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Well about a month ago the M was acting weird. The keyless entry wouldn't work and she wouldn't start. Also the infamous steering sensor CELs came on. Ended up being the battery in the key fob. Then again the car would be dead. Bought a new battery and all was good. Now the same things are going on. When the M sits over night it'llbe dead come morning. Also i did the DIY on the steering sensor and it didn't change anything. I'm running out of ideas.

First what would cause the car to drain over night even with a new batter?

Second after cleaning the steering sensor what elsecan I do to clear the CELs . The car drives like normal.
 

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I've seen where people mention here that comfort access on one of the door handles go bad and cause this. It won't go to sleep.
 
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