[2003 s600]

what is the short, wide radiator for in the center of the lower bumper. I thought it was a secondary heat exchanger for intercoolers but it does not go there. seems to go deep under the engine. where does it go?

 

[2003 s600]

thanks, oil cooler i guess. I wanted to add a larger heat exchanger for intercoolers in its place but i guess the oil cooler is needed.