I'm not a tech, but from what I have read on this site for the last 7-8 months, mercedes bottom ends are usually very reliable.

I haven't read a story at least I don't think I have yet about a bottom end blowing out. Valve stems and seals, head gasket, timing, etc, are all that I read about.

Any other brand of car, I'd agree the bottom could possibly go out, but then again, it could last for a 100k or more befoe it does.

If your shop is good, and you are hapy with their work, and they are good at what they do, you will end up happy.

Alon

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'92 300CE - Sold
2004 C240 - 744 - C7 Wheels - Android Radio
2002 C320 - 816 - Sport Wagon - Sold
2006 E350 Wagon - 368 - Dead
2015 GL350 Bluetec - 197U