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  #1  
Old 09-05-2010, 12:07 PM
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Steering box rebuild

Does anyone know if it would be a good idea to try to rebuild the steering gearbox on the 240D or just purchase a rebuilt one? Mine is very near the end of it's adjustment but there is still a substantial amount of play in the steering wheel. I have checked the rest of the steering components and find no amount of wear or play that accounts for the play. The slop is evident at the Steering gear box. Thanks in advance for any information.

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  #2  
Old 09-05-2010, 12:21 PM
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It's easier to just buy a rebuild that has a warranty. I was going to rebuild the box in my SDL but my mechanic and I decided to leave that to the rebuild people. Plus it was easier.. unbolt old box, bolt in new. Line up wheels and steering wheel.. viola.
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  #3  
Old 09-05-2010, 12:45 PM
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^ X2... The rebuilding kits range from $14.95 for the seals only to 299.95 for a complete kit...

http://www.thefind.com/cars/info-power-steering-box-rebuild
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  #4  
Old 09-05-2010, 03:05 PM
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That is sort of what I figured, I just needed affirmation from you guys. Thanks! I will start saving my pennies for the rebuilt unit.
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  #5  
Old 09-06-2010, 02:17 PM
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I too went with rebuilt after all adjustment was gone (300,000 miles).

I will rebuild anyhting, but the price of a rebuilt for me was less than
the kit/parts.
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  #6  
Old 09-06-2010, 04:37 PM
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So are you guys needing new/rebuilt steering boxes because of warn out gears (nonadjustable steering slop) or leaking seals, which might be an easier fix or ... "if the seals are leaking the gears inside and probably shot" ? Mine leaks a little but the steering is nice and tight.
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  #7  
Old 09-06-2010, 04:47 PM
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Its usually both. You can only adjust the play out so much.
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  #8  
Old 09-07-2010, 04:31 AM
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Thumbs up

http://www.davidpetryk.net/Mercedes/Steering.htm
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I'm not a doctor, but I'll have a look.

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  #9  
Old 09-07-2010, 05:01 AM
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Cool write up!

I read it all and don't even need a rebuild.
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  #10  
Old 09-07-2010, 12:42 PM
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I did follow that rebuild article and rebuilt my PS gear box. I also rebuilt the pump. I will say, I am near the end of the adjustment. I didn't see any prices for the gears, when I rebuilt mine.
Tom
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  #11  
Old 09-07-2010, 07:15 PM
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The article doesn't remove the ball bearings. I rebuilt mine per the FSM instructions and only had 23 instead of the required 24. Of course when I got the car from the PO the first thing I did was R&R the steering box. The 45-60 degrees of slop in the wheel made that a necessity.

I think the PO or mechanic tried a rebuild/reseal and lost one bearing. When I reinstalled all 24 it didn't look like it wanted to fit in the available space.

For a full rebuild, I presume the ball bearings would also need replaced with the worn gears, if needed. Mine mic'd out at just under 7 mm.
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  #12  
Old 09-07-2010, 09:05 PM
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I read there are some organic washers that break down causing a great deal of slop in the box. Does not make sense for me for the gears internally to break down unless they are very soft... I mean, I do not see my PS oil full of metal filings.

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I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.
[/IMG]
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