I have seen salt water corrode a relay to the point where it actually pushed the metal cover off the relay. It was a 1982 Mercedes that rolled into the Atlantic Ocean. The relay was what controlled the power seats. It was behind the drivers kick panel about ankle high. It was the only reason for the owner to bring the vehicle back after an $8300 repair bill. The relay failed a month after we gave the car to the customer at the Benz dealership I woked for in the Florida Keys. The owner decided she wanted the car repaired and she had enough money to own a house in Florida right on the Ocean.
regards
Mech
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