i know that benzes are built for the autobahn and driving pedal-to-the-metal the whole day.

though i run my 190e2.6 at superlegal speeds whenever i get the chance (and the guts), i do it on my overdrive 5th gear. I've never redlined the engine and tested the rev limiter. Nor have i kept the engine past 5000rpm for a prolonged period of time.

i just want to have an idea of the margins of overdesign the M103 engine has. Which parts am i wearing out quickly at these elevated engine speeds? Or is the engine just happy to oblige? Of course this assumes my oil pressure and water temp are at normal levels ...

any info is appreciated ...