I'll start with my location-based charging issues that I've discussed elsewhere (see p. 4 of
I regret I bought it). I'd like to thank @ericky and others who have helped me so far.
I have been unable to charge as intended using any of the 4 modes I know of when at my home location. Here is the status of my car and a description of the failures:
I set a charging station location in the Vehicle menu with a departure time set to 7:45 am each day, with no climate preconditioning. I then configured and selected a preferred charging time (12:05 am - 2:55 pm) corresponding to my low time-of-use electric rate. I prepared for charging like this on April 5:
- Car was at 30% SOC, and the car was at the selected charging location.
- I set immediate charging to 20% and scheduled charging to 80%
- "Unlock AC cable automatically" was selected
- I powered the car off (electric parking brake) and exited the car
- Car was unlocked
- I plugged in my EVSE which has charged several other cars flawlessly for 8 years
Case 1: Departure time + preferred charging time set as above:
The car did initiate a charge early the next morning (some time before 3am) but then stopped charging a little over an hour later. I inspected the EVSE and vehicle, and neither indicated any faults on their displays. I unplugged the EVSE, power cycled the car, and plugged the EVSE back in. The same thing happened: it started charging and stopped for no apparent reason after about an hour. I repeated the restart process, and eventually the car stopped charging at the scheduled 7:45 am departure time.
Case 2: Only departure time set:
I repeated the above process on April 14, but this time the car was at 40% SOC and I deselected the preferred charging time. Only the departure time was selected (unchanged from 7:45 am). The car did start charging sometime in the morning of April 15 until it stopped at the scheduled departure time of 7:45. That is the good news. The bad news is that it only charged to 69% SOC, not the specified 80%. I later downloaded the electric usage data from my utility (house has a smart meter), and I saw that the whole house was drawing only about 80% of the maximum power of the EVSE (i.e., ~19 vs 24 Amps of current) when the car was charging. The house drew the full power of the EVSE when I charged a different car with the same EVSE about 2 weeks earlier.
Case 3: Charge Now selected:
On April 15 I attempted to bypass the schedule and charge immediately by selecting "Charge now" on the car's "Goodbye" exist screen it displays when it is powered off. I exited the car and plugged in the EVSE. The green light came on and the car started charging, but it stopped about 1 minute later. I repeated this process with the same result, and this was confirmed by other ID.4 owners on vwidtalk.com.
Case 4: Charge immediately via Car-Net:
Car-Net shows the battery SOC and climate status. However, clicking "Start Charging" always gives a "Command Timeout" error - unable to communicate with the vehicle (10/10 tries; could be due to poor mobile network connection?)
Other owners in the vwidtalk.com forum replicated the exact same behavior in Cases 1 and 3 above.
@ericy recorded his EVSE's power output and noted several short periods where the car stopped charging completely, and the car also did not draw the full available power from the EVSE then.