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This guide is for general information only. EVcourse is not affiliated with Mercedes-Benz or K-Lataus. Charging speeds and compatibility vary by station, vehicle variant, and conditions. When in doubt, contact Mercedes-Benz or K-Lataus support.

Troubleshooting

Mercedes-Benz EQB Charging at K-Lataus

Updated March 2026

The Mercedes-Benz EQB is compatible with K-Lataus chargers. Here is what you need to know about charging speed, connector fit, and how to handle common problems.

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Compatibility Overview

Approximate values. Actual speeds depend on temperature, battery state, and station load.

Connector match
Compatible
Car connector
CCS2
Network connectors
CCS2
Max charging speed
102 kW
10-80% estimate
35 min
Payment
app, RFID

Why Your Charging Speed May Differ

The Mercedes-Benz EQB supports up to 102 kW DC charging. K-Lataus chargers deliver up to 200 kW. Your car's maximum intake is the limiting factor here, capping speed at 102 kW even on a faster charger.

  • Charging slows down above 80% state of charge on most EVs, including the Mercedes-Benz EQB.
  • Cold weather reduces charging speed. The Mercedes-Benz EQB supports battery preconditioning, which helps.
  • If multiple cars share the same K-Lataus station, power may be split between stalls.

Mercedes-Benz EQB Charging Problems

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.

Common K-Lataus Issues

Session fails to start or charger shows an error

The charger does not begin charging after you plug in and authenticate. This can happen due to communication issues between your vehicle and the charger, or a problem with authentication.

Symptoms

  • You plug in and authenticate but the charger displays an error
  • The charger screen stays on the welcome screen and does not proceed
  • The app shows 'session starting' but nothing happens at the charger
  • The connector locks but no power flows

How to Fix It

  1. 1

    Unplug, wait 30 seconds, and try again

    The initial communication handshake between your vehicle and the charger sometimes fails. Unplug the connector, wait at least 30 seconds, and reconnect. The second attempt often works.

  2. 2

    Try starting the session from the K-Lataus app

    If RFID authentication is not working, open the K-Lataus app, select the station and charger, and start the session through the app instead.

  3. 3

    Try a different charger unit at the same station

    If the station has multiple charger units, switch to another one. One unit may have a hardware issue while the others work fine.

  4. 4

    Check that your vehicle is ready to charge

    Make sure your vehicle is not in a state that prevents charging, such as a charging schedule being active, the charge port not fully engaged, or a vehicle-side error. Check your vehicle's dashboard for any warnings.

Setting up the K-Lataus app for the first time

K-Lataus has its own dedicated app. First-time setup requires a K-Group account and a payment method linked specifically to the K-Lataus service.

Symptoms

  • You are not sure which app to use for K-Lataus charging
  • Your K-Group login works on the K-Group website but not in the K-Lataus app
  • You cannot find a way to add a payment method for charging
  • You cannot find the K-Lataus app in your app store

How to Fix It

  1. 1

    Install the K-Lataus app

    Search for 'K-Lataus' in the App Store or Google Play and install it. This is the dedicated app for K-Lataus EV charging. K-Ruoka is for groceries, not for charging.

  2. 2

    Log in with your K-Group credentials

    Use the same K-Group username and password you use for other K-Group services. If you do not have a K-Group account yet, you can create one in the app.

  3. 3

    Add a payment method in the K-Lataus app

    Go to payment settings in the K-Lataus app and add a credit or debit card. The K-Lataus app manages its own payment methods separately from other K-Group services.

  4. 4

    Find a station and start your first session

    Use the map in the K-Lataus app to find a nearby station. Plug in your vehicle, then tap Start in the app or use an RFID card to begin charging.

Parking time limits at grocery store locations

K-Lataus chargers sit in K-Citymarket and K-Market parking lots, which often have monitored parking with time limits. You may get a parking notice if you stay too long.

Symptoms

  • You see parking time limit signs (e.g. 2 or 3 hours) in the parking lot
  • You received a parking notice even though you were charging
  • Your charging session takes longer than the allowed parking time
  • Camera-monitored parking is active in the lot

How to Fix It

  1. 1

    Check the parking rules when you arrive

    Most K-Citymarket and K-Market parking lots have posted time limits, often 2 to 4 hours, enforced by camera monitoring or a parking operator. These rules apply to EV charging spots too.

  2. 2

    Use a parking disc if required

    Many Finnish parking lots still require a parking disc (pysäköintikiekko). Set the arrival time and display it on your dashboard, even if the lot also has camera monitoring.

  3. 3

    Set a phone timer to move your car

    If you are shopping while charging, set an alarm so you can return before the parking limit expires. A DC fast charger at 200 kW should get you a substantial charge well within a 2-hour window.

