Here is a cheap local alternative to the MB 10mm Triple Square head bolt tool.
Most generic auto part stores carry it..

Performance Tool# W1395.
4 pc serrated wrench set
12 pt. Triple Square




Here are some suppliers, watch out for HIGH shipping charges if you buy online.

Performance Tool 12-Pt. Bits (Triple Square) — 4-Pc. Metric Set, Model# W1395 | Star Keys, Bits Drivers| Northern Tool + Equipment

Performance Tool 12 PT Bits Triple Square 4 PC Metric Set W1395 | eBay

Performance Tool 12-Pt. Bits (Triple Square) - 4-Pc. Metric Set, Model# W1395 : Amazon.com : Automotive

Performance W1395 4-Piece Metric 12-Point Bit Triple Square Bit Set: Tools : Walmart.com

Performance Tool W1395 - Power Bit Set | O'Reilly Auto Parts

NAPA AUTO PARTS

https://www.google.com/search?q=Triple+Square+Metric+set&rls=com.microsoft:en-us&ie=UTF-8&oe=UTF-8&startIndex=&startPage=1&rlz=

https://www.google.com/search?q=Long+Triple+Square+Metric+set&rls=com.microsoft:en-us&ie=UTF-8&oe=UTF-8&startIndex=&startPage=1&rlz=



.

Attached Thumbnails

 

These are also useful on the 201/124/etc style rear-link arms. The newer kits your can buy from Meyle come with these type of bolts.

__________________
Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out.
Check here for compatibility, diagnostics, and availability!

(4/11/2020: Hi Everyone! I am still taking orders and replying to emails/PMs/etc, I appreciate your patience in these crazy times. Stay safe and healthy!)


82 300SD 145k
89 420SEL 210k
89 560SEL 118k
90 300SE 262k RIP 5/25/2010
90 560SEL 154k
91 300D 2.5 Turbo. 241k
93 190E 3.0 235k
93 300E 195k

I've used these for the head bolts on VWs. If you go to sears and ask for a tripple square driver you'll get a deer in the headlights look, then say it's also called an XZN bit the counter jockey just gets more confused

-J

__________________
1991 350SDL. 230,000 miles (new motor @ 150,000). Blown head gasket

Tesla Model 3. 205,000 miles. Been to 48 states!
Past: A fleet of VW TDIs.... including a V10,a Dieselgate Passat, and 2 ECOdiesels.
2014 Cadillac ELR
2013 Fiat 500E.

I've had bad luck with those... The ones I had didn't fit right and striped the head out.. Got a snap on, and no more problems...

__________________
All it takes for evil to prevail is for good men to stand by and do nothing.

Too many people tip toe through life, never attempting or doing anything great, hoping to make it safely to death... Bob Proctor

'95 S320 LWB
'87 300SDL
'04 E500 wagon 4matic

Snap-On, MAC, Proto, Easco, Williams, Indestro all make these for the US military, so if you can get a surplus set cheap, they will wear like...well, actually they WON'T wear, and that's the point.

__________________
Strelnik
Invest in America: Buy a Congressman!

1950 170SD
1951 Citroen 11BN
1953 Citroen 11BNF limo
1953 220a project
1959 180D
1960 190D
1960 Borgward Isabella TS 2dr
1983 240D daily driver
1983 380SL
1990 350SDL daily driver alt
3 x Citroen DS21M, down from 5
3 x Citroen 2CV, down from 6

got a set at autozoo

__________________
-SpecialDelivery
1985 300CD Silver/Blue H&R Suspension (Sold, still cryin over that)
1982 300SD Silver/Blue '85 OM617 (Sold)
1982 300D - Blue/Blue (Sold)

for owner