Mercedes-Benz EQC Charging at EVBox

Mercedes-Benz EQC Charger Won't Start: Quick Fixes

You have plugged your Mercedes-Benz EQC into a public charger, but nothing is happening. No charging animation on MBUX, no power flowing, just a dead charger screen. This is one of the most common frustrations at public stations, and the fix is usually simple.

Symptoms

• The charger display shows 'connect vehicle' even though the cable is connected
• MBUX does not indicate any charging activity
• The EQC's charge port LED stays off or blinks without starting
• The charger shows an error code after plugging in
• The CCS2 plug does not click securely into the port

What to Do

1. 1

   Unlock the EQC

   Make sure the car is unlocked. The charge port only opens and accepts a connector when the EQC is unlocked.

2. 2

   Insert the connector firmly

   Push the CCS2 or Type 2 connector straight into the port until it clicks. The EQC's charge port is on the right rear side. A locked connector initiates the communication protocol.

3. 3

   Start the session at the charger

   Tap your RFID card, open the network app, or use contactless payment. The charger needs this step before it will send power to the EQC.

4. 4

   Check MBUX for scheduling conflicts

   In MBUX, navigate to EV settings and check for charging schedules. If one is active, switch to immediate charging.

5. 5

   Unplug and reconnect

   Remove the cable, wait 15 seconds, and plug it back in. This resets the handshake between the EQC and the charger.

6. 6

   Move to a different charger

   If nothing works, the charger is likely faulty. Try a different stall or station and report the broken charger through the network app.

Mercedes-Benz EQC Charging Payment Rejected: Fixes

Your Mercedes-Benz EQC is plugged in and ready, but the charger will not accept your payment. RFID card ignored, app throwing errors, or bank card declined. This is not an EQC issue, but it still stops you from charging. Here is what to do.

Symptoms

• The charger displays 'authentication failed' or 'payment error'
• RFID card tap gets no response from the charger
• The charging app fails with a payment error when starting a session
• Contactless bank card is declined at the terminal
• The charger asks for payment but you have no compatible method

What to Do

1. 1

   Try a different payment method

   Switch from RFID to the app, or from the app to a contactless bank card. Most chargers support multiple payment options.

2. 2

   Verify your account status

   Open the charging app and check your payment method, balance, and subscription. Fix any expired cards or low balances.

3. 3

   Check which networks are accepted

   Look at the charger for logos of supported providers. If your provider is not there, look for a QR code for ad-hoc payment.

4. 4

   Use the QR code for direct payment

   Scan the QR code on the charger with your phone. It opens a web-based payment page where you can use any bank card without an app.

5. 5

   Cancel and retry

   If payment appeared to process but charging did not start, cancel the session in the app and authorize a new one.

6. 6

   Call the network support number

   Most chargers display a support phone number. The operator can sometimes start sessions remotely or identify payment issues.

Mercedes-Benz EQC Charging Slow: No Preconditioning

Your Mercedes-Benz EQC 400 4MATIC supports up to 112kW DC fast charging, but you are seeing much lower numbers on the MBUX display. Unlike newer Mercedes EVs, the EQC does not have battery preconditioning, which makes cold weather charging particularly slow. Here is what is happening and what you can do about it.

Symptoms

• DC charging power shown on MBUX is well below 112kW
• The 80kWh battery takes much longer to charge than expected
• Charging speed drops significantly above 70% state of charge
• AC charging is stuck at or below 11kW
• Cold weather charging is noticeably slower than in summer

What to Do

1. 1

   Check charging power in MBUX

   Open the charging status screen on MBUX. It shows current kW, battery temperature, and estimated time. This helps identify whether the car or charger is limiting speed.

2. 2

   Warm the battery through driving

   Since the EQC lacks automatic preconditioning, the best approach is to drive at motorway speeds for at least 20 to 30 minutes before arriving at a fast charger. This passively warms the battery and improves charging speed.

3. 3

   Choose chargers rated at 120kW or more

   Use the Mercedes me app or a charger map to find high-power stations. To reach the EQC's 112kW peak, the charger needs to be rated at 120kW or higher.

4. 4

   Avoid shared stalls

   At stations with paired CCS2 connectors, pick a pair where the other stall is empty. This gives the EQC the full charger output.

5. 5

   Charge between 10% and 80%

   Plan stops to arrive between 10% and 15% and leave at 80%. The EQC charges fastest in this range.

6. 6

   Avoid charging from a cold start in winter

   If possible, do not stop for a fast charge immediately after the car has been parked overnight in freezing temperatures. Drive for a while first to let the battery warm up naturally.

EVBox app vs third-party operator confusion

You see an EVBox-branded charger and download the EVBox app, but the session will not start because the station is operated by a different company. Many EVBox chargers are hardware only, with a separate operator managing access and billing.

Symptoms

• EVBox app does not show the station or cannot start a session
• You created an EVBox account but the charger asks for a different app or RFID card
• Charger has EVBox branding but the screen shows a different company name
• QR code on the charger leads to a different operator's website or app

How to Fix It

1. 1

   Check the operator name on the charger screen or signage

   Look at the charger display when it is idle. The operator name is usually shown on the welcome screen. Common operators using EVBox hardware include municipalities, parking companies, and energy providers.

2. 2

   Scan the QR code on the charger

   The QR code leads to the operator's platform, not necessarily EVBox. Scan it to find out which app or website you need.

