Is anyone aware of where the braking and/or wheel rotation sensors are
on the ML-320?

Yesterday I had both the "ESP/BAS" and "ETS" warning lights illuminated.

I had planned to take my ML in for service tomorrow but remembered that
while pulling a boat out Sunday the rear wheels may have been wet (I
didn't think the water rose above the tire side wall though.)  Since it
was salt water this morning I hosed the rear wheels down quite liberally
and drove for about 5 miles and stopped.  When I restarted the warning
lights were no longer illuminated.

Last winter these lights came on, but didn't remain on.  It's quite
likely that on those days I was driving on salted roads.

Does MB not seal the sensor electronics?

Boden