The one bad thing about tags is that they are often removed. I'm not aware of any 560SL's without limited slip. If your car has milage on it the clutches are probably worn and if you jack up one wheel you will probably be able to spin it like a standard differential. That doesent mean that the limited slip feature isnt working at all. It will need a partial torque load on one wheel to engade the worn clutches. With new clutches there is a preload on the clutches that gives you some traction on glare ice.

Since I dont know what the clutches are made of and since MB does not approve of any other gear lube. I use only MB gearlube for this car. It is $62.00 for 2 qt. but a cheap insurance policy in that I know am putting the right stuff in.

John Roncallo