No.
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The 300Tdi lights (but not indicators) are interchangeable with the first D2s. The 300 and D2 is different around the indicator.
When the D2 lights/indicators became one unit, early D2 and later D2 were interchangeable (same around the indicator) but not with the oldr 300.
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Google for images to see what I mean - they are not interchangeable, but also not impossible.