Hey Mic,
Once you see it you wont believe how you missed it.
If your under the car, put your head right below but in front of the starter, look straight up, as you look straight up you will see the very front of the starter and the engine block, should be pretty clean/aluminum. There are a few sets of numbers, write them all down and compare. Let me know if this works for you.
Jeff
95 E34 530I V2.37
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Those who make peaceful revolution impossible will make violent revolution inevitable.
John F. Kennedy