Ignition - Fob Will not start car

Question by JudaJoy5 posted 1 year ago in E-Class

Mercedes 1998 E320 129,000 miles; On my way to work, put the fob in, all of the lights on the panel came on; like Christmas tree; fob would not turn. Located the battery was purchased 8/16 by the previous owner; notice there was off-white powdery substance on top of the cover before I could see the battery; and the same substance on the negative cable and inside the area where the battery sits; also the tube that is supposed to be connected to the battery for overflow, was disconnected to the battery, but was in the overflow whole bottom of the car. Thanks for your help! One other thing I had noticed when taking the key fob out it did not come out as easily as before as if it was magnetized to the fob area!