Benz C240 4matic battery draining
Next test: Open the hood, wait 10 minutes (do not touch the car) remove the negative cable at the dome passenger side. Take a multi meter, use cables with clamps and in the 20A port, reconnect the battery over the multi meter and watch it. After 5-10 minutes it should go down to 100+ mA and after 30 minutes down below 20 mA.








