[W126 Coupe] Power Steering Weak

[mavris2 at comcast.net]

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 
  To: 'Mercedes Coupes Mailing Lists' 
  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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