Modern car keychain for Nissan Murano The second generation (Z51) is a sophisticated electronic device that provides keyless entry and engine starting at the touch of a button. Over time, owners are faced with a typical problem: the signals become weaker, the system no longer recognizes the key, and a low battery warning lights up on the instrument panel. In most cases, the reason lies not in a breakdown of the electronics, but in a simple discharge of the built-in battery.
Replacing the battery in the key Nissan Murano Z51 is a procedure that you can perform yourself in a few minutes, without going to a dealership and without spending money on expensive diagnostics. The main thing is to act carefully so as not to damage the case or microcircuits. Below we will analyze in detail the process of choosing a suitable battery, tools for opening it, and a step-by-step algorithm of actions that will save you from losing access to the car.
Discharge diagnostics and symptoms of malfunction
Before disassembling the key fob, you need to make sure that the problem is really in the battery, and not in a malfunction of the car's receiver or a software glitch. For keys Nissan Intelligent Key characterized by specific symptoms that are difficult to confuse with something else. If you notice that the door opens only when the key fob is brought as close as possible to the handle, itβs time to sound the alarm.
One of the most obvious signs is the appearance of a message Key Battery Low on the dashboard when trying to start the engine. It is also characteristic that the start button START/STOP stops responding to pressure, and the system requires you to attach the key to a special mark in the cabin. In some cases, the key fob may continue to open the doors, but the remote start function stops working due to insufficient voltage.
It is important to understand that even if the indicator on the key fob is blinking, this does not always mean it is fully charged. Batteries lose their efficiency gradually, and at the time of peak loads (for example, when transmitting a signal to a remote start), there may not be enough voltage. If you have already tried holding the key to the steering column to start, but it only helps sporadically, most likely the battery requires immediate replacement.
β οΈ Attention: Do not try to βreanimateβ an old battery by heating or tapping. This may lead to leakage of electrolyte, which will irreversibly damage the contacts on the key fob board. Nissan Murano.
Choosing the right battery
For correct operation of the key Nissan Murano Z51 It is critical to use a battery with the correct specifications. In most cases, a standard lithium tablet is used here CR2032 or CR2026. Although these elements have the same diameter, the difference in thickness (3 mm vs. 2.5 mm) can significantly affect the quality of contact inside the housing.
When purchasing, focus on trusted manufacturers, such as Duracell, Energizer or Panasonic. Cheap analogues from unknown brands often have a declared capacity that does not correspond to reality, and can run out of charge after just a couple of months of use. Itβs better to overpay 100-200 rubles for a brand than to disassemble the key again after a short time.
Please note the release date of the battery. Lithium batteries have an expiration date, and if you buy an expired product, it may not work even from the factory. Check the label on the package - the shelf life is usually from 3 to 5 years. For the key Nissan It is recommended to use a battery with the highest possible capacity to ensure a stable range.
- β Use only fresh batteries with a release date no older than 1 year.
- β Check the polarity on the old battery before installing a new one.
- β Avoid buying batteries by weight in crossings.
Tools and preparation for work
Opening the key fob case does not require complex professional tools, but the presence of certain items will simplify the task and minimize the risk of scratches. You will need a flathead screwdriver with a thin blade or a special plastic pick to open the cases. Metal tools can be used, but only with great care.
Also prepare a dry cloth or gloves to avoid leaving traces of grease on the board and contacts. If you are working in poor lighting conditions, take a flashlight or turn on a bright lamp, as the parts inside the key fob are quite small. Remember that there are sensitive electronics inside that can be damaged by static discharge.
Before starting work, inspect the key fob for visible damage. If the case has already been opened previously and has traces of glue or tape, be prepared for the fact that the plastic may be fragile. In some cases, to access the battery, you must first remove the mechanical key, which is located in a hidden compartment.
βοΈ Preparation for replacement
Step-by-step instructions for replacing the battery
The replacement process begins with removing the emergency mechanical key. On the side of the keychain Nissan Murano find the small release lever. Click on it and pull the metal key out. The slot of a screwdriver is often inserted into the vacated hole to begin the process of opening the case.
Insert a thin screwdriver or pick into the groove between the body halves and carefully rotate the tool. Do not use excessive force as the plastic may crack. You should hear a characteristic click, indicating that the latches have come unfastened. After this, separate the two parts of the body with your hands, without jerking them sharply.
When the case is open, you will see the board and battery held by a plastic bracket. Carefully tuck the old power supply with a screwdriver or nail and remove it. Note the polarity: usually positive contact (+) looks up. Insert the new battery on the same side, making sure it is firmly fixed in the socket.
After installing the new battery, reassemble the case in reverse order. Apply light pressure to both halves until you hear the latches click. Return the mechanical key to its place until it stops. Check the operation of all buttons: locking, unlocking and opening the trunk should work instantly.
