Remove the battery from Nissan Qashqai It seems like a simple task until you encounter unexpected difficulties. In practice, even experienced car owners miss critical details: from a forgotten radio code to reset throttle adaptations. This guide will not only walk you through the process step by step, but will also reveal hidden nuances, which are silent about in standard manuals.

Design Features Qashqai (especially models J11 And J12 with the system Start/Stop) require caution: incorrectly disconnecting the battery can lead to errors in the engine control unit or failure of the climate control. We analyzed the process using the example of gasoline (HR16DE, MR20DD) and diesel (K9K, R9M) versions, indicating the key differences. You will also learn how bypass audio system lock without visiting a dealer - information that is difficult to find in open sources.

Preparing for dismantling: tools and safety precautions

Before you begin, make sure you have on hand:

  • 🔧 A set of socket heads (required) 10 mm for terminals and 13 mm for battery mounting)
  • 🔥 Gloves made of dielectric material (current in the circuit Qashqai can reach 600 A at start-up)
  • 📦 Plastic ties or electrical tape to secure the terminals after removal
  • 🔋 External power supply (optional, to save settings)
  • 📝 Notepad for recording radio codes and on-board computer parameters

Critical: Nissan Qashqai with the system Intelligent Key may block access to some functions after power failure. If your car has keyless system, before removing the battery insert the key into the ignition and turn it to position ACC - this will prevent the immobilizer password from being reset.

⚠️ Attention: On diesel Qashqai (engines K9K/R9M) after disconnecting the battery is required fuel pump retraining. Without this procedure, the engine will run intermittently or not start at all. You will find instructions for retraining in the assembly section.
📊 What engine is installed in your Qashqai?
  • Petrol 1.6 (HR16DE)
  • Petrol 2.0 (MR20DD)
  • Diesel 1.5 (K9K)
  • Diesel 1.6 (R9M)
  • Other

Battery localization: where to look for batteries in different generations

The location of the battery depends on the generation and configuration Qashqai:

Generation Battery installation location Access Features
J10 (2006–2013) Under the hood, on the right in the direction of travel The terminals are covered with a plastic casing. Fastening - standard clamping bar.
J11 (2013–2021) Under the hood, on the right (for LHD) or left (for RHD) On versions with Start/Stop installed AGM battery with status sensor.
J12 (2021–present) Under the hood, on the right (for LHD) Additional fuse box above the battery. Removal of the air duct is required.
J10/J11 diesel Under the hood, but moved closer to the windshield The terminals may be covered with protective caps due to the high risk of oxidation.

On Qashqai J12 with a hybrid installation (e-Power) The 12V battery is located in the trunk under the floor. To access it you will need to remove the trim and move the spare tire. Do not confuse it with a high voltage battery — it is located under the rear seat and marked with an orange warning sign.

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If on your Qashqai system installed Around View Monitor, before removing the battery, write down the current camera settings. After connecting the power, recalibration may be required (the procedure takes up to 10 minutes).

Step-by-step instructions: how to remove the battery without errors

Follow this algorithm to avoid common problems:

  1. Turn off the ignition and remove the key from the lock. Make sure that all consumers (headlights, radio, air conditioning) are turned off.
  2. Remove the negative terminal first - this will prevent a short circuit. On Qashqai J11/J12 the terminal can be screwed with a hexagon socket bolt (Torx T30).
  3. Remove the positive terminal. On diesel versions it is often covered with a red protective cap - don't lose it!
  4. Unscrew the clamping bar (bolts 13 mm). On some models, the bar is attached to the body through rubber bushings - do not tear them.
  5. Remove the batteryby pulling it up. Battery weight per Qashqai is 15–20 kg, so it is better to work with an assistant.

☑️ Check before removing the battery

Done: 0 / 5

On Qashqai J11 with the system Start/Stop After removing the battery, an error may appear P1A0F (battery status sensor circuit malfunction). To avoid this, disconnect the sensor from the terminal to removing the battery. The sensor is located on the negative wire and is secured with a plastic clip.

