Skip to main content

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

Troubleshooting

Renault 5 E-Tech Charging at Mer

Updated March 2026

The Renault 5 E-Tech is compatible with Mer chargers. Here is what you need to know about charging speed, connector fit, and how to handle common problems.

Share

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
101 kW
10-80% estimate
31 min
Payment
app, RFID, contactless

Why Your Charging Speed May Differ

The Renault 5 E-Tech supports up to 101 kW DC charging. Mer chargers deliver up to 300 kW. Your car's maximum intake is the limiting factor here, capping speed at 101 kW even on a faster charger.

  • Charging slows down above 80% state of charge on most EVs, including the Renault 5 E-Tech.
  • Cold weather reduces charging speed. The Renault 5 E-Tech supports battery preconditioning, which helps.
  • If multiple cars share the same Mer station, power may be split between stalls.

Renault 5 E-Tech Charging Problems

Renault 5 E-Tech Charger Will Not Start a Session

You are at the charger, the connector is in your Renault 5, but nothing happens. The screen stays idle, or you get an error message and the session never begins. This is one of the most common frustrations at public chargers, and it is almost always fixable on the spot.

Symptoms

  • Charger screen stays on the welcome page after plugging in
  • Charger shows an error code and returns to the start screen
  • Charge port light on the Renault 5 does not illuminate or flashes red
  • Connector clicks in but the car does not acknowledge the connection
  • Charger displays 'Vehicle not detected' or 'Communication error'

What to Do

  1. 1

    Reinsert the connector firmly

    Remove the connector from the Renault 5, check for debris or moisture in the charge port, and push the connector back in straight and firm until you hear a click. The charge port indicator should light up.

  2. 2

    Open the charge port flap completely

    Make sure the fuel cap-style flap at the right rear is fully open and not obstructing the connector. If it is stuck in cold weather, gently push it or use warm water to clear ice. Do not force it.

  3. 3

    Check that the car is ready to charge

    Verify the Renault 5 is in Park. On the OpenR Link screen, check the charging settings for any scheduled charging that might block immediate charging. Disable the schedule if you need to charge now.

  4. 4

    Authenticate with the charger

    Tap your RFID card on the charger's reader, start the session through the operator's app, or use contactless payment. Make sure you select the correct stall number if using an app. Wait for the charger screen to confirm authorization.

  5. 5

    Try a different stall

    If the charger still will not start after reinserting the connector and authenticating, the stall may be faulty. Try a different stall at the same station. If all stalls fail, find the nearest alternative using Google Maps on the OpenR Link screen.

  6. 6

    Lock and unlock the car

    Locking and unlocking the Renault 5 with the key fob or the MY Renault app can reset the charge port communication. After unlocking, open the charge port flap and try plugging in again.

Renault 5 E-Tech Charging Payment Failed at Station

You are at the charger, your Renault 5 is plugged in, but the payment will not go through. The charger says 'Authorization failed' or just does nothing after you tap your card. Payment problems are one of the most common reasons a charge never starts, and you can usually fix them in a minute or two.

Symptoms

  • Charger screen shows 'Authorization failed' or 'Payment declined' after tapping a card
  • Charger app shows an error when trying to start a session
  • Contactless bank card is declined at the charger terminal
  • RFID card tap produces no response from the charger
  • Charger accepts payment but the session ends immediately with zero kWh

What to Do

  1. 1

    Try the charger operator's app

    Look for the operator name on the charger (Ionity, Shell Recharge, Allego, Fastned, etc.). Download their app if you do not have it, add a payment method, and start the session. Double-check that you selected the correct stall number.

  2. 2

    Try a different payment method

    If your RFID card failed, try contactless with your bank card or phone. If contactless failed, try an RFID card or the operator's app. Having at least two options means you are rarely stuck.

  3. 3

    Check your bank card balance

    Open your banking app and confirm you have enough available balance for the pre-authorization hold. Previous charging sessions may have pending holds that temporarily reduce your available funds.

  4. 4

    Check your charging service subscription

    If you use a Mobilize or roaming charging service, open the MY Renault app and verify your subscription is active and the payment method is valid. Renew or update it if needed.

