ML63 AMG (W166) 2011 -2015 (Replaced by GLE63)

Power steering pump

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Dec 19, 2019 | 08:11 PM
  #1  
robfolland's Avatar
Thread Starter
Member
5 Year Member
Photogenic
Liked
Loved
 
Joined: Nov 2017
Posts: 75
Likes: 30
ML63 W166
Power steering pump

my power steering pump has done about 55000 Kms and has a minor leak.
options are to add "power steering fluid with stop leak" , remove the pump and rebuild it or replace the pump assembly.
my concern is using the "power steering fluid with stop leak" may soften the remaining seals in the steering system and shorten their life.
Has anyone had a similar experience and can offer best advice.



Reply
Old Dec 20, 2019 | 12:01 AM
  #2  
robfolland's Avatar
Thread Starter
Member
5 Year Member
Photogenic
Liked
Loved
 
Joined: Nov 2017
Posts: 75
Likes: 30
ML63 W166
Went to my local dealer who advised it was a hydraulic pump for the antisway bar. Im advised the pumps are prone to leakage. replacement refurbished pumps are available, although research found new pumps from America are available at a reasonable cost.
would e interested if anyone has had similar and may have some advice.
Reply
Old Dec 20, 2019 | 10:22 AM
  #3  
diamondblak05's Avatar
Super Member
20 Year Member
 
Joined: Mar 2005
Posts: 653
Likes: 46
From: Twin Cities
Too many to list
Mine leaked at around 35k miles and it was replaced under warranty. I just hope itll last another 35k or more miles again. Dont knowing dealer used a new or remanufactured part though.
Reply
Old Oct 16, 2022 | 09:10 PM
  #4  
MBenzEnthusiast's Avatar
Member
10 Year Member
Liked
 
Joined: May 2011
Posts: 85
Likes: 4
08 ML63, 00 ML320
Any new solution to this problem? Maybe a rebuild kit that has new o-rings?
Reply
Old Oct 16, 2022 | 09:40 PM
  #5  
robfolland's Avatar
Thread Starter
Member
5 Year Member
Photogenic
Liked
Loved
 
Joined: Nov 2017
Posts: 75
Likes: 30
ML63 W166
Hi MBenthusiast in the short term i just topped up the oil with the correct fluid and ordered a replacement pump, that was some years ago and have had the pump sitting on the shelf, I'm up to 90000Kms and the leak has almost stopped, ie no noticeable leakage or oil use.
Free Shipping 2012-2016 Mercedes Ml W166 Gl X166 Gle W292 Abc Hydraulic Pump 0003291603 - Power Steering Pumps & Parts - AliExpress maybe the best solution??
Reply
Old Oct 17, 2022 | 08:18 AM
  #6  
MBenzEnthusiast's Avatar
Member
10 Year Member
Liked
 
Joined: May 2011
Posts: 85
Likes: 4
08 ML63, 00 ML320
Okay, thank you. I really appreciate it. Mine is leaking slowly and was just curious and didn’t find much. Some owners/shops/even in part stores think it’s a power steering pump so it very hard to find out what the pump actually is and what’s it for. This helps me a lot. Thank you.
Reply
Old Oct 17, 2022 | 06:13 PM
  #7  
robfolland's Avatar
Thread Starter
Member
5 Year Member
Photogenic
Liked
Loved
 
Joined: Nov 2017
Posts: 75
Likes: 30
ML63 W166
No Problem, the hydraulic pump is for the stabliser bar (keeps the car from leaning over on corners- and does a god job of that) the oil is not transmission oil, there is the correct hydraulic oil for the pump. if you have trouble identifying the hydraulic oil let me know ill send a picture of the bottle when i get home in a few days
Reply
Old Oct 17, 2022 | 06:58 PM
  #8  
MBenzEnthusiast's Avatar
Member
10 Year Member
Liked
 
Joined: May 2011
Posts: 85
Likes: 4
08 ML63, 00 ML320
I went to my local dealer and they gave me the hydraulic fluid but I am curious about the level. There’s a 20C mark and a 60C I think. Do you know how to accurately check the level? Does the car have to be warm/cold/on/off…? I’ve just been filling to the 20C mark.
Reply
MB World Stories

The Best of Mercedes & AMG

story-0

New Mercedes-AMG SUVs Arrive With NEW V8 Engine: 12 Things You Need to Know

 Verdad Gallardo
story-1

8 Oddball Mercedes Ideas That Actually Made it to Production

 Verdad Gallardo
story-2

Dubai Tuner Gives the Mercedes G-Class An Entirely New Look

 Verdad Gallardo
story-3

Six Gift Ideas Your AMG Loving Dad or Grad Will Cherish

 
story-4

7 Craziest Things AMG Gas Ever Built

 Verdad Gallardo
story-5

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

 Verdad Gallardo
story-6

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

 Verdad Gallardo
story-7

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

 Verdad Gallardo
story-8

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

 Verdad Gallardo
story-9

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
Old Oct 17, 2022 | 09:05 PM
  #9  
robfolland's Avatar
Thread Starter
Member
5 Year Member
Photogenic
Liked
Loved
 
Joined: Nov 2017
Posts: 75
Likes: 30
ML63 W166
wouldnt stress too much on the level, think i overfilled mine the first time and its still a little over full
Reply
Old Oct 17, 2022 | 10:13 PM
  #10  
MBenzEnthusiast's Avatar
Member
10 Year Member
Liked
 
Joined: May 2011
Posts: 85
Likes: 4
08 ML63, 00 ML320
Ok cool. Thanks, I really appreciate it. One less thing to worry about lol.
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 12:56 PM.

story-0
New Mercedes-AMG SUVs Arrive With NEW V8 Engine: 12 Things You Need to Know

Slideshow: Mercedes-AMG's updated GLE 63 S and GLS 63 bring a new-generation V8, subtle design revisions, and familiar supercar-rivaling performance figures.

By Verdad Gallardo | 2026-06-17 12:52:51


VIEW MORE
story-1
8 Oddball Mercedes Ideas That Actually Made it to Production

Slideshow: Mercedes has never been afraid to experiment, and some of its strangest ideas turned out to be surprisingly successful.

By Verdad Gallardo | 2026-06-10 17:43:40


VIEW MORE
story-2
Dubai Tuner Gives the Mercedes G-Class An Entirely New Look

Sideshow: A Middle Eastern tuner has transformed the Mercedes-AMG G 63 into an open-top special, replacing nearly every exterior panel in the process.

By Verdad Gallardo | 2026-06-10 15:29:50


VIEW MORE
story-3
Six Gift Ideas Your AMG Loving Dad or Grad Will Cherish

Slideshow: Six gift ideas your AMG loving dad or grad will cherish.

By | 2026-06-03 17:26:18


VIEW MORE
story-4
7 Craziest Things AMG Gas Ever Built

Slideshow: Sometimes AMG builds fast sedans. Other times, it builds twin-turbo V12 land missiles and six-wheeled off-road monsters.

By Verdad Gallardo | 2026-05-26 17:59:58


VIEW MORE
story-5
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-6
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-7
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-8
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-9
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