Tool to remove head bolts on M103
 

What tool fits the head bolts on the M103 engine?

Long one is MB p/n 617 589 00 10 00 and is made by Hazet. Short one is Stahlwille #119 589 00 10 00. I had to have the short one for the E320 rearmost head bolts.

Technictool.com carries the tool - not sure of the size. They carry a triple-square 8mm-10mm-12mm-14mm. Their parts number is S1054. The MB part number is 617 589 00 10 00. Here's a photo of the technictool # S1054:

http://www.technictool.com/long%20allen%20sockets.htm

I bought mine at O'Reilly's auto parts. It's a size 12 Torx bit, and you need a half inch socket to turn it. Cost about $8 if I remember.

You can probably find one at like an Autozone or Pep Boys as well.

~Paul

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'91 300E, 212k miles