Volvo EX40 Charging at Mer

Volvo EX40 Plugged In but the Charger Will Not Start

You plugged the cable into your Volvo EX40 and nothing happens. No charging animation on the center screen, no LED on the charger, or the charger shows an error. This is one of the most common frustrations at public chargers and is usually caused by authentication, the charge port, or the charger itself.

Symptoms

• Charger displays an error code or flashing red light after plugging in
• Charge port LED on the EX40 does not turn on or stays amber
• Google Built-In display shows no active charging session
• Charger screen says 'waiting for vehicle' or 'authentication failed'
• Cable is plugged in but the connector does not lock into the charge port

What to Do

1. 1

   Check if authentication is required

   Look at the charger's screen. Most public chargers need you to tap an RFID card, scan a QR code, or start the session through an app before charging begins. Plug & Charge works on some networks but not all.

2. 2

   Open the charge port fully

   Make sure the charge port door on the left rear of your EX40 is fully open. Press the edge of the door to release it if it is stuck. Clear any ice or debris in cold weather.

3. 3

   Push the connector in firmly

   Insert the CCS connector straight into the port and push until you hear a click. The connector should lock in place. If it will not lock, do not force it. Check for debris in the port.

4. 4

   Disable scheduled charging

   On the center display, go to Settings, then Charging. Check if a charging schedule is active. Turn it off or set it to 'charge immediately' to start charging at a public charger.

5. 5

   Unplug and try again

   Disconnect the cable, wait 10 seconds, and plug in again. Sometimes the communication handshake between car and charger fails on the first attempt and a retry resolves it.

6. 6

   Try a different charger or connector

   If the charger still will not start, move to a different stall or station. The charger may have an internal fault even if no error is displayed.

Volvo EX40 Charger Payment Failed or Card Declined

You are standing at a charger with your Volvo EX40, ready to charge, and the payment does not go through. Your card is declined, the app shows an error, or you cannot figure out how to pay at all. Payment problems at public chargers are one of the most common frustrations and usually have nothing to do with your car.

Symptoms

• Charger screen shows 'payment failed' or 'card declined'
• Charging app shows an error when trying to start a session
• No visible way to pay at the charger
• Contactless payment terminal does not respond to your card or phone
• Plug & Charge does not activate and the charger waits for payment

What to Do

1. 1

   Check if Plug & Charge is active

   Open the Volvo Cars app and check if Plug & Charge is enabled and linked to a payment method. If it is active, try unplugging and replugging the connector. Plug & Charge works only on supported networks.

2. 2

   Try a different payment method

   If your card was declined, try a different card, your phone's mobile wallet, or the charger network's app. Many chargers accept multiple payment options.

3. 3

   Check your card for pre-authorization holds

   Open your banking app and check for pending charges. If there are multiple holds from earlier charging attempts, your available balance may be too low. Call your bank to release them if needed.

4. 4

   Download the charger network's app

   Look at the charger for the network name or logo. Download their app, create an account, add a payment method, and start the session through the app instead of the charger's payment terminal.

5. 5

   Use an RFID charging card

   If you have an RFID card from a charging provider, tap it on the charger's reader. RFID cards work even when apps and contactless terminals fail. They are a reliable backup.

Volvo EX40 Charging Slower Than Expected at DC or AC

You plugged in your Volvo EX40 expecting 150 kW and the center screen shows 30 kW. Or your home wallbox is stuck at 3 kW instead of 11 kW. Slow charging on the EX40 is almost never a defect. It is usually the battery temperature, the charger itself, or a setting in the Volvo Cars app you can fix quickly.

Symptoms

• DC fast charging speed well below the 150 kW maximum
• AC home charging stuck at 3-4 kW instead of 11 kW
• Charging speed drops sharply after reaching 50-60%
• Google Built-In display shows lower power than the charger's rating
• Charging session starts at a reasonable speed but slows within minutes

What to Do

1. 1

   Check the battery temperature on the display

   Look at the charging screen on the EX40's center display (Google Built-In). If the battery is cold, drive for 15-20 minutes before charging or use the Volvo Cars app to start preconditioning before you arrive.

