I've been working on my Benz, following the shop manual instructions. It seems that every bolt and nut is the self-locking variety, and available mainly through the dealer at exorbitant prices. To be honest, I had never heard of such beasts, so I did a little research. Actually, they do exist, and the science behind them is quite sound. Those Benz engineers do know what they are doing. Here is a very useful link, and video clip:
Vibration Loosening of Bolts and Threaded Fasteners
The article states that "...the chemical locking category provides the greatest resistance to vibration loosening...". Perhaps, hardware nuts and bolts with Loctite will do the trick?
Does anyone have any information on this?
