This past 2 months I've been looking for a power steering box for my 84 300D. I finally stumbled upon one on eBay,, but I cannot find any specific information on it on whether it will work on my car or not. The owner is unsure as well. My old power steering box has no markings on it whatsoever the #part number is etched out.

Anyways here is the part https://www.ebay.com/itm/Mercedes-Benz-R107-W116-W123-280SL-450SL-300D-Power-Steering-Box-R1164610401-OEM-/304058844069?mkcid=16&mkevt=1&_trksid=p2349624.m46890.l6249&mkrid=711-127632-2357-0

If you need a steering box, you should contact Martureo on this forum.
He is the trusted source for everything steering box related.
He rebuilds and sells steering boxes for these cars and I had him rebuild my steering box.
Don't take any chances on ebay.


Jeff

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1984 300SD 300,000 miles--two tank WVO setup
2.88 diff & 500SEL anti-squat rear end

thanks I just send him a message!!

Ask him if he can re seal your P.S. pump at the same time, at this point many are beginning to weep....

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-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better

No leaks from mine, but both are at the extent of the adjustment on the sector shaft and still slight play. I've checked many in the junkyard and all were also at the limit, except one. Thought I lucked out, but I adjusted out the play to be sure before going to the effort of removing it. Turned out it was also showing ~6 threads on the adjustment bolt (screw outward to remove play). I wonder how they were driving that car with so much play.

I do have a used box I'll play with. Perhaps just replacing the recirculating balls will remove the play. BTW, I know the 300SD box differs from the 300D in 1982-85 cars, with different mounting holes.

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1984 & 1985 CA 300D's
1964 & 65 Mopar's - Valiant, Dart, Newport
1996 & 2002 Chrysler minivans

The ebay listing shows a 116 part number. I don't think that's the right one. I did a steering box on my '83 recently (reman from Pelican) and the PN was 123-460-58-01-88

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Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar.

83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 400,xxx miles
08 Suzuki GSX-R600 M4 Slip-on 22,xxx miles
88 Jaguar XJS V12 94,xxx miles. Work in progress.

So, how is it ? .

Any play ? .

How far has the adjusting screw been released ? .

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-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better

Ended up not buying it. Found someone on the forum to rebuild my steering box for a really good price.

Same question :

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-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better

Thanks for the support. I didn't notice this thread until just now.

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Onus probandi incumbit ei qui dicit, non ei qui negat

I recondition w123/w126/w124/w140/r107/r129/ steering boxes!


1984 300D "Elsa" odo reset 6/2011 147k
1983 300TD "Mitzi" ~268k OM603 powered
1995 E300 "Adelheid" 262k [Sold]

With steering boxes, unless you're using the part number to order one from a dealer (NLA), you've probably got the wrong number.

The number in the listing is the part number of the casing, its visible on the side of the box in raised characters. All w123 boxes have that 116 part number in that location. There's also one on the pitman arm cover and another on the pitman arm itself. These are all the individual part numbers for those components.

The real way to identify the steering box is to look at the mounting bolt pattern on the back. w123s differ significantly from w126s or r107s. Then I'd check the features: automatic compensation, power assist piston cover style, hydraulic fitting style, internal stop indication mark and pitman arm style. That's how I identify boxes and make sure they don't get mixed up.

__________________
Onus probandi incumbit ei qui dicit, non ei qui negat

I recondition w123/w126/w124/w140/r107/r129/ steering boxes!


1984 300D "Elsa" odo reset 6/2011 147k
1983 300TD "Mitzi" ~268k OM603 powered
1995 E300 "Adelheid" 262k [Sold]