Quote:
Originally Posted by suginami
The M112's I've been in have been fairly quiet in the cabin, but they have a rougher quality to them than the M104. They've idled nowhere nearly as smooth as the M104.
But who knows, it could've been motor mounts. Put worn out motor mounts on the M104 or the M113, and you can definitely feel the vibration in the cabin.
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That being said, I have done motor mounts on 112's and 104's and the 104 always feels smoother...I still have to give my BMW M50TUB25 the nod for smoothest and quietest of them all...
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 Did you just pass my 740 at 200 kmh in a 300SD?????
1978 300SD 'Phil' - 1,315,853 Miles And Counting - 1, 317,885 as of 12/27/2012 - 1,333,000 as of 05/10/2013, 1,337,850 as of July 15, 2013, 1,339,000 as of August 13, 2013
100,000 miles since June 2005 Overhaul - Sold January 25th, 2014 After 1,344,246 Miles & 20 Years of Ownership 
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