2. 2

   Use navigation to precondition the battery

   Set the charger as your destination in Google Maps on the center screen. The EX40 will automatically precondition the battery during the drive so it reaches optimal temperature for fast charging.

3. 3

   Check your state of charge

   If you are above 80%, the slower speed is normal. For fastest DC charging, arrive between 10-20% and charge to 80%. The last 20% takes as long as the first 80%.

4. 4

   Verify the charger is not sharing power

   Look at the charging unit. If there are two cables and someone is using the other one, you are likely sharing power. Move to a charger where both stalls are free.

5. 5

   Check the AC charge current setting

   In the EX40's settings menu, check that the charge current limiter is set to maximum. A reduced setting limits AC charging speed and is sometimes changed accidentally.

6. 6

   Try a different charger

   If the speed is still low, the charger itself may be degraded. Try a different connector at the same station, or drive to another charging location.

Station occupancy not updating in the app

The Mer app shows a station as available, but when you arrive, all connectors are occupied or out of service. The real-time status in the app can lag behind by several minutes.

Symptoms

• App shows "Available" but all connectors are in use when you arrive
• App shows a station as occupied but the chargers are visibly free
• Connector status flickers between available and occupied in the app
• Recently freed connectors still show as "In use" in the app for several minutes

How to Fix It

1. 1

   Pull to refresh the station detail in the Mer app

   On the station page, pull down to force a status refresh. The app does not always update automatically, and a manual refresh often shows the correct status.

2. 2

   Close and reopen the app

   Force-close the Mer app and reopen it. This clears any cached station data and pulls a fresh status from the server.

3. 3

   Check a third-party app for a second opinion

   Apps like Plugsurfing, A Better Route Planner, or Google Maps sometimes pull fresher data from Mer's backend. Use one of these to verify availability if the Mer app seems wrong.

4. 4

   Drive to the station if it is nearby

   If the station is less than five minutes away, it is often faster to just go and check. Occupancy can change in the time it takes to troubleshoot the app.

Third-party RFID card rejected

You are trying to authenticate with an RFID card from a roaming provider like Plugsurfing, NewMotion, or Virta, but the Mer charger rejects it. Not all third-party RFID cards are accepted at every Mer station.

Symptoms

• Charger screen shows "Card not recognized" after tapping
• The charger beeps once but nothing happens
• Your RFID card works at other networks but fails at Mer
• The charger prompts you to try again but repeated taps do not help

How to Fix It

1. 1

   Hold the card flat against the reader for three full seconds

   Do not tap and remove quickly. Some Mer readers need a longer hold to register the card. Keep it pressed flat against the RFID symbol.

2. 2

   Check if your roaming provider covers Mer stations

   Open your roaming provider's app and search for this specific Mer station. Some providers have roaming agreements with Mer but not for every station type or region.

3. 3

   Use the Mer app instead

   Download the Mer app if you do not have it. Create an account and add a payment method. You can start the session through the app even if your RFID card does not work.

4. 4

   Try contactless bank card payment

   Newer Mer stations have a contactless payment terminal. Look for a card reader with the contactless payment symbol. Tap your bank card or phone to start.

5. 5

   Try a Mer-issued RFID card for future visits

   You can order an RFID card directly from Mer through their app or website. Mer's own cards are accepted at all Mer stations without roaming issues.

Charger screen showing error but no error code

The charger screen displays a generic error message like "Error" or "Fault" without any specific code or explanation. This makes it hard to know if the problem is temporary or if the unit is broken.

Symptoms

• Charger screen shows "Error" or a red warning icon with no further detail
• The error appears before you even try to authenticate
• The error appears after plugging in but before power delivery starts
• Screen alternates between the normal start screen and the error message

How to Fix It

1. 1

   Unplug the connector and wait 30 seconds

   Some Mer chargers show transient errors after a previous session ended abnormally. Unplugging and waiting gives the charger time to reset its internal state.

