the big round sensor is the temp sensor for the GP relay.

The interior I have is light brown, has all the door panels, B pillar and rear seat cover. Front seat covers are gone. Sorry, no right side mirror.

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H.D.B.
OBK #45
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'75 W115 240D, wife's dd, 197K
........'75 W115 300D, my dd, 245K
.. .. ..........'82 W126 300SD, the 'someday' project