I will check again, but I am pretty sure it was 150k. Its the "fine tuning" pot that adjusts the full/empty range - at least that is my understanding. Looks like it is/was original.

I am only replacing resistors first, then I will move onto the pot if needed.

But I will check my reference photos again and post if I was wrong about 150k.

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1991 560 SEL / 185k miles
1992 750il / 17k miles - project car