  5. 5

    Reset the charger

    Press the stop or reset button on the charger. Wait for it to return to the welcome screen. Unplug the connector from your Renault 5, wait 30 seconds, plug back in, and try authenticating again.

  6. 6

    Move to a different stall or station

    If nothing works at this stall, try a different one at the same station. Payment terminals fail independently. If the whole station is down, use Google Maps on your OpenR Link screen to find the nearest alternative.

Renault 5 E-Tech Charging Slower Than Expected

You plugged in your Renault 5 E-Tech expecting 100 kW and the screen shows 30 kW. Or your home wallbox is delivering 3 kW instead of 11 kW. The Renault 5 has a smaller 52 kWh battery that charges efficiently when conditions are right, but a few common factors can cut the speed significantly.

Symptoms

  • DC fast charging speed well below the 100 kW maximum
  • AC home charging stuck at 3-4 kW instead of 11 kW
  • Charging speed drops noticeably after 50-60%
  • OpenR Link display shows lower power than the charger's rating
  • Charging takes much longer than the estimated time shown in the MY Renault app

What to Do

  1. 1

    Precondition the battery before arriving

    Use the MY Renault app or the car's climate scheduling to warm the battery before a fast charge. If you are on a road trip, driving for at least 20-30 minutes before stopping warms the battery naturally. Set your charging stop as a navigation destination in OpenR Link to activate automatic preconditioning.

  2. 2

    Check your state of charge

    If you are above 80%, the slower speed is normal. For the fastest charging, arrive at the charger between 10-20% and charge to 80%. This keeps you in the Renault 5's peak charging range.

  3. 3

    Verify the charger's rated power

    Look at the charger unit for its power rating. If it says 50 kW, that is the maximum you will get. For faster charging, look for chargers rated at 100 kW or higher. The MY Renault app and Google Maps (built into OpenR Link) can filter by charger speed.

  4. 4

    Check if the charger is shared

    Look at the charging station. If another car is charging at the next stall on the same unit, your power may be split. Move to an unoccupied unit if one is available.

  5. 5

    Check your home AC setup

    For home charging, verify whether your wallbox is wired for 3-phase. Check the Renault 5's charging settings to confirm the AC charge current is at maximum. A single-phase installation limits you to about 3.7 kW.

Common Mer Issues

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.

Mer App Tips

  • Add a payment method to the Mer app before your first charging session. The app will not let you start a session without a valid payment card on file.
  • Use the filter options in the Mer app to show only stations with available CCS2 connectors. This saves time when you need a fast charger specifically.
  • If the Mer app crashes during a session, your charging will continue. The session runs on the charger, not on your phone. Reopen the app to monitor progress or stop the session.
  • Check the Mer app for pricing before you plug in. Prices vary between stations and can include per-kWh rates, time-based fees, or both. The station detail page shows the current pricing.

Payment Tips

  • Contactless bank card payment is available at newer Mer stations but not all locations. The Mer app shows which payment methods each station supports on the station detail page.
  • Mer accepts Visa and Mastercard through the app. Some prepaid cards and virtual cards may be declined. Use a standard debit or credit card for the most reliable experience.
  • If you charge through a roaming provider like Plugsurfing, check that provider's pricing for Mer stations. Roaming fees can add a significant markup over Mer's direct prices.
  • Mer's app shows your full charging history with costs. If a session was billed incorrectly, you can dispute it through the app's history section.

Frequently Asked Questions

Can the Renault 5 E-Tech charge at Mer?
Yes. The Renault 5 E-Tech uses a CCS2 connector, which is supported by Mer chargers. Maximum charging speed will be up to 101 kW.
How long does it take to charge a Renault 5 E-Tech at Mer?
Charging a Renault 5 E-Tech from 10% to 80% at Mer takes approximately 31 minutes at up to 101 kW. Actual times vary depending on temperature, battery condition, and station load.
How do you pay at Mer?
Mer accepts app, RFID, contactless. Check the Mer app or website for current pricing and subscription options.

Stuck at the charger? Open the app.

Step-by-step help for real charging problems. Log the experience. Free on iOS and Android.

Free to download · Available on iOS and Android