The contact owns a 2020 Land Rover Range Rover Evoque. The contact stated that there was unknown fluid leaking from the vehicle. There was an unknown amber warning light illuminated. The contact added water to the radiator and the warning light temporarily turned off but illuminated again. The vehicle was taken to the local dealer, where it was diagnosed that the rear emission battery needed to be replaced. The mechanic noticed a leak inside the vehicle that was flowing onto the onboard computer of the vehicle. The mechanic determined that the windshield wiper box line was the cause of the leak. The water was leaking from panel number one. The leak started at the front windshield to the driver’s side window down to the air bag and the hose connected to the windshield wiper box into the firewall pillar and to the rear windshield. The vehicle was not repaired. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 40,000.