[W126 Coupe] Power Steering Weak

[Jonathan]

That's where I would start..It is a 10mm nut..having a 1/4' 10mm deep 
will make life easier.  A pair of needle nose will get the filter out 
w/o issue.  It's also a Great time to flush the fluid.

I'd found to Really get it clear to the point where it stays as much it 
takes about a gallons worth of fluid, ie, drain, refill, run, turn the 
wheels back and forth some 10 times, drain repeat..

If that doesn't do it I would plan on a re-man pump.

Jonathan

mavris2 at comcast.net wrote:

> Did you check the power steering filter?  Its location is inside the 

> pump.  Remove lid, then remove the 8 or 10MM nut, pull plastic careful 

> its spring loaded if I remember.  Then you'll have to use to 2 hooks 

> to pull it out. Or just bend a coat hanger.  It has to be pulled 

> straight up or it will not come out.  You do not have to drain the 

> fluid out to change this filter.  

>  

> That would be my guess. 

>  

> Jason

>

>     ----- Original Message -----

>     *From:* Alexander Hochhausl <mailto:plustech at optonline.net>

>     *To:* 'Mercedes Coupes Mailing Lists' <mailto:mbcoupes at mbcoupes.com>

>     *Sent:* Wednesday, October 24, 2007 7:46 PM

>     *Subject:* [W126 Coupe] Power Steering Weak

>

>     Hi All,

>

>      

>

>     A strange thing is going on. Last week my power steering got

>     weaker (all at once, not gradual, and stayed that way) -- more

>     effort required at the wheel, not like it's not working, but I'd

>     say 25% more than normal & and is the same at idle or driving.

>     Normal play at steering wheel, and returns to straight by itself

>     when driving. Fluid is normal, no bubbles. Pump sounds normal, no

>     gurgling or loud sound. I lifted the front end and can turn the

>     front wheels by hand with normal effort. Is there any kind of

>     compensator that adjusts pump pressure to change based on driving

>     speed? I did break a temperature / vacuum switch on the intake

>     manifold which I am waiting to replace, but otherwise I can't see

>     anything wrong. My next step would be to put a pressure gauge on

>     the pump output to see if it's the pump or the gearbox. Does

>     anyone know what the pressure should be? Any other thoughts would

>     be appreciated.

>

>      

>

>     Thanks in advance!

>

>      

>

>     Alex H

>

>     89 560 SEC (Supercharged)

>

>     81 380 SLC

>

>      

>

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