Replacing the battery (battery) in the remote control (key) Mazda CX-5

Replacing the battery in the Mazda CX 5 key

Replacing the battery in the Mazda CX 5 key is carried out in the following sequence:

Press the button and remove the key itself from the case by pulling the flag.
Insert a screwdriver into the side slots where the key is and turn it, slightly opening the back cover.
Carefully separate the key fob by inserting a screwdriver around the perimeter of the key fob body.
Remove the back cover.
Use a screwdriver to pry off the battery cover with the rubber ring.
Remove the dead battery.
The battery in the Mazda CX 5 key is replaced with the positive contact facing up.
Reassemble everything in reverse order.
Align both halves of the key fob exactly and connect.
Replace the key.

The battery in the Mazda CX 5 key fob is CR2025.

It is recommended to replace the battery in the Mazda CX 5 key with products from Energizer, Duracell, Sony, GP, Panasonic, Maxell.

Content

Stage one, preparatory
Stage two: replacing the battery
Important Notes

How to change the battery in a Mazda 3 key? In principle, there is nothing complicated in this operation, and you won’t need to go to a service center if you know how to work with a screwdriver and are at least a little technically savvy. The problem can be completely solved with your own hands, having delved a little into the design of the key. The main thing is to maintain consistency and accuracy of actions, since the device is still quite fragile. How to do this correctly step by step is described in our article.

What battery is installed?

The type of battery used is CR2025 , a battery from any company will do, the main thing is that the markings correspond to those indicated above.

Energizer CR2025 from 80 rub.
DURACELL DL2025 from 150 rub.
ROBITON R-CR2025 from 20 rub.
GP Lithium CR2025 from 70 RUR
Panasonic Lithium Power CR-2025 from 70 RUR
Varta CR2025 from 75 rub.

It's simple, the more expensive and better the quality of the battery, the longer its service life. When purchasing a battery, pay attention to the manufacturer and country of production.

Well, if you are the owner of a Land Rover, you may need help from certified specialists, you can find them, for example, here. The car service has been operating for quite a long time, there are enough reviews.

What kind of battery does it cost?

A CR2025 battery is installed in the key at the factory. To replace this battery, similar products from any manufacturer are suitable, but it is better to give preference to companies such as Maxell, Panasonic, Sony, Energizer, GP, Duracell.

Comparison of two batteries

Experienced Mazda car owners suggest replacing the standard element with CR2032. If the “native” battery has a capacity of 150 mAh, then the proposed replacement has this figure equal to 210 mAh. True, its thickness is 0.7 mm greater. But experts say that this does not interfere with connecting and snapping the two halves of the key fob without any problems.

Choosing the right battery

Before replacing the battery, you need to choose a new, more reliable one.

Basically, keys with an immobilizer use CR batteries. To replace the battery, it is better to look for a larger CR, as this indicates how long the mechanism will operate. However, a standard CR 1620 battery will do. Many brands have standard batteries marked CR, so purchasing one is not difficult. The unit comes standard with a Panasonic battery. If the reader is satisfied with the battery life of this company, then it makes sense to install it, especially since it has the lowest price in stores.

Replacing the battery in the keys

#81 D.Sariev

User64 posts

From: Moscow
Club RMC: Cx-5.ru
Car: MAZDA CX-5 2.0 SUPREME 4WD
Name: D.Sariev

Along the way, I'm the only one who broke off the plastic latches on both keys)))

Now the key is a little loose inside.

#82 skala

Newbie8 posts

From: salavat
Club RMC: Cx-5.ru
Car: MAZDA CX-5 TOURING 4WD

People tell me what's funny. Yesterday the car did not lock with the button, or rather it did, but after the 20th time. I locked it with the key and opened it this way and that. Well, I think it's probably the battery. But what’s strange is that I never saw an alarm about this on the display, I think, okay, I changed it. Well, I changed it. The hop worked like half a kick, I calmed down and spent the whole day running errands. I arrived, everything wouldn’t close, I did this and that, and in the end I couldn’t close it with the key. There are 2 options: either the purchased battery is dead or the problem is not in the battery.