⚠️ Attention: If on your Qashqai system installed NissanConnect, after disconnecting the battery, you will need to re-activate the services through the mobile application. Without this, remote access functions (for example, starting the engine from a smartphone) will not work.

What to do after removal: resetting errors and adapting systems

After installing a new battery Nissan Qashqai may behave inappropriately: idle speed fluctuates, climate control does not work correctly, or the lamp lights up ESP. This is due to the reset of adaptations in the control unit. Here's how to get everything back to normal:

  • 🔄 Reset throttle adaptation:
    1. Start the engine and warm up to operating temperature.
    2. Turn off the ignition for 10 seconds.
    3. Turn the ignition on (do not start the engine) and wait 3 seconds.
    4. Press and release the gas pedal fully 5 times (within 5 seconds).
    5. Turn off the ignition for 10 seconds.
    6. Start the engine and let it idle for 3-5 minutes.
  • ⚙️ Fuel pump retraining (for diesel engines): 
    1. Включите зажигание (не заводите двигатель) на 30 секунд.

    2. Выключите зажигание на 60 секунд.
    

    3. Повторите шаги 1–2 ещё 2 раза.
    

    4. Заведите двигатель и дайте поработать 10 минут на холостых.

  • 🎵 Unlocking the radio: If the message appears on the screen CODE, enter the 4-digit code from the service book. If there is no code, use generators like Nissan Radio Code Calculator (you will need the serial number of the device, which can be found on a sticker on the side of the radio).
    • How to reset error P1A0F on Qashqai with Start/Stop

    If after replacing the battery the battery status sensor error is on, follow these steps:

    1. Connect a diagnostic scanner (for example, Launch X431 or Delphi).

    2. Go to the block BCM (Body Control Module).

    3. Select a function Relearn Battery Sensor.

    4. Follow the instructions on the screen (usually you need to enter the capacity of the new battery in Ah).

    5. Remove the error P1A0F and reboot the system (disconnect the battery for 1 minute).

    On Qashqai J12 with a digital dashboard, after replacing the battery, the mileage in the trip computer may be reset. To recover data, connect to the unit IPMA (Instrument Panel Meter Assembly) via diagnostic connector and select function Trip Meter Initialization.

    Choosing a new battery: what parameters are critical for Qashqai

    Not all batteries are suitable for Nissan Qashqai, especially when it comes to versions with Start/Stop or diesel engines. Here are the key parameters:

    Parameter Qashqai J10 (petrol) Qashqai J11 (petrol) Qashqai J11/J12 (diesel) Qashqai J12 (Start/Stop)
    Capacity (Ah) 60–65 70–75 80–90 70–80 (AGM)
    Starting current (A) 540–600 600–680 700–800 720–850
    Type Calcium (Ca/Ca) Calcium or EFB EFB or AGM AGM only
    Polarity Reverse (R+) Reverse (R+) Reverse (R+) Reverse (R+)
    Dimensions (L×W×H, mm) 242×175×190 278×175×190 315×175×190 278×175×190 (AGM)

    For Qashqai J11/J12 with the system Start/Stop necessarily use AGM batteries (For example, Bosch S6 AGM or Varta Start-Stop Plus). Installing a conventional acid battery will lead to its rapid failure (due to frequent charge-discharge cycles) and errors in the operation of the energy recovery system.

    On diesel versions (K9K/R9M) it is recommended to choose batteries with a high starting current (from 700 A). This is due to the high compression ratio and the need to crank the crankshaft under load. Good options: Exide Premium (EA750) or Mutlu Silver Evolution (L3 90Ah).

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    On Qashqai J12 with hybrid installation e-Power a standard 12V battery is responsible only for powering the on-board network. Its capacity may be lower (50–60 Ah), but it must support the technology EFB for stable operation of the recovery system.

