After replacing the guide rods of my 300Se (W126) it has to be aligned.
The local dealer only does the toe-in, not camber and castor so I have to go to an independent shop.
Last time I went there the steering wheel was way off centre. The corrected this by repositioning the steering wheel.
I would like to make a steering position check screw to take to the shop.
For this I need the dimensions and tread of this screw.
Since I am (very slowly) recovering from an unfortunate contact with a tick I am at the moment not able to get under the car myself. Can anyone help me?

It's part # 116 589 06 21 00.

I believe it is an 8 X1.0 bolt with the end sharpened. Can't be 100% sure of the dimensions; maybe 85% sure? Length doesn't matter; maybe an inch and a half. It just stops the steering nut/working piston in a midway position by the sharp end sticking into a "dimple" inside.

See 46-412 in the manual. Good luck

Where (anatomically; not geographically) did that tick bite you?

__________________
The Golden Rule

1984 300SD (bought new, sold it in 1988, bought it back 13 yrs. later)

I was wondering if this is also called a tie rod ? I was told I NEED to change them , becausthey have some play when I move them with my hand ?e my wheels are shaking when I hit 40MPH and

The bolt is a M8 X 1.00 I just had to make one for the 240D's new steering box.

The steering boxes are different, according to Mercedes shop.com. But if jbaj007 gave the right Mercedes tool number based on the W126 manual then that is the same Mercedes tool number used for the W123 steering box. And it is a M8 X 1.00. Get a 20MM length bolt.

The tie rods go from the wheel steering arm to the drag link or center link. There are 2 arms and each end has a ball joint on them.

http://catalog.eautopartscatalog.com/mercedesshop/sophio/wizard.jsp?partner=mercedesshop&clientid=catalog.mercedesshop&baseurl=http://catalog.peachparts.com/&cookieid=1VG01573Y1VG01EAIG&year=1985&make=MB&model=380-SE-001&category=M&part=Tie+Rod+Assembly

Dave

__________________
1970 220D, owned 1980-1990
1980 240D, owned 1990-1992
1982 300TD, owned 1992-1993
1986 300SDL, owned 1993-2004
1999 E300, owned 1999-2003
1982 300TD, 213,880mi, owned since Nov 18, 1991- Aug 4, 2010 SOLD
1988 560SL, 100,000mi, owned since 1995
1965 Mustang Fastback Mileage Unknown(My sons)
1983 240D, 176,000mi (My daughers) owned since 2004
2007 Honda Accord EX-L I4 auto, the new daily driver
1985 300D 264,000mi Son's new daily driver.(sold)
2008 Hyundai Tiberon. Daughters new car

Dave,
Part # was for the W126, as you surmised. Good to have you verify size as it will prove to my teenage daughters that I'm not yet senile.

__________________
The Golden Rule

1984 300SD (bought new, sold it in 1988, bought it back 13 yrs. later)

Would the tie rods have anything to do with the inner wear to my front tires and that shake at speeds of 40mph ?

There is nothing I can post here, that will convince any teenage daughter, that anyone our age is not senile.

Dave

__________________
1970 220D, owned 1980-1990
1980 240D, owned 1990-1992
1982 300TD, owned 1992-1993
1986 300SDL, owned 1993-2004
1999 E300, owned 1999-2003
1982 300TD, 213,880mi, owned since Nov 18, 1991- Aug 4, 2010 SOLD
1988 560SL, 100,000mi, owned since 1995
1965 Mustang Fastback Mileage Unknown(My sons)
1983 240D, 176,000mi (My daughers) owned since 2004
2007 Honda Accord EX-L I4 auto, the new daily driver
1985 300D 264,000mi Son's new daily driver.(sold)
2008 Hyundai Tiberon. Daughters new car

Yes

Dave

__________________
1970 220D, owned 1980-1990
1980 240D, owned 1990-1992
1982 300TD, owned 1992-1993
1986 300SDL, owned 1993-2004
1999 E300, owned 1999-2003
1982 300TD, 213,880mi, owned since Nov 18, 1991- Aug 4, 2010 SOLD
1988 560SL, 100,000mi, owned since 1995
1965 Mustang Fastback Mileage Unknown(My sons)
1983 240D, 176,000mi (My daughers) owned since 2004
2007 Honda Accord EX-L I4 auto, the new daily driver
1985 300D 264,000mi Son's new daily driver.(sold)
2008 Hyundai Tiberon. Daughters new car

I have made the screw and took it to the shop.
Alignment is perfect now, steering wheel perfectly centred!
Thanks!