I can check later. But on the M104 engined 124 cars, the airbox sits in the front left (passenger in the US) corner of the engine compartment. The air intake is into the bottom of the box, from a snorkel that *I think* extends forward and under the bumper. Basically, the air is drawn in from the grille slots below the front bumper. I'd guess a decent size wave in 12" of water would be enough to flood it. I wonder how much water an engine can ingest without damage.

Oh yeah, it's totally different than the M103 cars before 1993.

- JimY