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99ML320 (retired) C230 530xi 911-C4
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Discussion Starter · #1 ·
Thanks to Wolfgang, I added this magic potion to the steering system:
 

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99 ML430, 00 ML320, 05 E500 4matic Wagon
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????? What potion????

Is that the one time only additive that is in the Star Bulletin? I think it was called Lubrizol.

Never mind I see you reposted to get the image to display.
The server has really been flaking out a lot more recently.
 

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Where is the TSB? I can't open the old link that was posted. Where can I buy this stuff and how much should I put in? Thanks!
 

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99ML320 (retired) C230 530xi 911-C4
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Discussion Starter · #5 ·
This is the lubrizol additive.
It is available from the MB Dealer only.
It is called LUBRIZOL steering fluid additive.
You have to remove exact amount of powersteering fluid from reservoir and then add the amount in the bottle and then turn steering wheel lock to lock 20 times or so...
 

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2000 ML55 AMG
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315 Posts
I had a slow leak (and whining noise) coming from my power steering system. I just topped it up with Lucas Oil Power Steering Stop Leak and both the leak and whine went away.
 

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ML350, SMART-4-2
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I had a slow leak (and whining noise) coming from my power steering system. I just topped it up with Lucas Oil Power Steering Stop Leak and both the leak and whine went away.

The Lucas is great for fixing old power steering on toyotas and hondas.

it is VERY thick. after you run it for a while I would recommend that you replace as much fluid as you can with the MB official fluid. it is much thinner and designed for this system. you can suck out a lot of it with a turkey baster then replace. run it for a while, repeat. then to the air removal procedure, elevate, turn lock to lock 20-30 times.
 

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2005 ML350SE
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421 Posts
Just sucked all the old out and Bought some MB steering fluid along with....... LUBRIZOL! I put the new fluid in mixed with Lubrizol and lifted the front and went lock to lock 20 times to let the air bleed out. We will see how it sounds once it gets into the system. Wasnt bad before, but this is good fluid to change as it was old and dark brown.


Part number for Lubrizol (the little bottle pic on this page) is :

#A 001 989 61 03
 

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ml500 w163 2002
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456 Posts
i got some of this lubrisol and it works miracles. the only thing though is i read that you should not let this get into the environment as it can have damaging effects to the environment. Most specifically the water supply.
 

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2005 ML350SE
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This additive did nothing for my noise. I actually think it got louder..
 

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ml500 w163 2002
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456 Posts
This additive did nothing for my noise. I actually think it got louder..
did you check the fluid levels a while after putting the lubrizol? I think it takes out moisture and water from the system if there was any that got in there, and if that was the case the level would have went down. Also, use Mercedes fluid as the rest is a gamble. I tried it on mine and it feels like a cadillac now, that feeling where the steering wheels is so loose.
 

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1999 E55, 2001 E320, 1990 560 SEC, 2004 ML350, 2001 ML55, 1995 S500, 1998 SL500, 2010 E550 Sport zoo
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I gave the Lucas a whirl..

I have (3) MB's in my stable that had given me "whine" a 2001 ML320, a 2001 E320, and a 2004 ML350..

I had gotten all (3) in no-whine zone: replaced reservoirs and o-ring's, fresh MB steering "oil", and a modified version of the bleed procedure..I have a warehouse ramp, front end up on the steep ramp, and with engine on I do the turn-to-turn about 10-15 times.

I would say from my experience:

1) MB steering oil as modified mineral oil base (au natural/green product) breaks down over time, most often leading to some drop in fluid (even with o-ring and hoses intact).

2) I now freshen P/S fluid with a new quart annually to keep everything fresh: I pull old fluid from the reservoir with a baster, run that a while, then do a second time, run that awhile, then do it a third time.

3) It's e-z to identify the slow o-ring leak with a flashlight, knowing to look immediately behind the reservoir. All 3 cars had slow o-ring leaks.

4) It is insanely e-z and cost effective to replace reservoir and o-ring.

5) I have not had to use Lubrizol, since I have developed my "keep fluid fresh" regimen.

I did try the Lucas Power Steering additive, just to try it like some have done here - I do use Lucas Oil Stabilizer on several of my classic and modded cars, and I do use Lucas Injector Cloeaner on all my cars since it is non-solvent based.

To be 100% honest Lucas Power Steering goop NOT RECOMMENDED AT ALL for ML's: with 1/3 bottle in the MB fluid, steering went to shit, and whine came back...did a 3-step fluid exchange with a new MB quart and got everything back to normal, and no whine.

