A4 - hazards and interior switch on after rain
Discussion
If you remove the battery, there are some drainage holes that get blocked up with leaves etc, causing water to drain through the pollen filter. This then drips down the chassis to where (I think it's) the ECU is located.
Replace the connector for the ECU first, then if needed go see a specialist for a new ECU. Should just be the plug/socket combo though.
HTH
Andy
Replace the connector for the ECU first, then if needed go see a specialist for a new ECU. Should just be the plug/socket combo though.
HTH
Andy
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