M-Class (W163) Produced 1998-2005: ML 230, ML 320, ML 350, ML 400 CDI, ML 430, ML 500, ML 270 CDI

Brake Bleeding Sequence

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Sep 1, 2006 | 11:22 AM
  #1  
cyeung65's Avatar
Thread Starter
Senior Member
 
Joined: May 2003
Posts: 292
Likes: 0
From: Houston, TX
Q & R
Brake Bleeding Sequence

At 39000 miles, I have already replaced 4 brake pads. But the pedal seems too low. Sitting at a stop light, there isn't that much more to push on the pedal to what feels like bottom.

I have had my 2000 since new so I know it is notorious for the spongy brake. But it just doesn't seem as good as it should be.

I got a Motive power bleeder and flushed the system and bleeded the lines. Did not see much difference.

Is there a special brake bleeding sequence or procedure for the ML?

I did the standard, farthest away from the master cylinder sequence.

BTW to Motive brake bleeder is awesome. No fuss, no muss.
Reply
Old Sep 1, 2006 | 03:43 PM
  #2  
marcelc's Avatar
Almost a Member!
 
Joined: Dec 2004
Posts: 62
Likes: 1
From: UK
2002 ML270
Originally Posted by cyeung65
At 39000 miles, I have already replaced 4 brake pads. But the pedal seems too low. Sitting at a stop light, there isn't that much more to push on the pedal to what feels like bottom.

I have had my 2000 since new so I know it is notorious for the spongy brake. But it just doesn't seem as good as it should be.

I got a Motive power bleeder and flushed the system and bleeded the lines. Did not see much difference.

Is there a special brake bleeding sequence or procedure for the ML?

I did the standard, farthest away from the master cylinder sequence.

BTW to Motive brake bleeder is awesome. No fuss, no muss.
It may not be a question of bleeding, I've found that if, whilst parked, I press hard on the brake pedal until it is depressed as far as it will go (usually near the floor) then the brakes seem to return to 'normal' for a few thousand miles.

Worn pads can also worsen the pedal feel.

I realise that this is not a direct answer to your question, I hope someone else answers it authoritatively.
Reply
Old Sep 1, 2006 | 04:44 PM
  #3  
cyeung65's Avatar
Thread Starter
Senior Member
 
Joined: May 2003
Posts: 292
Likes: 0
From: Houston, TX
Q & R
Originally Posted by marcelc
It may not be a question of bleeding, I've found that if, whilst parked, I press hard on the brake pedal until it is depressed as far as it will go (usually near the floor) then the brakes seem to return to 'normal' for a few thousand miles.

Worn pads can also worsen the pedal feel.

I realise that this is not a direct answer to your question, I hope someone else answers it authoritatively.
Appreciate any feedback on this issue. Thank you, that is quite interesting. I wonder what mechanical/hydraulic aspect causes that?
Reply
Old Sep 1, 2006 | 11:16 PM
  #4  
Taz777's Avatar
Newbie
 
Joined: Aug 2006
Posts: 12
Likes: 0
From: Oregon
'99 ML430, '90 LS400, '01 V70 T5, '87 300E (gone), '92 300CE (gone)
Usually but not always, if you have air in the system, the pedal will go very low on the first pump but than rise if you continue to pump.

I had a problem years ago where the pedal behaved as if there was air in the system. To isolate the problem I pinched off the front brake lines (put a clamp on the rubber parts of the break lines just before each front caliper), and the pedal stopped going to floor and became very hard. To make a long story short, it turned out that my rotors were so warped that the break pads were actually bending to conform to the surface.
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 06:49 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