Ah, thank you. One further question: The is the tip of the solenoid meant to clip onto the armature an any way? It appears to just slide in there (with a lot of pressure to overcome the spring) and then get screwed on.

Additional question... In all the bench test videos I've seen, the battery is fully connected to the starter, while the starter lays dormant. It is then actuated by jumping the ignition wire. On my starter, as soon as I connect the negative terminal to the battery, I get a huge spark at the battery and the starter whirs up. This cannot be right...

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1981 240D 4sp manual. Ivory White.