HELP!!! I have just bought an 05 plate A6 tdi 130. I had an issue with the hazards and indicators staying on. I discovered the scuttle panel issue that was full of water which I have cured. And the ccu that was full of water and corroded. I have cleaned and dryed out. Indicators now working hurrah. Now the esp and brake warning and a glow plug flashing light on the dashboard have appeared. I have had the code read and it says implausible break switch and no brake lights. Will changing the switch cure it. Or will it need the fault code clearing. Or is it something to do with the ccu still