I recently purchased an used engine and performed a cold compression test prior to attempting to start it. I couldn't run it long enough to warm it up since it wasn't in a car. My results were approximately 260 on #1 and about 350 on #2-5. It was about 70F outside when I did mine. Your numbers seem low to me, but maybe mine seem high to you.

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-Brian

1983 300TD
1982 240D
1981 280TE