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Troubleshooting

Volvo EX40 Charging Troubleshooting

Updated March 2026

Volvo EX40 Charging Specs

Approximate values. Check your own vehicle specs, as they vary by variant, model year, and market.

Battery (useable): 79 kWh
Max DC charging: 200 kW
Max AC charging: 11 kW
10-80% DC time: 28 min
DC connector: CCS2
WLTP range: 573 km
Heat pump: standard
Architecture: 400V

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.

Quick Diagnosis

Step 1

Is the charger screen on and showing a ready state?

Check if the charger display is lit and showing "Available" or a similar ready message.

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

Why This Happens

Authentication not completed

Most public chargers require you to start the session with an RFID card, app, or contactless payment before or after plugging in. If you skip this step, the charger will not deliver power. Plug & Charge works on supported networks but is not universal.

Charge port door not fully open

The EX40's charge port is on the left rear. If the port door is not fully open or the flap is obstructed, the connector may not seat properly and the car will not recognize it.

Scheduled charging is active

If you have set a charging schedule in the EX40 (for example, to charge only at night for lower electricity rates), the car will not start charging outside those hours, even at a public charger.

Charger is out of service

The charger may look fine but have an internal fault. Check the charger's screen for error messages. Many charging apps show real-time status, so check before you plug in.

Cable not fully seated

The CCS connector must click firmly into the EX40's charge port. If the connector is not pushed in all the way, the car will not detect it and charging will not begin.

What to Do

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

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

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

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

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

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.

Prevention Tips

Check charger availability and status in the charging network's app before driving to a station
Disable scheduled charging when using public chargers away from home
Keep the charge port clean and free of ice or debris, especially in winter
Set up Plug & Charge through the Volvo Cars app for supported networks to simplify authentication
Carry an RFID charging card as a backup in case app-based authentication fails

Volvo EX40 Charging Stops Before the Battery Is Full

Your Volvo EX40 was charging fine, then the session ended before the battery was full. The screen says charging complete at 80%, or the charger just stopped mid-session. This is frustrating but usually has a clear cause, whether it is the charge limit setting, a charger timeout, or a communication drop between the car and charger.

Quick Diagnosis

Step 1

Did the charger show an error code?

Check the charger screen for any error message or code.

Symptoms

Charging stops at 80% even though you wanted a full charge
Charger disconnects mid-session and displays an error
Center display shows charging stopped but the battery is not full
Charging session ends after 30-60 minutes at a public charger
Charge port LED turns off while the cable is still connected

Why This Happens

Charge limit set to 80%

The EX40 has a configurable charge limit, and many drivers set it to 80% for daily use. If you need a full charge for a longer trip, you need to raise this limit in the car's settings before plugging in.

Charger session timeout

Some public chargers have a maximum session duration, typically 60 minutes for DC fast chargers. When the timer expires, the charger ends the session regardless of your battery level.

Communication error between car and charger

DC fast charging requires constant communication between the EX40 and the charger. If this communication drops, even briefly, the charger will stop the session as a safety measure.

Battery temperature too high

If the 79 kWh battery overheats during a long fast charging session, the EX40 may reduce power to near zero or stop charging entirely to protect the cells.

Grid power interruption

A brief power fluctuation at the charging station can end the session. This is more common at older or heavily loaded stations.

What to Do

1

Check your charge limit setting

On the center display, go to Settings, then Charging. If the charge limit is set to 80%, raise it to 100% if you need a full charge. Remember to set it back to 80% for daily driving.
2

Check the charger for session limits

Look at the charger's screen or the charging app for any time limits. Some chargers stop after 60 minutes or charge idle fees if you stay connected after charging completes.
3

Restart the charging session

Unplug the connector, wait 15 seconds, and plug in again. Re-authenticate if needed. A fresh session often resolves communication errors.
4

Let the battery cool down if needed

If you have been driving hard or fast charging multiple times in a row, the battery may be too warm. Wait 10-15 minutes before starting a new session.
5

Try a different charger

If the same charger keeps stopping your session, the issue is likely with the charger, not your EX40. Try a different stall or a different station.

Prevention Tips

Check and adjust your charge limit before starting a long trip so you do not stop at 80% when you need more
Precondition the battery using the Volvo Cars app before fast charging to keep the battery at optimal temperature
Avoid back-to-back DC fast charging sessions without a break to prevent overheating
Use the Volvo Cars app or Google Maps to route to chargers with no session time limits
Keep the car's software updated through the Volvo Cars app for the latest charging improvements

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.

Quick Diagnosis

Step 1

Are you using the network's own app?

Using the charging network's own app is usually the cheapest and most reliable option.

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

Why This Happens

Card pre-authorization hold

Many chargers place a hold of 50-100 EUR on your card before charging begins. If your card does not have enough available balance or your bank blocks unexpected holds, the payment will fail.

Charging app not set up correctly

If you are using a charging network's app, your payment method may not be verified, the app may need an update, or your account balance may be too low for prepaid networks.

Plug & Charge not configured

The EX40 supports Plug & Charge, but it must be set up through the Volvo Cars app and only works on supported networks. If you have not enabled it or the network does not support it, you need to pay another way.

Contactless reader malfunction

The contactless payment terminal on the charger may be broken, dirty, or frozen in cold weather. This is a charger issue, not a card problem.

