Mercedes-Benz EQA Charger Won't Start a Session
You connected the cable to your EQA's right rear charge port, but nothing happens. No charging animation on MBUX, no power flowing. This is one of the most frustrating situations at a public charger, but it is almost always fixable on the spot. The cause is usually authentication, cable locking, or the charger itself.
Symptoms
- CCS2 connector plugged in but MBUX shows no charging activity
- Charger screen shows an error or stays on the start screen after tapping
- Plug & Charge does not authenticate automatically at a supported station
- Charge port LED on the EQA does not turn on or blinks red
- Mercedes me app shows the car as connected but not charging
What to Do
- 1
Remove and reseat the CCS2 connector
Pull the connector out of the right rear charge port. Inspect it for visible damage or debris. Push it back in firmly until you hear a click. The charge port LED should respond. If the cable feels loose or wobbly, the connector or port may be dirty.
- 2
Authenticate manually if Plug & Charge failed
Open the charging network's app on your phone and start the session from there. Or tap your RFID card on the charger's reader. Plug & Charge is convenient but not universal. Many networks still require app-based or card-based authentication.
- 3
Check for scheduled charging in MBUX
Open the charging settings in MBUX. If a departure time or scheduled charging window is active, disable it. At public chargers, you want charging to start immediately. Scheduled charging is designed for home use where off-peak electricity rates matter.
- 4
Lock and unlock the EQA, then try again
Use the key or Mercedes me app to lock the car, wait 10 seconds, then unlock it. This resets the charge port locking mechanism and the onboard charging controller. Reconnect the cable after unlocking.
- 5
Try a different connector or charger
If the station has multiple connectors, try another one. If the entire unit seems unresponsive, move to a different charger. Report the faulty charger through the network's app so other drivers know it is down.