    Typical mistakes when removing a battery and how to avoid them

    Even small things can turn into serious problems. That's what it's impossible to do when working with a battery Qashqai:

    • 🔌 Disconnect terminals when the engine is running - this is guaranteed to damage the generator and charging control unit. On Qashqai J11 with MR20DD such a “trick” will cost a replacement ECM (from 50,000 ₽).
    • 🔧 Use open-end wrenches instead of socket wrenches - terminals on Qashqai often they “stick”, and the open-end wrench will tear off the edges of the bolt. You will have to drill out the mount.
    • 💧 Ignore electrolyte leaks — on diesel versions, corrosion from acid quickly eats away the metal tray under the battery. If you notice a white coating, clean it with a soda solution (1 tablespoon per glass of water).
    • 📱 Do not check the voltage of a new battery before installation - even a new battery can be discharged. Normal terminal voltage: 12.6–12.7 V.

      • A special story - Qashqai with the system ProPilot. After disconnecting the battery, cameras and radars may require recalibration. If the icon on the dashboard lights up LDW (lane departure warning), follow the learning procedure:

      1. On a flat road, accelerate to 40 km/h.
      2. Turn on the system LDW button on the steering wheel.
      3. Drive 5–10 km in a straight line without crossing the markings.
      4. Turn off the ignition for 1 minute.
      ⚠️ Attention: On Qashqai J12 with NissanConnect After replacing the battery, communication with the servers may be lost Nissan. To restore access to deleted functions (for example, starting the engine through an application), reset the network settings in the multimedia system menu: Settings → System → Network reset.

      FAQ: answers to frequently asked questions

      Is it possible to remove the battery on a Qashqai without resetting the settings?

      Yes, if you connect external power supply (for example, charger CTEK MXS 5.0) to the cigarette lighter or directly to the terminals via crocodile clips. This will keep the voltage in the on-board network at 12 V and prevent the control unit memory from being reset. Important: the external source current must be at least 5 A.

      Why does the engine run intermittently after replacing the battery on a diesel Qashqai?

      This is due to the reset of the high pressure fuel pump adaptations (HPFP). On diesels K9K/R9M procedure required after power outage pump retraining (described in the assembly section). If this is not done, the ECU will not be able to correctly calculate the pressure in the fuel rail, which will lead to jerking at idle and loss of power.

      Which battery is better for Qashqai with Start/Stop: AGM or EFB?

      For systems Start/Stop AGM required. EFB is only suitable if your equipment does not have an energy recovery function (check for the icon ECO on the dashboard). AGM withstands 3 times more charge-discharge cycles and tolerates deep discharges better. Optimal models: Bosch S6 AGM (70Ah), Varta Start-Stop Plus AGM (74Ah), Exide AGM (75Ah).

      What should I do if the keyless entry key does not work after replacing the battery?

      Most likely, the binding of the key to the immobilizer has been reset. To resynchronize:

      1. Close all doors.
      2. Insert the key into the ignition and turn to position ON (do not start the engine).
      3. Press the lock button on the key 6 times in a row (at 1 second intervals).
      4. Turn off the ignition and remove the key.
      5. Repeat steps 2-4 for all keys.

      If the procedure does not help, you will need to diagnose the unit BCM (possibly reset via Nissan Consult).

      Is it possible to install a battery with a larger capacity than the standard one?

      Yes, but with reservations:

      • For petrol Qashqai capacity can be increased to 75 Ah (instead of the standard 60–65 Ah), if the generator produces a current of at least 100 A.
      • For diesel engines, the maximum recommended capacity is 90 Ah (For example, Mutlu Mega Calcium).
      • On versions with Start/Stop Exceeding the capacity by more than 10 Ah can lead to incorrect operation of the recuperation system.

      Important: when installing a battery with a larger capacity, check whether it will fit in the standard tray. For example, battery 315×175×190 mm won't fit in Qashqai J10 without modification of fastenings.