Keep the beat !
 

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2005 ML350SE
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I have (3) MB's in my stable that had given me "whine" a 2001 ML320, a 2001 E320, and a 2004 ML350..

I had gotten all (3) in no-whine zone: replaced reservoirs and o-ring's, fresh MB steering "oil", and a modified version of the bleed procedure..I have a warehouse ramp, front end up on the steep ramp, and with engine on I do the turn-to-turn about 10-15 times.

I would say from my experience:

1) MB steering oil as modified mineral oil base (au natural/green product) breaks down over time, most often leading to some drop in fluid (even with o-ring and hoses intact).

2) I now freshen P/S fluid with a new quart annually to keep everything fresh: I pull old fluid from the reservoir with a baster, run that a while, then do a second time, run that awhile, then do it a third time.

3) It's e-z to identify the slow o-ring leak with a flashlight, knowing to look immediately behind the reservoir. All 3 cars had slow o-ring leaks.

4) It is insanely e-z and cost effective to replace reservoir and o-ring.

5) I have not had to use Lubrizol, since I have developed my "keep fluid fresh" regimen.

I did try the Lucas Power Steering additive, just to try it like some have done here - I do use Lucas Oil Stabilizer on several of my classic and modded cars, and I do use Lucas Injector Cloeaner on all my cars since it is non-solvent based.

To be 100% honest Lucas Power Steering goop NOT RECOMMENDED AT ALL for ML's: with 1/3 bottle in the MB fluid, steering went to shit, and whine came back...did a 3-step fluid exchange with a new MB quart and got everything back to normal, and no whine.

Keep the beat !

I used OEM MB Fluid with the Lubrizol added in it. As far as the prodecure, take off the PS res cap...raise the front and go lock to lock a bunch of times?


I will give it a shot again. Did you here the whine while going at low speeds?

Thanks!
 

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2000 ml430, 99 infiniti i30 limited edition
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980 Posts
I have (3) MB's in my stable that had given me "whine" a 2001 ML320, a 2001 E320, and a 2004 ML350..

I had gotten all (3) in no-whine zone: replaced reservoirs and o-ring's, fresh MB steering "oil", and a modified version of the bleed procedure..I have a warehouse ramp, front end up on the steep ramp, and with engine on I do the turn-to-turn about 10-15 times.

I would say from my experience:

1) MB steering oil as modified mineral oil base (au natural/green product) breaks down over time, most often leading to some drop in fluid (even with o-ring and hoses intact).

2) I now freshen P/S fluid with a new quart annually to keep everything fresh: I pull old fluid from the reservoir with a baster, run that a while, then do a second time, run that awhile, then do it a third time.

3) It's e-z to identify the slow o-ring leak with a flashlight, knowing to look immediately behind the reservoir. All 3 cars had slow o-ring leaks.

4) It is insanely e-z and cost effective to replace reservoir and o-ring.

5) I have not had to use Lubrizol, since I have developed my "keep fluid fresh" regimen.

I did try the Lucas Power Steering additive, just to try it like some have done here - I do use Lucas Oil Stabilizer on several of my classic and modded cars, and I do use Lucas Injector Cloeaner on all my cars since it is non-solvent based.

To be 100% honest Lucas Power Steering goop NOT RECOMMENDED AT ALL for ML's: with 1/3 bottle in the MB fluid, steering went to shit, and whine came back...did a 3-step fluid exchange with a new MB quart and got everything back to normal, and no whine.

Keep the beat !
Hello Fabbris,

Would you kindly post here how I can get rid of all my power steering fluid and put fresh one? When my lower hose went loose I lost some fluid and for temporary reasons, topped off with dexron 3. I really want to put fresh mb steering fluid. Thanks.
 

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1999 E55, 2001 E320, 1990 560 SEC, 2004 ML350, 2001 ML55, 1995 S500, 1998 SL500, 2010 E550 Sport zoo
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I use the substitution method...

I use the substitution method, which is pull out as much as you can from the reservoir with a baster, replace that with fresh.. run the car for awhile, I take it for a drive, then repeat the process.

Each successive reservoir suck 'n fill is putting more fresh in.. I do this 3-4 times and am happy with the result... it's basically substitution of fresh for old, and diluting any old down to manageable proportion...and not have to open the system all the way for more air..

There are going to be some drips from the baster, regardless of how good you are, so after I am finished with the last round I make sure I spray that area of the engine clean..
 
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