Hitting the starter may work to jar loose the stuck solenoid. Hitting the solenoid is what you want if it is jammed. The solenoid has to pull in before the brushes get power.

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85 300D turbo pristine w 157k when purchased 167,870 July 2025
83 300 D turbo 297K runs great. SOLD!
83 240D 4 spd manual- parted out then junked