For the e-torx socket get this set
https://www.amazon.com/gp/product/B0002NYBVO
Not the one from Hazard Frought. The HF set does not fit the splines correctly since it is a Chinese copy and can strip out the bolt. The Lisle set is US made and they paid the $$ to license the Torx design properly.

The Lisle sockets fit very snugly on the bolt. In fact you have to be careful because an E12 socket will "almost" sit down on an E10 bolt and if you are not careful that will strip it out. Found that out the hard way on my OM642 oil cooler job. Luckily it did not destroy the bolt and it was a one use only bolt that was getting replaced anyway.

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The OM 642/722.9 powered family
Still going strong
2014 ML350 Bluetec (wife's DD)
2013 E350 Bluetec (my DD)

both my kids cars went to junkyard in 2023
2008 ML320 CDI (Older son’s DD) fatal transmission failure, water soaked/fried rear SAM, numerous other issues, just too far gone to save (165k miles)
2008 E320 Bluetec (Younger son's DD) injector failed open and diluted oil with diesel, spun main bearings (240k miles)

1998 E300DT sold to TimFreeh
1987 300TD sold to vstech