There are two known serial errors:
- Vehicles with a 22 kW charger suddenly do not charge at all or only charge in one phase
- The problem here is the 22 kW charger of the first series "D01"
- These were installed in every vehicle by the factory
- The "D02" series was only installed when the charger got replaced
- The problem is an built-in capacitors in the input filter of the 22 kW charger (22kW Charger - BRUSA NLG664 Teardown & Error Analysis)
- These burst at some point and kill the corresponding phase
- These were installed in every vehicle by the factory
- The only way to prevent this error is by buying a vehicle with a D02 charger
- I strongly advise against third-party solutions
- The problem here is the 22 kW charger of the first series "D01"
- The vehicle can no longer be driven and charged after a long period of it beeing parked
- The HV battery is deeply discharged
- The reason for this is that the 12V battery is defective and has therefore drained the HV battery
- This error can be prevented by replacing the 12V battery every 3-5 years
- Affected batteries have to be opened and charged manually (smart ED3 17.6kWh battery repair (feat.P18051C / bricked BMS))
- Be careful not to break the current sensor in this process
- The HV battery is deeply discharged
Not a series defect in this sense, but two specialities of the 22 kW charger:
- It does not charge 1-phase faster than 16 A.
- The built-in Brusa charger can also charge 1-phase 32 A.
- Smart has made this software adjustment so that it never charges with an unbalanced load anywhere in Europe
- With the ED4, however, they gave up on that. It can also charge 32 A 1-phase
- The charger only charges > 16 A with 2 or 3 phases
- The built-in Brusa charger can also charge 1-phase 32 A.
In addition, two campaigns for which there were no known defects or the like. This was preventive and was done for everyone without exception:
- The 22 kW charger has been around from the beginning, i.e. since the end of 2012, and there are also cars from that time with it. But there was a delivery stop at the beginning of 2013 and something was done to the 22 kW charger. In mid-2013, vehicles with 22 kW were delivered again. In between there were only vehicles with 3.7 kW and all 22 kW orders were pushed back.
- Furthermore, there was a recall for the battery of the very early smarties from 2012. The battery was replaced with a modified one. The battery then went from the original 200,000 cycles for the HV contactor up to 300,000 cycles. Today there is practically no car with only 200,000 cycles, I have never seen one. All have got 300.000 cycles.