Who can tell me what?

#83 FGIPO

User1 276 posts

From: Yamalo-Nenets Autonomous Okrug
Club RMC: Cx-5.ru
Car: MAZDA CX-5 2.5 SUPREME 4WD
Name: Andrey

#84 UrVas

User20 172 posts

From: Peter
Club RMC: Cx-5.ru
Car: MAZDA CX-5 2.0 ACTIVE 2WD
Name: Yuri

skala,Try the second key. It will immediately be clear - it’s the key and what else.

#85 russianbush

User54 posts

From: Arkhangelsk
Club RMC: Cx-5.ru
Car: MAZDA CX-5 TOURING 2WD

no one thought to post a photo. Not everyone has an instruction manual at hand

When there is no God, we can do everything, but who said that there is no God.

#86 Katana

User165 posts

From: St. Petersburg
Club RMC: Cx-5.ru
Car: MAZDA CX-5 TOURING 2WD
Name: Valery

It’s better not to pick with a screwdriver, but with a plastic card.

#87 Alexeus

User61 posts

From: Moscow region.
Club RMC: I'm not in the club
Car: MAZDA CX-5 SPORT 4WD
Name: Alexey

The CR2032 battery installed normally. The key fob is closed tightly, the key is inserted into the key fob without much effort, as usual.

#88 samurai

User4 435 posts

From: Moscow
Club RMC: Cx-5.ru
Car: MAZDA CX-5 SPORT 4WD
Name: Vadim

The CR2032 battery installed normally.

#89 Butab69

User507 posts

From: From point A to point B
Club RMC: Cx-5.ru
Car: MAZDA CX-5 2.5

#90 Ewenok

User2 179 posts

From: Moscow
Club RMC: Cx-5.ru
Car: MAZDA CX-5 TOURING 2WD
Name: Ilya

It was a native Panasonic, it worked for 1 year and 10 months from the date of purchase of the car. I replaced it with the one that was in the second key (I immediately took it out of the key after purchase).

Mazda CX-5 2.0 AT 2WD Arctic White + bi-xenon

#91 DDP_VIP

User2 235 posts

From: Nizhny Novgorod
Club RMC: Cx-5.ru
Car: MAZDA CX-5 TOURING 4WD
Name: Dmitry

It’s actually strange that the battery lasts so little. I am extremely outraged by this fact. I drove my previous car with one key for 6 years and sold it without changing the battery in the first key and with the second key “unopened.” And here not even two years have passed. what the. ugliness. It’s good that at least the machine warns about discharge.

#92 Seryoga

User15 117 posts

From: hero city Kemerovo
Club RMC: Cx-5.ru
Car: MAZDA CX-5 2.5 SUPREME 4WD

I drove my previous car with one key for 6 years and sold it without changing the battery.

with keyless access?

#93 DDP_VIP

User2 235 posts

From: Nizhny Novgorod
Club RMC: Cx-5.ru
Car: MAZDA CX-5 TOURING 4WD
Name: Dmitry

no - exactly with the key one. I also pressed the button every time - open and close.

#94 fenX

User1 344 posts

From: Cheboksary
Club RMC: Cx-5.ru
Car: MAZDA CX-5 2.5
Name: Sergey

Here the antenna is always in active mode, as it were.

Mazda CX-5 Pyatak 2.5L and package No. 3 (hatch)

#95 Seryoga

User15 117 posts

From: hero city Kemerovo
Club RMC: Cx-5.ru
Car: MAZDA CX-5 2.5 SUPREME 4WD

#96 Igo

User596 posts

From: 51RUS
Club RMC: I'm not in the club
Car: MAZDA CX-5 SPORT 4WD
Name: Igor

What brand of battery is in the key?

Today I also had to disassemble one key, took out the battery, it was made by Panasonic 3V, made in Indonesia, it served for 2.5 years, in principle it was fine.