2. 2

   Try the other connector on the same unit

   If the station has a second CCS2 connector, try that one. A hardware fault on one connector does not always affect the other.

3. 3

   Check if other cars are successfully charging at the station

   If nobody at the station is charging, the entire station may be down. If others are charging fine, the issue is limited to your connector.

4. 4

   Report the faulty unit in the Mer app

   Open the Mer app, find the station, and report the issue. Include which connector number has the error. This helps Mer send a technician and warns other drivers.

5. 5

   Move to a different station

   A charger with a persistent generic error is unlikely to start working on its own. Use the Mer app to find the nearest alternative station.

Cable locked and will not release in cold weather

You finished charging but the CCS2 cable will not unlock from your car. In Nordic winters, ice can form around the connector locking mechanism, making it physically difficult to release.

Symptoms

• Pressing the connector release button does not unlock the cable
• The connector feels frozen in place
• Your car shows "Charging complete" but the cable is stuck
• The locking pin on the connector is visibly iced over

How to Fix It

1. 1

   Make sure the charging session has fully ended

   The cable stays locked while a session is active. Stop the session in the Mer app or on the charger screen, then try releasing the connector again. Wait 10 seconds after the session ends.

2. 2

   Try unlocking from your car

   Most EVs have a cable release option in the infotainment system or a button near the charge port. Use your car's unlock function rather than the connector button.

3. 3

   Warm the connector gently

   If ice is the problem, pour lukewarm water (not boiling) over the connector and charge port area. You can also cup your hands around the connector to warm it with body heat. Do not use force or tools to pry it free.

4. 4

   Run the car's cabin heater for a few minutes

   Turning on the car's climate system can gradually warm the charge port area from the inside. This works slowly but can free a mildly frozen connector after 5-10 minutes.

5. 5

   Call Mer support if the cable is truly stuck

   If nothing works after 15 minutes, call the support number on the charger. Mer can remotely release the cable lock on their end. Do not pull with excessive force as this can damage both the connector and your car's charge port.

App requires location services for remote start

The Mer app asks you to enable location services before you can start a charging session, even when you are standing right next to the charger and selected it manually from the map.

Symptoms

• App shows "Enable location services to start charging" popup
• Start button is grayed out until location permission is granted
• The app worked fine before but now demands location after an update
• You can browse the map but cannot start a session without GPS enabled

How to Fix It

1. 1

   Enable location services temporarily

   Go to your phone's settings, find the Mer app, and set location access to "While Using the App." You can change it back after your session.

2. 2

   Make sure GPS has a fix

   In underground parking garages or areas with poor GPS reception, the app may not be able to confirm your location. Step outside or move closer to an open area until the app detects your position.

3. 3

   Use RFID or contactless payment instead

   If you do not want to share your location, use your RFID card or a contactless bank card to start the session. These methods do not require the app at all.

4. 4

   Scan the QR code on the charger

   Some Mer chargers have a QR code that opens the start process in a browser, bypassing the app's location requirement.

Former Grønn Kontakt station not found in Mer app

Mer acquired Grønn Kontakt in Norway, but some older stations may not appear correctly in the Mer app, especially during the transition period.

Symptoms

• Station visible on the street but not on the Mer app map
• Searching by the old Grønn Kontakt name returns no results
• QR code on the charger links to a Grønn Kontakt page that no longer works
• RFID card from Grønn Kontakt account rejected

How to Fix It

1. 1

   Update the Mer app to the latest version

   Older versions of the app may not include recently migrated Grønn Kontakt stations. Update from the App Store or Google Play.

2. 2

   Search by the station's physical address

   Instead of searching by station name, try the street address or zoom into the location on the app map. The station may appear under a new Mer name.

3. 3

   Enter the charger ID manually

   Look for a station or connector ID printed on the charger hardware. Enter this ID in the Mer app's manual start option.

4. 4

   Use contactless payment to bypass the app

   If the station has a payment terminal, tap your bank card to start. This works independently of whether the app has the station listed.