Prior to our '90 300TE we owned an '80 300TD (OM617 diesel). Prior to our purchase it had some engine work that obviously involved the crankshaft pulley and harmonic balancer. The mechanic obviously neglected to fit the correct washers under the six smaller bolts.

Initially we had an engine vibration that I could not find. Then one night the vibration suddenly got worse followed by the sound of something hitting the fan (the s**t hit the fan so to speak). Investigation with a flashlight revealed the pulley sitting at a funny angle. Three bolts were missing and the remainder either sheared off or tore through the pulley hub. It was a tow-it-home job and a bit of unplanned work for me.

Fimum Fit mentions the dual mass flywheel on BMWs. Mercedes manual transmission cars with the M104 and the later M103 (I think) also got dual mass flywheels.

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107.023: 350SLC, 3-speed auto, icon gold, parchment MBtex (sold 2012 after 29 years ownership).
107.026: 500SLC, 4-speed auto, thistle green, green velour.
124.090: 300TE, 4-speed auto, arctic white, cream-beige MBtex.
201.028: 190E 2.3 Sportline, 5-speed manual, arctic white, blue leather.
201.028: 190E 2.3, 4-speed auto, blue-black, grey MBtex.
201.034: 190E 2.3-16, 5-speed manual, blue-black, black leather.