Probably best to specify Sigla, Sekurit or PPG.

Those are acclaimed to be the best, for Mercedes, though opinions differ around here
about which of them should be your first choice

Make sure the trim and gaskets are properly installed or they will leak.

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1991 560 SEC AMG, 199k <---- 300 hp 10:1 ECE euro HV ...

1995 E 420, 170k "The Red Plum" (sold)

2015 BMW 535i xdrive awd Stage 1 DINAN, 6k, <----364 hp

1967 Mercury Cougar, 49k

2013 Jaguar XF, 20k <----340 hp Supercharged, All Wheel Drive (sold)