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Update:So I received the "coolant in battery...drive unit needs to be replaced" pitch from the MB dealer last month as noted here. Since then, I had the car towed to an electric car specialist. They checked the level of coolant (full) and pressure tested it. Pressure test was good, coolant level hadn't changed, and there was no coolant in the motor. Large battery is not throwing any MB codes that indicate it's having a problem. All of the MB codes are indicating problems with 12V battery and electrical. The car is not recharging the 12V motor.So what's the deal? Is MB defrauding us? Negligent in that they know there's a problem that the new DU fixes temporarily? Or what?Has anyone had this electrical issue and fixed it by doing something OTHER than replacing the drive unit?
Update:
So I received the "coolant in battery...drive unit needs to be replaced" pitch from the MB dealer last month as noted here. Since then, I had the car towed to an electric car specialist. They checked the level of coolant (full) and pressure tested it. Pressure test was good, coolant level hadn't changed, and there was no coolant in the motor. Large battery is not throwing any MB codes that indicate it's having a problem. All of the MB codes are indicating problems with 12V battery and electrical. The car is not recharging the 12V motor.
So what's the deal? Is MB defrauding us? Negligent in that they know there's a problem that the new DU fixes temporarily? Or what?
Has anyone had this electrical issue and fixed it by doing something OTHER than replacing the drive unit?
