what's higher temps? the m103,m104 & m119 generation are designed to run in the 90's for optimal burn and for epa requirements. at least those are the engines we are discussing here aren't we? it has been stated many times on this forum that 120C is safe on these motors according to MB. unfortunately one component breakdown will put you over the top and cause serious damage. i myself have only installed the cool harness - haven't seen temps over 100C so far...
1993 300e-2.8 - gone now <sigh>
"Do not adjust your mind, it's reality that's malfunctioning"