Foreign card or cross-border issue

Some charging networks only accept local payment methods or specific card types. If you are traveling in a different country, your usual card or app may not work at every charger.

What to Do

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

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

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

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

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.

Prevention Tips

Set up Plug & Charge in the Volvo Cars app for your preferred charging networks
Carry at least two payment methods: an RFID card and a bank card or phone wallet
Make sure your charging app accounts are funded and payment methods are verified before a trip
Notify your bank before traveling abroad so they do not block charging pre-authorization holds
Download apps for the charging networks along your route before you leave, not at the charger

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.

Quick Diagnosis

Step 1

Is your battery above 80%?

Charging slows down significantly above 80% to protect battery health. This is normal.

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

Why This Happens

Battery too cold or too hot

The EX40's 79 kWh battery limits charging speed when temperature is below 15C or above 40C. In cold weather, this is the most common reason for slow DC charging. The heat pump helps cabin heating but does not directly warm the battery for charging.

Preconditioning not activated

The EX40 supports battery preconditioning through the Volvo Cars app and navigation. If you did not set a charger as your destination or precondition manually, the battery may be too cold when you arrive at the charger.

State of charge above 80%

The EX40 uses a 400V architecture with a standard charging curve. Above 80%, DC power drops significantly, sometimes below 15 kW. This is normal battery protection, not a fault.

AC charger wired for single-phase

The EX40 supports 3-phase AC charging at 11 kW. If your wallbox is wired single-phase, you will get around 3.7 kW maximum. This is a common installation issue, not a car problem.

Charger power shared between stalls

Many DC fast chargers share their total power between two connectors. If someone is charging at the adjacent stall, both cars receive reduced power. Check if the charger unit has two cables.

What to Do

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

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

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

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

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

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.

Prevention Tips

Always set the charger as your navigation destination so preconditioning starts automatically during the drive
Plan charging stops to arrive between 10-20% for maximum DC charging speed
Avoid charging above 80% on road trips unless you need the extra range for the next leg
Confirm your home wallbox is wired for 3-phase AC to get the full 11 kW
Keep the charge current limiter at maximum unless your electrician recommends a lower setting

Volvo EX40 Wrong Charging Connector or Plug Will Not Fit

You arrived at a charger and the connector does not fit your Volvo EX40, or you are not sure which plug to use. The EX40 uses a CCS2 (Combo 2) port on the left rear, which handles both DC fast charging and AC charging through the same port. Here is how to pick the right connector every time.

Quick Diagnosis

Step 1

Do you need fast charging (DC)?

DC fast charging is for quick top-ups during trips (usually 20-40 minutes). For overnight or workplace charging, AC is fine.

Symptoms

Connector physically does not fit into the EX40's charge port
Charger has multiple cables and you are unsure which one to use
Connector plugs in but charging does not start
The charger only has a CHAdeMO or Type 1 connector
You found a Tesla Supercharger and wonder if it works with the EX40

Why This Happens

Using a CHAdeMO connector

CHAdeMO is a different DC fast charging standard used by some older Japanese EVs. It will not fit the EX40's CCS2 port. No adapter exists for CHAdeMO to CCS2.

Using a Type 1 (J1772) connector

Type 1 is the older single-phase AC connector used mainly in North America and older installations. The EX40 uses Type 2 for AC charging, which is part of the CCS2 port.

Trying a Tesla-specific Supercharger

Some older Tesla Superchargers use a proprietary connector that will not fit the EX40. Newer Tesla Superchargers in Europe use CCS2 and work with the EX40 if access is enabled for non-Tesla vehicles.

Connector orientation is wrong

The CCS2 connector has a specific orientation with the DC pins at the bottom. If you are trying to insert it upside down or at an angle, it will not fit. Line up the connector straight with the port.

Charge port has ice or debris

In cold weather, ice can form inside the charge port or around the cover. This prevents the connector from seating properly. The port is on the left rear fender, exposed to road spray.

What to Do

1

Identify the connector you need

The Volvo EX40 uses CCS2 (Combo 2) for DC fast charging and Type 2 for AC charging. Both fit the same port on the left rear. Look for the CCS or Type 2 label on the charger's cables.
2

Choose the right cable at the charger

If the charger has multiple cables, pick the one labeled CCS or CCS2 for fast charging. For AC charging (slower, typically at destinations), use the Type 2 cable. Ignore CHAdeMO cables.
3

Align the connector correctly

Hold the CCS2 connector with the larger DC pins at the bottom. Insert it straight into the port on the left rear of the EX40. Push firmly until you hear a click.
4

Clear ice or debris from the port

If the connector will not seat in cold weather, check for ice inside the port. Use your hand or a soft cloth to clear it. Do not use sharp tools that could damage the pins.
5

Find a compatible charger nearby

If the station only has CHAdeMO or incompatible connectors, use the Volvo Cars app, Google Maps, or a charging app to find a nearby station with CCS2 connectors.

Prevention Tips

Remember that your EX40 uses CCS2 for fast charging and Type 2 for AC, both in the same port on the left rear
Filter for CCS connectors when searching for chargers in apps or Google Maps
Check Tesla Supercharger availability for non-Tesla vehicles before relying on them for a trip
Keep the charge port cover closed when not charging to prevent ice and debris buildup
If traveling to a new region, check which connector standards are common there

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