Chrome trim for fog lights for CX5 (II)

#97 DDP_VIP

User2 235 posts

From: Nizhny Novgorod
Club RMC: Cx-5.ru
Car: MAZDA CX-5 TOURING 4WD
Name: Dmitry

I have a simple package - no bells and whistles. I open the door by pressing the button on the key. In fact, the battery should only work when the buttons are pressed - opening and closing. So I’m indignant - it wasn’t even enough for two years (((

#98 Megabass

User889 posts

From: Moscow
Club RMC: Cx-5.ru
Car: Not Mazda
Name: Leonid

Over the weekend I changed the battery - it was 2025 and lasted almost 2.5 years. I set it to 2032 - it stood up normally, the key fob closed, everything works. I hope 2032 will last longer

You cannot give everything to everyone, because there is a lot of everyone, but only a little of everything.

#99 petrovich

User51 posts

From: Tyumen
Club RMC: Cx-5.ru
Car: MAZDA CX-5 TOURING 4WD

Lucky ones, I've already changed 3 in 3.5 years

#100 AVSavs

User3 761 posts

From: resort town Goryachiy Klyuch
Club RMC: Cx-5.ru
Car: MAZDA CX-5 2.0 SUPREME 4WD
Name: Anatoly

Lucky ones, I've already changed 3 in 3.5 years

If there is no additional security system)) alarm system)) with a key fob, then you constantly use your native Mazda one, apparently this will be the case.

Replacing the battery in a standard Mazda 3 flip key — logbook Mazda 3 2.0 6MT 2007 on DRIVE2

1) Click and move

2) We get two halves

I advise you to clean everything from the dirt that accumulates in the key, mainly in the places of plastic joints.

Then everything is clear, we pry off the battery and replace it with a new one. We take the deceased to the nearest hazardous waste collection point and save the Earth for posterity!

I took the buttons from a previously purchased Chinese keychain. The plastic of the keychain, by the way, is good, but the original one still warms the soul more) I bought it to make a blank key in reserve, there are no internals in it.

We put everything together and it works.

With the onset of cold weather, the doors stopped opening with the standard key. Moreover, when you leave the house in the morning, it works, you get to work and the car no longer locks it. It was decided to replace the battery. Changing everything is not difficult enough. 1. You need to split the key in half.

Disassembled key

2. Divide half of the key lengthwise. Again, the same paper clip worked perfectly for these purposes.

We see a CR16203 battery installed inside. We take out the old battery. This, oddly enough, turned out to be the hardest part for me when replacing. Somehow she didn’t get it easily. Maybe because the only tool I had was a paperclip. To do this I had to bend it with a hook. Although the instructions say click here to extract. Pressing doesn't work. I had to dig it out of there.

4. Insert a new battery. 150 rubles. I bought it from a watch repair shop.

5. Reassemble in reverse order.

Price tag: 150 ₽ Mileage 95000 km

www.drive2.com

How to change the battery in a Skoda key fob

How to disassemble the Skoda Octavia key and replace the battery At some point, many people have encountered the problem of a dead battery on their alarm or key remote control. Such a problem can happen to anyone, in the end you need to know how to open the car in such situations and how to replace the battery . In this article, this information will be presented using the example of a Skoda .

Disassemble the key and change the battery

So, replace the battery In the key, you will need to first purchase and prepare a new battery. Visual assistance for replacing a bearing on the front of a Renault Logan. A CR-2032 lithium battery is used for this. You also need to prepare a small screwdriver for the job:

The first thing to do before your shift. is to turn the key over.
Then, in the place where the key itself is hidden, you need to lift the latch using a screwdriver. Then carefully lift the lid.
Insert the same screwdriver into the working socket and carefully push it in very tightly.
You can then manually remove the protective cover where the desired element is located.
Once disassembled, you can replace the battery with a new one, and then perform the operation in reverse order.

Here is a simple procedure to disassemble the key and replace the battery. This method is suitable for Skoda Octavia A5 and A7. Access to the car will be unlocked. Skoda flip itself replaced the battery in the remote control, how to replace the battery. How to replace the battery in a Skoda Fabia key. But it is not always possible to replace the battery. How to replace the battery in the ignition switch from several replacements video tutorials. For some reason the key may not work, and it's even worse if it's lost but you need access to the car. So you need to know how to get into the salon without keys.

