Mercedes-Benz EQB Charging at Allego

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

You have connected your Mercedes-Benz EQB to a public charger, but the session will not start. MBUX shows nothing, the charger sits idle, and you are wondering what is wrong. This is one of the most common complaints at public chargers, and it is usually fixable on the spot.

Symptoms

• The charger screen stays on 'waiting' or 'connect vehicle' after plugging in
• MBUX does not show any charging activity
• The EQB's charge port LED does not illuminate
• The charger returns an error code after you connect
• The CCS2 connector does not click into place

What to Do

1. 1

   Unlock the EQB and open the charge port

   Ensure the car is unlocked. Press the charge port flap to open it. On some EQB models, you can also open it through the Mercedes me app.

2. 2

   Insert the connector firmly

   Push the CCS2 or Type 2 connector straight into the port until it clicks. The charge port is on the right side of the EQB. A locked connector triggers the charging protocol.

3. 3

   Authenticate at the charger

   Tap your RFID card on the charger reader, start the session in the network app, or tap your bank card on the contactless terminal. The charger needs authorization before sending power.

4. 4

   Disable scheduled charging in MBUX

   In MBUX, navigate to EV settings, then charging. If a schedule is set, switch to immediate charging so the EQB does not wait for a timer.

5. 5

   Disconnect and retry

   Unplug the cable, wait 15 seconds, and reconnect. This forces a fresh handshake between the EQB and the charger.

6. 6

   Try another charger

   If the charger remains unresponsive, it is likely out of service. Move to a different stall or station and report the faulty unit through the network's app.

Mercedes-Benz EQB Charging Payment Failed: Fix Now

You have connected your Mercedes-Benz EQB to a charger, but the payment will not go through. RFID not recognized, app error, or bank card declined. This is a charger-side issue, not an EQB problem, but it still blocks your session. Here is how to get charging.

Symptoms

• The charger displays 'authentication failed' or 'payment declined'
• Your RFID card tap produces no response
• The charging app returns an error when starting a session
• Contactless bank card payment is declined
• The charger asks for payment but no method works

What to Do

1. 1

   Try an alternative payment method

   Switch from RFID to the charging app, or from the app to a contactless bank card. Having multiple options ensures one failure does not strand you.

2. 2

   Check your account status

   Open the charging app and verify your payment method, balance, and subscription status. Fix any issues before retrying.

3. 3

   Verify the charger supports your network

   Look for provider logos on the charger. If yours is not there, you need ad-hoc payment via QR code or a different provider.

4. 4

   Scan the QR code for ad-hoc payment

   Most European chargers have a QR code that opens a browser-based payment page. Pay with any bank card, no app needed.

5. 5

   Cancel and restart the session

   If payment seemed to go through but charging did not start, cancel in the app and try again with a fresh authorization.

6. 6

   Contact the network's support

   The charger should display a phone number. The operator can sometimes authorize sessions remotely or troubleshoot payment issues.

Mercedes-Benz EQB 350+ Charging Slow: How to Fix It

Your Mercedes-Benz EQB 350+ supports up to 102kW DC fast charging, which is moderate for its class. If the MBUX display is showing far less than that, every charging stop takes longer than it should. Here is what affects the EQB's charging speed and how to improve it.

Symptoms

• DC charging power shown on MBUX is well below 102kW
• Charging the 70.5kWh battery takes significantly longer than expected
• Speed drops noticeably above 70% state of charge
• AC charging is stuck below 11kW at a faster station
• MBUX displays a battery temperature warning or conditioning indicator

What to Do

1. 1

   Check charging power in MBUX

   Open the charging status screen on MBUX. It displays current kW, battery temperature, and estimated completion time. This tells you whether the car or charger is limiting speed.

2. 2

   Precondition the battery before arriving

   Enter the charging station as a destination in MBUX navigation. The EQB will precondition the battery to optimal temperature while you drive. This is the single most effective step in cold weather.

3. 3

   Find a charger rated at 100kW or more

   Use the Mercedes me app or a charger map to locate high-power stations. Ionity, Fastned, and some Shell Recharge stations offer 100kW+ chargers.

4. 4

   Avoid power-sharing stalls

   Choose a charger pair where the adjacent stall is empty. This gives the EQB the full output of the charger.

5. 5

   Charge between 10% and 80%

   Plan stops to arrive between 10% and 15% and leave at 80%. This keeps you in the EQB's fastest charging window.

6. 6

   Check for software updates

   Mercedes releases over-the-air updates that can improve charging behavior. Check MBUX under Settings for available updates.

Allego app not starting a session

You open the Allego app, select the charger, tap 'Start,' and nothing happens. The app may spin, show an error, or claim the charger is offline even though the screen in front of you says otherwise.

Symptoms

• Allego app shows a loading spinner that never finishes
• 'Charger unavailable' in the app but the physical charger looks operational
• App crashes when tapping 'Start Charging'
• Session appears to start in the app but the charger does not begin delivering power

How to Fix It

1. 1

   Make sure you selected the correct charger and connector

   Allego stations often have multiple charging points. Each one has its own ID, usually printed on a sticker near the connector. Match this ID to the one shown in the Allego app. Selecting the wrong point is the most common reason a session will not start.

2. 2

   Plug in the cable before starting the session in the app

   Most Allego chargers require the cable to be connected to your car first. The charger needs to detect a vehicle before it will accept a start command from the app.

3. 3

   Close and reopen the Allego app

   Force-close the app completely (swipe it away from your recent apps), wait a few seconds, and reopen it. Try starting the session again.

