Any ways around this? Has anyone else found a socket that will remove these 12 point bolts? I cant find my socket, and torx simply will not do the job. I can order a socket, because I doubt anyone local has one, but I'd love to get this engine torn down today.

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1987 300SDL #1, 1987 300SDL #2, 1980 240D, 1982 300SD, 1994 S350, 1990 350SDL, 1991 350SD, 1985 300D, 2005 E320CDI

Gone, but not forgotten: 1981 300SD, 1982 300SD, 1987 300SDL, 1983 300TD, 1980 300CD, 1981 300SD #2, 1987 300D, 1987 300TDT, 1980 300D

Napa sells them.

VWVortex.com - Source for good quality triple square (serrated) bits

It's called a triple square or XZN

Thanks. At the store now picking up a set from Lisle.

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1987 300SDL #1, 1987 300SDL #2, 1980 240D, 1982 300SD, 1994 S350, 1990 350SDL, 1991 350SD, 1985 300D, 2005 E320CDI

Gone, but not forgotten: 1981 300SD, 1982 300SD, 1987 300SDL, 1983 300TD, 1980 300CD, 1981 300SD #2, 1987 300D, 1987 300TDT, 1980 300D

My set of four triple-square bits (M6-8-10-12) carried the "OEM" housename and came from "Pep Boys" for $13. The bits fit in any common 1/2" socket for use with ratchets, bars, and torque wrenches. The M10 fits the OM603 head bolts. Any McParts store should be able to get something similar.

Jeremy

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"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970

Pick up 2 or 3 sets while you're there. The torque required to release a bolt once coolant seeps into the threads and calls it home can overwhelm a non-German made bit.

Sixto
87 300D^2

Or, I'd spend money on a decent socket by snap on or MAC

Samstagsales.com has them as well in hazet and stahwhile brand as well

I bought 4 sets thinking they would break. But they were USA made, I am impressed. I thought the USA's last exports were obesity and Snuggies.

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1987 300SDL #1, 1987 300SDL #2, 1980 240D, 1982 300SD, 1994 S350, 1990 350SDL, 1991 350SD, 1985 300D, 2005 E320CDI

Gone, but not forgotten: 1981 300SD, 1982 300SD, 1987 300SDL, 1983 300TD, 1980 300CD, 1981 300SD #2, 1987 300D, 1987 300TDT, 1980 300D

Yep, I broke the tip off one of the Pep Boys XZN bits working on my subframe project and ended up needing a couple sets. Though actually the broken stub was still effective.

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1987 300D, arctic white/palomino--314,000 miles
1978 240D 4-speed, Euro Delivery, light ivory/bamboo--370,000 miles
2005 Jeep Liberty CRD Limited, light khaki/slate--140,000 miles
2018 Chevy Cruze diesel, 6-speed manual, satin steel metallic/kalahari--19,000 miles
1982 Peugeot 505 diesel, 4-speed manual, blue/blue, 130,000 miles
1995 S320, black/parchment--34,000 miles (Dad's car)

The ones I got came from pelican parts -before they bought this forum -they were for the 617

So much for being impressed...

Cheap American crap.

Ah well, very tired anyway, Midnight here.

Good night.

Attached Thumbnails

 

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1987 300SDL #1, 1987 300SDL #2, 1980 240D, 1982 300SD, 1994 S350, 1990 350SDL, 1991 350SD, 1985 300D, 2005 E320CDI

Gone, but not forgotten: 1981 300SD, 1982 300SD, 1987 300SDL, 1983 300TD, 1980 300CD, 1981 300SD #2, 1987 300D, 1987 300TDT, 1980 300D

Should have bought a snuggie.

I could have told you lisle was crap.

The correct, factory used socket, from hazet is $53. If I were removing and installing head bolts I'd buy it.

http://www.samstagsales.com/mercedes.htm#cylinder



You didn't mention following a removal sequence, have you gotten ahold of the factory service manual for this sequence?

I bought a Stahlwhile XZN from Ebay for around $20 delivered for 617 head bolts. The shank must be long and thin to fit the cam tower headbolts (on the 617). The XZN bits driven by a 1/2" socket will not fit due to interference. Not sure if you will have that problem or not.

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85 300D turbo pristine w 157k when purchased 161K now
83 300 D turbo 297K runs great. SOLD!
83 240D 4 spd manual- parted out then junked

I bought a Stahlwhile XZN from Ebay for around $20 delivered for 617 head bolts. The shank must be long and thin to fit the cam tower headbolts (on the 617). The XZN bits driven by a 1/2" socket will not fit due to interference. Not sure if you will have that problem or not.

__________________
85 300D turbo pristine w 157k when purchased 161K now
83 300 D turbo 297K runs great. SOLD!
83 240D 4 spd manual- parted out then junked