Some Mercedes-Benz 420SEL owners report experiencing difficulties when removing the bottom water pump bolt, particularly after the other bolts have been taken out. These challenges often stem from the need to locate a cutout on the dampener that accommodates a tool for accessing the bolt. Additionally, owners may need to rotate the crankshaft to a specific position to reach the bolt through the round gap in the dampener. Following these steps can help ensure successful removal of the bottom water pump bolt without further complications.
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