  4. 4

    Unplug when charging is complete

    Do not leave your vehicle occupying the charging spot after it finishes. Other EV drivers need the spot, and some parking operators treat finished-but-still-connected vehicles as overstaying.

New stations not appearing in third-party apps

K-Lataus is expanding its network, but newer stations sometimes take weeks to appear in third-party apps and aggregators like PlugShare or Google Maps.

Symptoms

  • The K-Lataus app shows a station that does not appear in PlugShare or ABRP
  • You planned a route using a third-party app and it skipped a nearby K-Lataus station
  • A station listed as 'coming soon' in the K-Lataus app is actually already operational
  • Google Maps does not show K-Lataus chargers at a location where you know they exist

How to Fix It

  1. 1

    Use the K-Lataus app as the primary source for station locations

    The K-Lataus app is always the most up-to-date source for K-Lataus stations. Third-party apps rely on data feeds that may lag behind actual station openings by days or weeks.

  2. 2

    Cross-check with the K-Lataus website

    The K-Lataus website also maintains a station map. Check it if the app is not giving you the information you need or if you want to plan ahead on a larger screen.

  3. 3

    Report missing stations to third-party apps

    If you use PlugShare or ABRP regularly, you can add missing stations yourself. This helps other EV drivers find K-Lataus locations that are not yet in the database.

  4. 4

    For route planning, combine K-Lataus with other network apps

    When planning a longer trip, check the K-Lataus app alongside ABRP or a similar route planner. The K-Lataus app shows the latest stations, while the route planner optimizes your overall charging stops across all networks.

Slow charging or failed sessions at older units in winter

Some older K-Lataus charger units perform less reliably in extreme cold. Winter in Finland brings temperatures that can affect both the charger hardware and your vehicle's battery.

Symptoms

  • The charger takes a long time to initialize in freezing conditions
  • Session fails with a generic error after a long handshake attempt
  • Charging speed is much lower than expected at a 200 kW station
  • The charger screen is slow to respond or displays incorrectly in cold weather

How to Fix It

  1. 1

    Precondition your battery before arriving

    If your vehicle has a battery preconditioning feature (most newer EVs do), activate it before arriving at the charger. A warm battery accepts power faster and communicates more reliably with the charger during the initial handshake.

  2. 2

    Try unplugging and reconnecting

    In cold weather, the initial handshake between your vehicle and the charger can time out. Unplug, wait 30 seconds, and try again. Sometimes the second attempt connects cleanly.

  3. 3

    Try a different charger unit at the same station

    If the station has multiple charger units, one may be more reliable than the other. Older units can have more cold-weather issues than newer installations.

  4. 4

    Report consistently problematic chargers

    If a specific charger unit fails repeatedly in cold weather, report it through the K-Lataus app. This helps K-Group identify hardware that needs maintenance or replacement.

  5. 5

    Accept that cold weather reduces charging speed

    Even when everything works perfectly, a cold battery charges slower. This is a physics limitation, not a charger fault. The first 10 to 15 minutes of a session may be slower until the battery warms up from the charging current itself.

K-Lataus App Tips

  • Install the K-Lataus app separately from K-Ruoka. They share your K-Group login but serve different purposes. K-Lataus is specifically for EV charging.
  • The K-Lataus app shows real-time charger status. Check availability before driving to a station, especially at popular K-Citymarket locations.
  • New K-Lataus stations appear in the K-Lataus app first, often weeks before they show up in third-party apps. Use it as your primary source when planning stops at K-Group locations.
  • Your charging history in the K-Lataus app shows energy delivered, duration, and cost per session. Use it to track your charging patterns and costs over time.
  • Make sure your K-Lataus app is updated regularly. K-Group adds new stations and features, and an outdated app may miss the latest additions.

Payment Tips

  • The K-Lataus app is the most reliable payment method. Open the app, select the charger, and tap start.
  • You can also use a compatible RFID card. Check the K-Lataus app or website for supported RFID options.
  • K-Lataus pricing is per kWh. The app displays the current rate before you start each session. No surprise charges.
  • Make sure you have a payment method saved in the K-Lataus app before you arrive at the charger.

Frequently Asked Questions

Can the Mercedes-Benz EQB charge at K-Lataus?
Yes. The Mercedes-Benz EQB uses a CCS2 connector, which is supported by K-Lataus chargers. Maximum charging speed will be up to 102 kW.
How long does it take to charge a Mercedes-Benz EQB at K-Lataus?
Charging a Mercedes-Benz EQB from 10% to 80% at K-Lataus takes approximately 35 minutes at up to 102 kW. Actual times vary depending on temperature, battery condition, and station load.
How do you pay at K-Lataus?
K-Lataus accepts app, RFID. Check the K-Lataus app or website for current pricing and subscription options.

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