I've had our C Max for about a month and need to go to a car wash to get rid of winter salt accumulations. I was wondering whether to get a wash that incudes the underside. I have typically done this at the end of the winter on all my cars.
The owner's manual, which only has instructions for washing the car yourself as far as I can see, does mention washing the underside. The service manager at the dealership where I bought the car, however, says he never recommends washing the underside of any car because of various sensors that might be affected.
I wonder whether this issue is any different for hybrids. Any insights?