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Old 08-08-2001, 11:50 AM
sixto's Avatar
smoke gets in your eyes
Join Date: Jun 2000
Location: Eastern TN
Posts: 20,825
W126 steering box questions

Two questions about the steering box on my 91 300SE:

1) Where is the hole through which a pin is set to center the steering for a wheel alignment? If the location is shown in the CD manual, I would appreciate a reference or path as I can't find it.

2) There seems to be a leak starting between the body of the steering box and the bottom piece that houses the seal next to the pitman arm. It isn't a drip, just some seepage at this point. Should I be concerned or should I wait for it to get worse?

91 300SE

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Old 08-08-2001, 11:39 PM
Registered User
Join Date: Jul 2000
Posts: 638
seep from steering box what to do

Why wait for it to get worse? Some preventive maintenance will fix it now. Change the power steering oil. Add a small amount of leak stopper power steering oil from the parts houses.
My favorite remedy for seals starting to seep is Marvel Mystery Oil, and use about 1 ounce in the power steering reservoir.
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Old 08-09-2001, 01:09 AM
Senior Member
Join Date: Apr 2001
Location: Beech Island, S.C.
Posts: 468
There is a 12MM(head) bolt at the bottom of the gear box. The special tool is the same sized bolt with a point that you scew into the hole where you removed it from. The steering has to be centered to install the tool.
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Old 08-31-2001, 05:51 PM
Robert W. Roe's Avatar
Registered User
Join Date: May 1999
Location: Lehigh Valley PA
Posts: 1,330
I just got my steering box replaced (finally!!) and I'm kicking myself for waiting so long. I almost want to send my mechanic a thank-you note! My Benz now wants to cruise at 75+ ALL THE TIME now... We took her out for a 200 mile drive last night, and I had her up to 85+ a couple times. Still got 24 mpg including sitting in stopped traffic for 5 miles, and a week of two-mile short trips. I'm going to watch my mileage because all the sloppiness in the front suspension couldn't have helped fuel economy.

Bob Roe
Lehigh Valley PA USA
1973 Olds 88, 1972 MB 280SE, 1978 Datsun 280Z, 1971 Ford T-Bird, 1972 Olds 88, 1983 Nissan Sentra, 1985 Sentra, 1973 230.6, 1990 Acura Integra, 1991 Volvo 940GLE wagon, 1983 300SD, 1984 300SD, 1995 Subaru Legacy L wagon, 2002 Mountaineer, 1991 300TE wagon, 2008 Murano, 2007 R320CDI 4Matic 52K, some Hyundai, 2008 BMW 535xi wagon, all gone... currently
2007 Honda Odyssey Touring, 2014 E350 4matic
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