Mercedes-Benz EQS Charger Won't Start a Session
You connected the CCS2 cable to your EQS's right rear charge port, but the Hyperscreen shows no charging activity. No power flowing, no progress. This is frustrating, especially in a flagship sedan where everything should just work. The cause is usually authentication, cable seating, or the charger itself, not the EQS.
Symptoms
- CCS2 connector plugged in but the Hyperscreen shows no charging activity
- Charger screen displays an error or stays idle after authentication attempt
- Plug & Charge does not authenticate automatically at a supported station
- Charge port LED does not illuminate or blinks an error pattern
- Mercedes me app shows the EQS as connected but not charging
What to Do
- 1
Remove and firmly reseat the CCS2 connector
Pull the connector out of the right rear charge port. Check for debris or moisture. Push it back in straight and firm until you hear a click and see the charge port LED respond. The CCS2 connector is heavy, so support it with both hands to ensure proper alignment.
- 2
Authenticate manually if Plug & Charge failed
Open the charging network's app and start the session by scanning the QR code or selecting the charger. If you have an RFID card for this network, tap it on the reader. Do not wait for Plug & Charge if it did not work within 30 seconds.
- 3
Disable scheduled charging in MBUX
On the Hyperscreen, open Settings, then Charging. Turn off any departure time or scheduled charging window. At a public charger, you want charging to start immediately. Re-enable scheduled charging when you are back at your home wallbox.
- 4
Lock and unlock the EQS to reset the charge controller
Use the key or Mercedes me app to lock the car. Wait 15 seconds, then unlock. This resets the charge port locking mechanism and the onboard charging communication module. Reconnect the cable after unlocking.
- 5
Try a different connector or charger at the station
If the station has multiple CCS2 connectors, try a different one. If the entire station seems unresponsive, use MBUX navigation to find another nearby charger. Report the faulty charger through the network's app.