-Benz C200K
Originally Posted by tjts1
Maybe but it's cheaper and easier to replace the calipers.
These kind of spare parts are hard to come by where i live, if not, far too expansive!

Thanks for the response.
Reply
Old Feb 4, 2018 | 05:08 PM
  #4  
efzauner's Avatar
Super Member
15 Year Member
Photogenic
Liked
Loved
 
Joined: Jul 2009
Posts: 938
Likes: 53
From: Montreal, Canada
2005 C240 2011 R350
so what is moving? You are describing a sound that occurs when you drive. Is there play when you remove the wheel and inspect the brakes? Front or rear? How do you know it is a brake problem when driving and not a suspension worn arm/rod/ball joint bushing problem?
Reply
Old Feb 5, 2018 | 12:25 AM
  #5  
Russell Ormerod's Avatar
MBWorld Fanatic!
 
Joined: Jun 2011
Posts: 1,494
Likes: 131
From: Cape town
not a merc
And also check wheel bearing play, pack the pins with grease see if it quietens the noise.
Reply
Old Feb 6, 2018 | 10:38 AM
  #6  
SweeneyD24's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2017
Posts: 39
Likes: 1
From: Mauritius
Mercedes-Benz C200K
Originally Posted by efzauner
so what is moving? You are describing a sound that occurs when you drive. Is there play when you remove the wheel and inspect the brakes? Front or rear? How do you know it is a brake problem when driving and not a suspension worn arm/rod/ball joint bushing problem?
It might be the calliper hitting agains the inside of the rim. I don't really, i don't really have the proper method to experiment with. Yes, the noise occur over even the slightest bumps. There is a bit, not that much though. I did remove the wheels and inspect the callipers a couple of times. Since i don't really have that much experience, i couldn't tell for sure. That would be front. I came to the conclusion that it was the calliper by the distinct sound it's making. It's more like a clink clink sound. Then again i wouldn't be able to tell for sure if there are issues with the arm/rod/ball joint bushings. One thing though, i did take the car to a mechanic and he had a quick glance at the front suspension. He told me everything was fine. He didn't check the calliper though.

Thanks for the info.
Reply
Old Feb 6, 2018 | 10:40 AM
  #7  
SweeneyD24's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2017
Posts: 39
Likes: 1
From: Mauritius
Mercedes-Benz C200K
Originally Posted by Russell Ormerod
And also check wheel bearing play, pack the pins with grease see if it quietens the noise.
Is that something i can achieve with the bare minimum tools?! I'd like to DIY before going to the mechanic?

Appreciate the help.
Reply
Old Feb 6, 2018 | 10:41 AM
  #8  
SweeneyD24's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2017
Posts: 39
Likes: 1
From: Mauritius
Mercedes-Benz C200K
Also, i'll be replacing the rear shock absorbers very soon. Any suggestions? What about coilovers?
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
Old Feb 6, 2018 | 09:15 PM
  #9  
C230 Sport Coup's Avatar
MBWorld Fanatic!
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2002
Posts: 7,266
Likes: 170
From: So. Oregon Coast
C230 Sport Coup + 2006 W164 ML350 + 99 Ford Escort RIP
Since I replace my own brake pads etc.
once I noticed a noise and a front calipers was loose.
Pulled the wheel, reached around and the tightened the bolts,
all done.
Moral of the story is to use locktite, but I didn't.
But I should have.
Reply
Old Feb 7, 2018 | 08:11 AM
  #10  
SweeneyD24's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2017
Posts: 39
Likes: 1
From: Mauritius
Mercedes-Benz C200K
Originally Posted by C230 Sport Coup
Since I replace my own brake pads etc.
once I noticed a noise and a front calipers was loose.
Pulled the wheel, reached around and the tightened the bolts,
all done.
Moral of the story is to use locktite, but I didn't.
But I should have.
Which bolt exactly did you tightened and where did you use the locktite? The caliper frame?
Anyway, i'll have a look during the weekend.
Thanks.
Reply
Old Feb 7, 2018 | 04:46 PM
  #11  
C230 Sport Coup's Avatar
MBWorld Fanatic!
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2002
Posts: 7,266
Likes: 170
From: So. Oregon Coast
C230 Sport Coup + 2006 W164 ML350 + 99 Ford Escort RIP
Backside of the hub, where the caliper bolts to the vehicle.
2 bolts. 17mm ?
Reply
Old Feb 8, 2018 | 04:28 PM
  #12  
Russell Ormerod's Avatar
MBWorld Fanatic!
 
Joined: Jun 2011
Posts: 1,494
Likes: 131
From: Cape town
not a merc
Torque them 100nm they will never come loose
Reply
Old Feb 9, 2018 | 01:58 AM
  #13  
SweeneyD24's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2017
Posts: 39
Likes: 1
From: Mauritius
Mercedes-Benz C200K
Originally Posted by Russell Ormerod
Torque them 100nm they will never come loose
Thanks for the tip.
Reply
Old Feb 9, 2018 | 02:46 PM
  #14  
C230 Sport Coup's Avatar
MBWorld Fanatic!
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2002
Posts: 7,266
Likes: 170
From: So. Oregon Coast
C230 Sport Coup + 2006 W164 ML350 + 99 Ford Escort RIP
[QUOTE=Russell Ormerod;7376920]Torque them 100nm they will never come loose[/QUOTE
Indeed, indeed!
And locktite blue just to be sure.
Reply
Old Feb 10, 2018 | 03:34 AM
  #15  
SweeneyD24's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2017
Posts: 39
Likes: 1
From: Mauritius
Mercedes-Benz C200K
Thumbs up

[QUOTE=C230 Sport Coup;7377623]
Originally Posted by Russell Ormerod
Torque them 100nm they will never come loose[/QUOTE
Indeed, indeed!
And locktite blue just to be sure.
Thanks guys. Really appreciate the help.

On a side note, my dad just replace both rear Stabiliser Link Bars on his W203. Most of the rear noises disappeared. One of the bushings was gone. I was thinking of changing the bushings on both Link Bars and putting them on mine.
Can i re use the link bars or should i replace them with new ones when the time comes?
Reply
Old Feb 13, 2018 | 12:45 PM
  #16  
SweeneyD24's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2017
Posts: 39
Likes: 1
From: Mauritius
Mercedes-Benz C200K
Originally Posted by C230 Sport Coup
Backside of the hub, where the caliper bolts to the vehicle.
2 bolts. 17mm ?
I saw these 2 17m bolts! They were super tight!..not loose at all. I really couldn't find anything loose.
I did apply some seal tape to the 2 10mm bolts that connect the caliper though. Will see how it turns out tomorrow on my way to work.
Reply
Old Feb 16, 2018 | 11:24 AM
  #17  
SweeneyD24's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2017
Posts: 39
Likes: 1
From: Mauritius
Mercedes-Benz C200K
I finally went to a garage specialised in suspension yesterday. A friend of mine actually.

I change the rear suspension, front stabiliser link bars and the front sway bar bushings. Tested the car today and ALL the noises were gone!!! It looks like the stabiliser link bars or the sway bar bushings were the culprits.

The ride feels really smooth and comfortable now.

Thanks guys.
Reply

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 12:11 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