4. 4

   Scan the QR code on the charger instead

   Most Allego chargers have a QR code that opens a web-based payment page. This works independently of the Allego app and lets you pay with a credit card without needing an account.

5. 5

   Use an RFID card from a roaming provider

   If you have an RFID card from a provider like Shell Recharge, Plugsurfing, or Chargemap, hold it against the reader on the charger. This bypasses the Allego app entirely.

Charger not appearing in the Allego app

You are standing in front of a physical Allego charger, but it does not show up on the Allego app map. The charger is clearly operational and other drivers are using it.

Symptoms

• Charger location is missing from the the Allego app map entirely
• App shows the location but with zero available connectors
• Charger appears under a different brand name in other apps but not in the Allego app
• Newly installed charger not yet listed

How to Fix It

1. 1

   Check if the charger is operated under a different brand

   Allego operates under various local labels in different countries. The charger might be listed under the local brand name rather than 'Allego' in some apps. Look for a sticker or sign on the charger that shows the operator name and EVSE ID.

2. 2

   Search by charger ID instead of location

   In the Allego app, try the search function and enter the charger's EVSE ID (printed on the unit, usually starting with a country code like DE*, NL*, or FR*). This can find chargers that are not correctly placed on the map.

3. 3

   Use the QR code on the charger

   Scan the QR code on the charger with your phone camera. This will open a direct link to start a session, even if the charger is missing from the app map.

4. 4

   Try a different charging app

   Allego chargers are accessible through many roaming providers. Open an app like Chargemap, Shell Recharge, or Plugsurfing and search for the same location. You may be able to start the session there.

Third-party RFID card not accepted

You hold your RFID card from another provider against the reader and the charger beeps but rejects it, or nothing happens at all.

Symptoms

• Charger beeps once but displays 'Card not recognized'
• No reaction when holding the RFID card to the reader
• Card works at other networks but not at this Allego charger
• 'Authorization failed' message on the charger screen

How to Fix It

1. 1

   Check if your roaming provider covers Allego

   Not all RFID providers have roaming agreements with Allego. Check your provider's app or website to confirm Allego is listed in their coverage. Some providers cover only certain Allego locations.

2. 2

   Hold the card flat and steady for 3 seconds

   Do not wave or tap the card. Place it flat against the reader and hold it still. Allego readers can be slower to respond than some other networks.

3. 3

   Try a different position on the reader

   The RFID antenna inside the reader has a specific sweet spot. Move your card slowly across the reader surface until you get a response. On some Allego chargers, the reader is on the right side panel rather than the front.

4. 4

   Check your RFID card is activated

   Some providers require you to activate your RFID card in their app before first use. Open your provider's app and look for card activation or card management settings.

5. 5

   Fall back to QR code or Allego app

   If your RFID card will not work, scan the QR code on the charger for direct credit card payment, or download the Allego app and register to start the session digitally.

Long delay before charging actually starts

You have authenticated and the charger says it is starting, but 30 seconds, sometimes over a minute, passes before any power flows to your car.

Symptoms

• Charger screen says 'Starting' or 'Initializing' for over 30 seconds
• Car shows 'Waiting for charger' or 'Preparing'
• Power reading stays at 0 kW for a full minute after authentication
• You wonder if you should unplug and try again

How to Fix It

1. 1

   Wait at least 90 seconds before taking action

   Allego high-power chargers perform a communication handshake with your car before delivering power. This includes safety checks, voltage negotiation, and isolation testing. A 30-60 second delay is normal, especially on 350 kW units.

2. 2

   Do not unplug during the initialization phase

   Unplugging and re-plugging resets the entire handshake process. If the charger screen shows any progress (status messages, icons changing), let it complete.

3. 3

   Check if your car's charge port is locked

   The connector should be locked into your car's charge port during initialization. If you can wiggle the connector freely, it may not be fully inserted. Push it in firmly and listen for the lock click.

4. 4

   If nothing happens after 2 minutes, restart the session

   Unplug the connector, wait 10 seconds, plug it back in, and authenticate again. If the delay repeats, try a different connector or charger at the same station.

Charging power much lower than advertised

The charger is rated for 350 kW, but your car is only pulling 50 kW or less. The session is working, just far slower than expected.

Symptoms

• Car or charger display shows 40-80 kW on a 350 kW charger
• Estimated charge time is much longer than expected
• Power started high but dropped dramatically within minutes
• Other cars at the same station seem to charge faster

How to Fix It

1. 1

   Check your battery level

   DC charging slows significantly above 60-70% state of charge on most cars. If your battery is already at 65% or higher, the reduced speed is your car protecting its battery, not a charger problem.

2. 2

   Check your car's maximum DC charging rate

   A 350 kW charger can deliver up to 350 kW, but your car decides how much to accept. Many EVs top out at 100-150 kW. Check your car's specifications for its maximum DC charging speed.

3. 3

   Consider battery temperature

   Cold batteries charge slowly. If you have been parked for hours in cold weather without preconditioning, your car may limit charging to 30-60 kW until the battery warms up. Some cars let you precondition the battery by setting the charger as your navigation destination.

4. 4

   Check if the station is power-sharing

   Some Allego stations share power between multiple chargers. If three cars are charging simultaneously, each one may get less than the maximum. This is normal at shared-power sites.

5. 5

   Try a different connector at the same station

   Occasionally one connector delivers less power due to a hardware limitation. If you are getting unusually low power even at a low battery level, unplug and try the next unit.