To make it easier on yourself loosen the top bolt with the engine mount offset tool then use a stubby 5/8 combination ratcheting wrench to remove the bolt. 3/8" socket drive.
16mm Engine Mount Socket Wrench for Mercedes Benz W220/ W210/W203/W221/W211/W204
16mm Offset Engine Mount Socket Wrench for Mercedes Benz Hand Tool High Quality
16mm Offset Engine Mount Socket Wrench for Mercedes Benz W220/W210/W203/W221
Engine Mount Bolts Set for Porsche 912 Engine Mount Bolt Kit Engine Mount
Crane Engine Balancer Engine Mount Cap 2000LB Engine Mount Auto Repair Tool