Problem Description and Possible Solution
A dead battery can be caused by a faulty seat control module that does not properly shut down. Spilling liquids on the front seats can cause these modules to fail.
Problem DataRepairPal Verified
Average mileage: 108,440 (42,000–182,000)
22 people reported this problem
nobody could figure out what the problem was for weeks, after many jump starts, someone finally did. this is def something Mercedes should recall, all the great features i liked in the beginning, are all failing me now...:(
My battery kept going dead every day. I was told it may be a seat control module. I traced it back to the passenger CSM. After I disconnected it, the battery stopped going dead. The CSM is supposed to shut off when you turn the car off. Apparently the CSM does not shut off completely, thus draining your battery.