C-Class (W204) 2008 - 2014: C180K, C200K, C230, C280, C300, C350, C200CDI, C220CDI, C320CDI

W204 Bleeding brake Lines.

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old May 25, 2024 | 07:16 PM
  #1  
TimC300's Avatar
Thread Starter
MBWorld Fanatic!
Community Builder
Liked
Loved
Community Favorite
 
Joined: Aug 2023
Posts: 3,689
Likes: 1,110
From: MA Coast
W204 2010 C300 4matic Sport M272
W204 Bleeding brake Lines.

Im bleeding my brake lines. Its been 2 years and cannot believe the difference in color of the fluid.








Reply
Old May 25, 2024 | 07:54 PM
  #2  
JettaRed's Avatar
Banned
Veteran: Army
5 Year Member
Community Influencer
Loved
iTrader: (1)
 
Joined: Nov 2016
Posts: 7,847
Likes: 3,496
From: Maryland
2015 SL400 (M276 Turbo), 2014 C350 Sport (M276 NA), 2004 SL500 (M113), 2004 Audi TT225 (BEA)
Good on you to keep up with this. Too many people think doing it every two years is overkill....until they have brake failure.
Reply
Old May 25, 2024 | 08:39 PM
  #3  
cvx5832's Avatar
Super Member
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2008
Posts: 764
Likes: 171
From: Walnut Creek, CA
325Ci, 325Cic, C300
Having a clean bottle does feel good

Reply
Old May 26, 2024 | 07:39 AM
  #4  
JettaRed's Avatar
Banned
Veteran: Army
5 Year Member
Community Influencer
Loved
iTrader: (1)
 
Joined: Nov 2016
Posts: 7,847
Likes: 3,496
From: Maryland
2015 SL400 (M276 Turbo), 2014 C350 Sport (M276 NA), 2004 SL500 (M113), 2004 Audi TT225 (BEA)
Originally Posted by cvx5832

Gatorade is not an approved substitute for DOT4 brake fluid.
Reply
Old May 26, 2024 | 08:05 AM
  #5  
streborx's Avatar
MBWorld Fanatic!
5 Year Member
Photogenic
Community Builder
Top Answer: 1
 
Joined: Oct 2019
Posts: 5,152
Likes: 1,766
From: Colorado
G550
The color of the extracted fluid is more meaningful when compared to a sample of the same fluid when installed. Save a sample of your new fluid in an airtight glass container and see how it compares in 2 years. I changed my fluid 8 months ago and the new fluid was just slightly darker than the fluid I removed.
Reply
Old May 26, 2024 | 09:21 AM
  #6  
TimC300's Avatar
Thread Starter
MBWorld Fanatic!
Community Builder
Liked
Loved
Community Favorite
 
Joined: Aug 2023
Posts: 3,689
Likes: 1,110
From: MA Coast
W204 2010 C300 4matic Sport M272
I have been using the Mercedes Dot4+ brake fluid, can get a 1 Liter tin of it on ebay for less than $20 and its fresh, dates show it was recently made and use by date is 2028 I think. I still have the container from 2yrs ago and the fluid does look the same in color as the new fluid, looks like vegetable oil.

My operators manual says the system holds 0.5L and I ended up with around 0.6L in the bleeder bottle but that is without the old fluid I sucked out the reservoir which I put in another bottle. I used a large syringe for injecting meat to suck out the fluid.

With the fluid pump it is such a simple job. I never changed brake fluid in any of my previous vehicles but if I had known I would have bought a fluid pump 20yrs ago and done it. One of the reasons i want to keep up with replacing the brake fluid is the issue with rusting break lines, hopefully the insides of the lines will stay in good condition. My lines do have some rust/corrosion but dont look too bad.

I collected all the tools for the job though only used an 11mm wrench, 1/4" torque wrench w/11mm deep socket. Torque spec for the bleeders is 62inlbs which I did last time and they easily loosened this time. Takes less than a minute to bleed each line, the majority of the time I spent cleaning the rims and inspecting everything on the car since the wheels were off. Everything looked good except for the tie rods that I now want to replace though looks like I may need to lower the subframe to get the inner bolt out. Ill have to research more. Was thinking about replacing the rear sway bar links but they look fine to me and dont see a reason to.

Also the passenger side sway bar link bottom boot looks cracked and i just replaced them 2yrs ago. The drivers side looks fine. Think I will take advantage of the FCP warranty for it.











Passenger side link:


Drivers side:















Reply
Old May 26, 2024 | 11:50 AM
  #7  
streborx's Avatar
MBWorld Fanatic!
5 Year Member
Photogenic
Community Builder
Top Answer: 1
 
Joined: Oct 2019
Posts: 5,152
Likes: 1,766
From: Colorado
G550
The best reason for DIY (if you can't have it done at a MB dealer) is the DOT4+ fluid spec, which is MB proprietary. Even if you carry in a couple liters to an indy shop, likely it will get dumped into a fluid pump that still has DOT3 or DOT 4 residue in it, and your fluid will end up contaminated. Biggest challenge with the DIY is handling and disposal of the fluid -- take it slow and don't spill any.

I like your drain bottle graduation lines. I'm going to mark my 1/2L Motive bottles similarly.
Reply
Old Jun 7, 2024 | 11:30 AM
  #8  
TimC300's Avatar
Thread Starter
MBWorld Fanatic!
Community Builder
Liked
Loved
Community Favorite
 
Joined: Aug 2023
Posts: 3,689
Likes: 1,110
From: MA Coast
W204 2010 C300 4matic Sport M272
Brake Bleeding procedure with bleeder torque spec.


Reply
MB World Stories

The Best of Mercedes & AMG

story-0

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

 Verdad Gallardo
story-1

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

 Verdad Gallardo
story-2

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

 Verdad Gallardo
story-3

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-4

Flawlessly Restored Mercedes 190E Evo II Heads to Auction

 Verdad Gallardo
story-5

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

 Verdad Gallardo
story-6

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

 Verdad Gallardo
story-7

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

 Verdad Gallardo
story-8

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

 Verdad Gallardo
story-9

10 Most Reliable Mercedes-Benz Models You Can Buy Used

 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 06:17 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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
story-9
10 Most Reliable Mercedes-Benz Models You Can Buy Used

Slideshow: From bulletproof sedans to surprisingly tough SUVs, these Mercedes models proved that the three-pointed star can go the distance.

By Verdad Gallardo | 2026-04-08 09:55:49


VIEW MORE