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Steering Fluid Change 2000 E320

8266 Views 31 Replies 11 Participants Last post by  cerritos, 
harb
This might be an easy question, but how do I change/replace the steering fluid on a 2000 E320? I know where the steering fluid housing is with the dip stick level check as the cover.

I am hearing minor squeaking noises when I turn the wheel in either direction at low speeds or stationary. The steering fluid change may not eliminate the noise, but I figured it wouldn't hurt. I have checked the fluid level and it is at max level.
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S
i just use a clean oversized medical syringe(without the needle)from my clinic[:D]....or go to your local Autozone/PEP boys and get a simple universal liquid suction device or a Mighty Vac-Brake Bleeder ($30)- also handy for brake vacuum bleeding.
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harb
I still have the steering squeaky noise... I managed to siphon out only 300 ml of the steering fluid so I replaced it with new fluid. The spec calls for over a quart so somehow I was not able to siphon out most of the oil. I used a regular, manual pump from Autozone. So today, I took the car to an independent Mercedes shop. The mechanic told me ahead of time that if he gets into the wheel he might not be able to fix the problem anyway. I was so desperate so I gambled, and lost... It cost me an hour of labor and the problem is still there. The mechanic was able to determine that it is not the steering pump or the boot needing lubrication. He isolated the noise to the black plastic part that attaches to the steering wheel. It's attached to the car by two screws. He took it out and showed it to me. It has one moving part and one stationary part. As he manually rotated the moving part, I could hear grinding noise but not squeaking. He said it might sound different once the wheel is on. And so he air sprayed it and lubricated it. In the end, I was out $77, 1 hour of down time, and the same problem [:(!] I DON'T KNOW WHAT TO DO!!!!!!!! I'm not the type to give up so I'm going to continue to research this thing. Once again, any help here is appreciated.
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S
Mercedes Service Bulletin: Steering-Squeaking Noise

Date: July 7, 2003
Order No.: P-B-46.20/12

Supersedes:
Group: 46

Subject:
Model 210.065/070/072/074 up to VIN A999999
Model 210.065/070/072/074 up to VIN B502650
Model 210.065/082/083/265/282 up to VIN X097150
Hydraulic/Squeaking Noises from Power Steering System While Slowly Turning Steering Wheel

If you receive customer reports of a squeaking noise while slowly turning the steering wheel in the referenced vehicles, that may be caused by the bottom radial shaft sealing ring on the control head. In that case, please perform the following procedure.

Note:
DO NOT REPLACE THE STEERING RACK

1. Verify that the power steering oil is properly filled and clean.

2. Verify that the strainer is properly secured in the reservoir and not causing aeration of the power steering oil.

3. Verify the the steering shaft boot is not the cause of the noise.

4. If the noise still exists, refer to the repair instructions as outlined in WIS document AF46.20-P-1100AG.
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olivengco
Hey Harb I'm right behind you, I will do some researching myself too and keep you posted when I find a fix. You do the same for me.
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K
stuvx,
Your post was of great interest to me as my 2002 E320 has the dreaded steering whine at low speeds.
Do not replace the steering rack is, of course, good news. Do you know what is involved in the step 4 fix?



stuvx - 2/19/2005 1:10 AM

Mercedes Service Bulletin: Steering-Squeaking Noise

Date: July 7, 2003
Order No.: P-B-46.20/12

Supersedes:
Group: 46

Subject:
Model 210.065/070/072/074 up to VIN A999999
Model 210.065/070/072/074 up to VIN B502650
Model 210.065/082/083/265/282 up to VIN X097150
Hydraulic/Squeaking Noises from Power Steering System While Slowly Turning Steering Wheel

If you receive customer reports of a squeaking noise while slowly turning the steering wheel in the referenced vehicles, that may be caused by the bottom radial shaft sealing ring on the control head. In that case, please perform the following procedure.

Note:
DO NOT REPLACE THE STEERING RACK

1. Verify that the power steering oil is properly filled and clean.

2. Verify that the strainer is properly secured in the reservoir and not causing aeration of the power steering oil.

3. Verify the the steering shaft boot is not the cause of the noise.

4. If the noise still exists, refer to the repair instructions as outlined in WIS document AF46.20-P-1100AG.
Click to expand...
Your text here
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harb
Hey I just thought I'll update this thread by the fact that the steering noise has suddenly disappeared!!!!!!! I can't believe it. Of course, it might come back. I did not do anything more than described here. It just disappeared!
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olivengco
Hey Harb, Glad to hear yours disappeared. Now I'm kinda hoping mine would too.
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C
I'm trying to locate the PS reservoir, is it the black reservoir next to the oil filter? (facing the front of enging, right of the oil filter, left of the wiper fluid tank. It has a part number on it, 000 460 01 83.) The cap has a dip stick, it has two ranges, one for 20 degree c and the other 80 degree c.

Could someone confirm this? Thanks.
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harb
As you face the engine, the PS reservoir is right below the right hand side front corner of the plastic manifold cover. In fact, you would have to either remove the manifold plastic cover or just slightly bend it to unscrew and remove the PS reservoir cover.
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C
I drained and re-filled my 2001 E320 power steering reservoir fluid at 34K miles. This is the color of the fluid:

Attachments

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H
Cerritos,

Did you actually drain the power steering system or did you syphon the fluid out? If you drained it, how did you do it?

Emmett
2001 E320
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C
harlestone - 1/10/2006 10:21 AM

Cerritos,

Did you actually drain the power steering system or did you syphon the fluid out? If you drained it, how did you do it?

Emmett
2001 E320
Click to expand...
Emmett,

I'm sorry for the late reply. I did not see your posting until now. I syphoned out the fluid.
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