β οΈ Attention: If during assembly you do not hear the clicks of the latches, do not try to close the key by force. Most likely, one of the latches is not in place, and the case will open over time, which will lead to the loss of the key at the most inopportune moment.
- Energizer
- Duracell
- Panasonic
- Varta
- Other
Common replacement mistakes
Many owners Nissan Murano Z51 make the mistake of trying to insert the battery by force or turning it over the wrong way. This may lead to oxidation of the contacts or failure of the battery retainer. If you notice that the battery is loose in the socket, the latch is bent or broken and will require more careful work or replacement of the entire case.
Another common mistake is touching the key fob board with hands without gloves. Oil from the skin can oxidize the contacts over time and impair signal conductivity. It is also not recommended to use lubricants or oils to improve contact, as this will lead to the accumulation of dust and dirt inside the case.
Sometimes when opening, users damage the plastic latches by using tools that are too thick. This makes the case leaky, and moisture or dust can get inside. In such cases, it is recommended to use glue or special plugs to restore the integrity of the key fob.
- β Do not accidentally turn the battery over as this may cause a short circuit.
- β Do not use glue to fix the contacts inside the keychain.
- β Do not leave the key open for a long time to avoid dust.
Checking operation and synchronization
After replacing the battery, additional synchronization of the key with the car is usually not required. System Nissan Intelligent Key automatically recognizes a new battery the first time you press the button. However, if the buttons are not responding, try the rebinding or reset procedure.
To check operation, go to the machine and press the lock button. If the doors close and the indicator on the door blinks, then the replacement was successful. Also check the remote engine start if this feature is enabled in your vehicle. Make sure that the key fob's range has returned to its original values.
If the car does not recognize the key even after replacing the battery, there may be a problem with the circuit board or receiver. In this case, you should contact the service for diagnostics. But in 95% of cases, a new battery solves the problem completely and without additional settings.
Correct installation of the CR2032 battery, observing the polarity, guarantees stable operation of the Nissan Murano Z51 key without the need for reprogramming.
What to do if the key stops working after replacement?
Sometimes when replacing the battery the memory is reset. Try placing the key on the start mark on the steering column and pressing the brake pedal, then the Start button. If this does not help, check that the battery is inserted correctly.
Technical specifications and compatibility table
To make it easier to choose a battery, we have prepared a table that shows the main characteristics of batteries suitable for keys Nissan Murano different generations. This will help you avoid mistakes when purchasing in a store.
| Key model | Battery type | Voltage | Thickness | Service life |
|---|---|---|---|---|
| Murano Z51 (2015-2020) | CR2032 | 3 V | 3.2 mm | 1-2 years |
| Murano Z50 (2003-2014) | CR2032 | 3 V | 3.2 mm | 1-2 years |
| Nissan Qashqai J10/J11 | CR2032 | 3 V | 3.2 mm | 1-2 years |
| Nissan X-Trail T32 | CR2026 | 3 V | 2.5 mm | 1-2 years |
Please note that although some keys may accept a battery CR2026, for Nissan Murano it is recommended to use CR2032 due to larger capacity. This will ensure longer service life and stable operation of the keyless entry system in harsh weather conditions.
If you change the battery in cold weather, keep the new cell warm (in your pocket) before installing. A cold battery may temporarily not produce the required voltage and the key will not work immediately.
Frequently asked questions from owners
Do I need to reprogram the key after replacing the battery?
In the vast majority of cases for keys Nissan Murano Z51 no reprogramming required. The system automatically detects a new battery the first time you press the button. If the key does not work, try placing it on the start mark on the steering wheel.
Can a CR2026 battery be used instead of a CR2032?
Physically, a CR2026 battery can fit into the compartment, but it is thinner (2.5 mm versus 3.2 mm). This can lead to poor contact and rapid discharge. It is recommended to use CR2032 to ensure a reliable connection.
How can you tell if the battery is dead if the key works?
If you notice that the range of the key fob has decreased or a message appears on the dashboard Key Battery Low, this is a sure sign of discharge. There may also be a delay in the lock buttons responding.
What to do if the plastic case latch breaks?
If the latch is broken, the case may open at the most inopportune moment. You can carefully glue the case together with superglue or use a special repair kit for key fobs. In extreme cases, the entire body can be replaced.
How much does it cost to replace a battery at a service center?
At a dealership, replacing a battery can cost from 1,000 to 3,000 rubles, taking into account the cost of work. Replacing it yourself will only cost you the cost of the battery (about 200-400 rubles), which is much more profitable.
β οΈ Attention:
Replacing the battery in the key Nissan Murano Z51 is a simple but important procedure that will extend the life of your device and ensure comfortable use of the car. By following our recommendations and using high-quality batteries, you will forget about problems with keyless entry for many years. Do not put off replacing until later as soon as you notice the first signs of discharge.