3. 3

   Try a roaming RFID card

   If you have an RFID card from Shell Recharge, Chargemap, Plugsurfing, or another roaming provider, try tapping it. Many EVBox chargers accept roaming cards regardless of who operates them.

4. 4

   Search for the station in a multi-network app

   Apps like Chargemap or Shell Recharge aggregate many operators. Search for the charger location and you should see which operator runs it and how to start a session.

5. 5

   Download the correct operator's app

   Once you know who operates the station, download their app. The EVBox app only works for chargers that EVBox operates directly.

CHAdeMO connector availability varies

Some EVBox fast chargers have both CCS2 and CHAdeMO connectors, but the CHAdeMO connector may be out of service, removed, or restricted. CHAdeMO is being phased out in Europe and availability is declining.

Symptoms

• CHAdeMO connector is physically present but does not work
• Charger screen shows CHAdeMO as 'Unavailable' or 'Out of Order'
• CHAdeMO connector has been removed and the port is capped
• App shows CHAdeMO available but the physical connector is missing

How to Fix It

1. 1

   Check the charger before relying on CHAdeMO

   If your vehicle uses CHAdeMO, visually confirm the connector is present and functional at the station before planning your stop. App data may not reflect recent hardware changes.

2. 2

   Try the CHAdeMO connector even if the app status is unclear

   Plug in and attempt to start a session. Sometimes the app shows a stale status but the connector works fine.

3. 3

   Have a CCS2 adapter as a long-term solution

   If your vehicle only has CHAdeMO (common in older Nissan Leafs and some Mitsubishi models), CHAdeMO infrastructure is shrinking across Europe. A CHAdeMO-to-CCS2 adapter may be worth investigating for your specific vehicle.

4. 4

   Filter for CHAdeMO in your charging app

   When planning a route, filter specifically for stations with verified CHAdeMO connectors. User reviews and recent check-ins are more reliable than operator listings for CHAdeMO availability.

RFID card registration process unclear

To use an RFID card at EVBox-operated stations, you may need to register the card through the EVBox platform first. The registration process is not always obvious.

Symptoms

• New RFID card does not work at the charger even after ordering it from EVBox
• Card works at other networks but not at EVBox-operated stations
• You received a card but there are no activation instructions
• Online portal asks for a card number format you do not recognize

How to Fix It

1. 1

   Check the activation email

   When you order an RFID card from EVBox, they send an activation email. Check your inbox and spam folder. The email contains a link to activate the card in your EVBox account.

2. 2

   Add the card in the EVBox app or portal

   Log in to your EVBox account (app or web portal). Navigate to 'My cards' or 'Charge cards' and add the card using the number printed on it. The card does not work until it is linked to your account.

3. 3

   Wait for activation to propagate

   After registering the card, it may take up to 24 hours for the activation to reach all chargers. If the card does not work immediately after registration, try again the next day.

4. 4

   Use the app as a backup while the card activates

   You can start sessions through the EVBox app while waiting for your RFID card to activate. Tap 'Start charging' in the app and select the charger.

Charger offline due to firmware update

EVBox periodically pushes firmware updates to their chargers. During an update, the charger is temporarily unavailable. This can happen without warning and usually lasts 10 to 30 minutes.

Symptoms

• Charger screen shows 'Updating' or 'Maintenance' message
• Charger was working a few minutes ago but now shows as offline
• App shows the charger as unavailable with no estimated return time
• Multiple chargers at the same location are all offline simultaneously

How to Fix It

1. 1

   Wait 10 to 15 minutes

   Firmware updates on EVBox chargers usually complete within 10 to 30 minutes. If the charger shows an update message, it will likely come back online shortly.

2. 2

   Try another charger at the same location

   Firmware updates sometimes roll out one unit at a time. If there are multiple chargers, others may still be operational.

3. 3

   Check the app for status updates

   The operator's app or the EVBox app may show whether the outage is a scheduled update or an unexpected fault. Scheduled updates usually have an estimated completion time.

4. 4

   Move to an alternative station if you cannot wait

   If you need to charge immediately and the update is taking longer than expected, use a multi-network app to find the nearest available charger from any network.

Power sharing between connectors reduces speed

Some EVBox fast chargers share their power output between two connectors. When both are in use, each vehicle receives roughly half the charger's maximum power.

Symptoms

• Charging speed drops by half when a second car plugs into the same unit
• Dashboard shows 75 kW at a charger rated for 150 kW
• Speed suddenly increases when the car on the other connector finishes
• One side of the charger consistently delivers more power than the other

How to Fix It

1. 1

   Check if both connectors are on the same unit

   EVBox dual-connector chargers share one power module. If both CCS2 cables come from the same physical cabinet, they share power. Two separate cabinets are two independent chargers.

2. 2

   Choose an unoccupied charger unit if available

   If multiple charger units are available, pick one where the other connector is not in use. You will get the full rated power to yourself.

3. 3

   Understand how power sharing works

   Power sharing is dynamic. The charger allocates power based on what each vehicle can accept. If the other vehicle is at 80% and barely drawing power, you may get most of the charger's output even while sharing.

4. 4

   Wait for the other car to finish

   If your speed is reduced by sharing, it will increase when the other vehicle finishes. Check your dashboard periodically. The speed change happens automatically without any action from you.

5. 5

   Check your vehicle's own limits first

   Before assuming power sharing is the issue, verify that your car is not limiting the speed due to battery temperature, state of charge above 80%, or its own maximum DC charging rate.