2010 E350 S212 - battery went flat. Fans running after car locked

As title chaps. Our battery failed. New battery fitted but notice that the fans are running intermittently even after the car is locked and shut down Fan controller issue? I'm guessing someone's had the same problem?

As title chaps. Our battery failed. New battery fitted but notice that the fans are running intermittently even after the car is locked and shut down

Fan controller issue? I'm guessing someone's had the same problem?

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