x2 graphite pencil! Magical for locks. Rub it all over the key then insert a few times in the tumbler. Do this with the door locks also. If you do this once a month you may never have lock problems. Never spray anything in the tumbler, which attracts dirt = eventual jamming. Nothing other than graphite should go in there. I carry a graphite pencil in every car now. This post just reminded me to use it. I will be creating a recurring event in my calendar to graphite my locks once a month.

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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