All W124's with dual A/C aux. fans have a trapezoidal-shaped metal-pipe that wraps around the passenger's side aux. fan. You can see it clearly in each photo.
On W124's with single A/C aux. fans, the trapezoidal metal-pipe is in the center, because the single fan is in the center.
:-) neil
1988 360TE AMG
1993 500E
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