12 V on a battery after 2 days is not good. A 0.13 amp draw should not bring it down that low in 2 days! Alternator not charging properly? Belts loose? Bad battery? Get a cig.. lighter voltmeter from Radio Shack and watch it while you drive and report the results. You should see 13 to 14 v depending on the electrical loads.

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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