I just did the motor mounts on my 88 560SL for the left side I found it easier to remove the left exahaust manifold and crossover pipe. Since you already have the car and engine jacked up the manifold can be removed in about 1/2 hr.

For this car you need not worry about breaking bolts in the manifold flange since the nut inserts are replaceable. All of my manifold bolts and studs came out easily.

I think in the long run this way was faster and gave me better ability to clean the area and torque in the new mount correctly.

For the right side I just removed the windshield washer reservoir and I was able to get at everything with standard tools.

John Roncallo