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Electrical Damage After Connecting Wrong Terminals in Mercedes Benz C350e 2017 (S205)
I have a 2017 Mercedes-Benz C350e (S205). While working on the engine pre-fuse box, I accidentally connected the terminals for the "engine fuse and relay module" and the "on-board electrical system battery connection" (terminals No. 3 and 4 as shown in the diagram), withou disconnecting the battery This caused sparks to appear at terminal 3 (engine fuse and relay module), and now the car has no electrical power at all—there is no response to the remote key or the start button.
Could this have caused a severe damage? Where should I look for possible issues or damage?
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This caused sparks to appear at terminal 3 (engine fuse and relay module), and now the car has no electrical power at all—there is no response to the remote key or the start button.