Opening Skoda without a key

Replacing the battery Keywords Skoda Octavia A7 or A5 do not always give positive results. Therefore, owners need to know how to open a car without a key. These situations include the key being lost, stolen, or simply being locked in the center of the vehicle. Many cars, including Skoda, close their doors after a while.

Replacing the battery in the remote control

How to change

battery in VAG control panel

Skoda

Audi Seat WV.

Replacing the battery in the SKODA Octavia A7 key (how to open the remote control cover)

According to the original instructions for the machine, I could not open it. But it turned out differently. Easy and simple: no scratches.

If the car is closed, the keys remain in the middle, and the engine or network is running, it is recommended to try squeezing the door and inserting the wire into the socket that appears. Using this wire you can reach the power button and press down. You can then enter the cabin up to the key.
If there is no key, the lifts will not work. In such a situation, you will need to consult with specialist locksmiths who can open almost any machine using different technologies. In the article I publish: a video on this topic (not mine), a link to a step-by-step photo on how to replace the rear shock absorber on a Skoda, illustrations in detail. Naturally, this procedure will be paid and starts from 3,500 rubles. How to replace the battery in the ignition key | How to replace the cabin filter in a Skoda Octavia fl a5. But the working larvae will suffer from such costs. In an unpleasant situation, the main keys will not produce results.
You can open the car yourself in another way. It is necessary to use a long wire and a wire with a light bulb. The edge of the wire should be turned 90 degrees. Then press down on the top of the door with a board or kitchen spatula. It is recommended to work carefully to avoid damaging the paint on the machine. Once the gap appears, press down on the wire and try to reach it, then pull the handle to open the hood.

Finally, replacing the battery. the easiest way to open Skoda Octavia. In this article we will look at replacing spark plugs on a Skoda Fabia and how to remove spark plugs. If replacing the battery does not work, it is best to use one of the following methods. Do you want to change the cabin filter in Renault Logan? Don't know what to do and how to do it? By the way, sometimes it is cheaper to break a window and pay to replace it when using the services of loaf crumbs. But the choice of one method or another is up to each car owner.

How to disassemble a Lada key

For Lada Vesta/XRAY: open the key body by unsnapping the latches around the perimeter using a thin slotted screwdriver.

For Lada Largus: unscrew the fastening screw (Phillips screwdriver), and then open the key body, unclicking the latches around the perimeter using a thin slotted screwdriver.

For Lada Priora/Kalina/Granta: unscrew the fastening screw (Phillips screwdriver), and then open the key body, unclicking the latches around the perimeter using a thin slotted screwdriver.

The process is also shown in the video:

Let us remind you that if after replacing the battery the standard alarm still does not work, read these instructions. By the way, do you know how to make a flip key for a Lada yourself?

Rules for using the battery on the Mazda CX 5

Mazda CX 5

With frequent long trips on the highway in a Mazda CX 5, the battery does not require maintenance for several months or years. Traveling around the city in start-stop mode overloads the battery. The I-stop system, developed by Japanese engineers, significantly saves fuel during long stops, but it prevents self-charging from the generator.

Smart charging helps restore density, but it is not enough for long-term proper operation of the battery in the city.

The operating instructions recommend recharging the battery every 2-3 weeks during the urban start-stop cycle. With a mixed city-highway type, recharging is required as needed.

When does the need arise? How to remove, charge, install correctly? When is replacement or initialization required? How to do it?

When is charging required, when is replacement required?

Charging the battery

The state of charge of the battery (SOC - State of charge) of the Japanese crossover Mazda CX 5 must be maintained at a level of at least 80%, which corresponds to an electrolyte density of 1.24 kg/l and a no-load voltage of 12.48 V. If the indicated values are lower, immediate charger.

It is advisable to replace the battery if the discharge has occurred to 35%, its voltage has dropped to 12.06 V, and the electrolyte density has reached 1.17 kg/l. With a deeper discharge, the battery will inevitably need to be replaced.

How to remove and install the battery from a Mazda CX 5

Removing the Mazda CX 5 battery is simple:

Battery selection

disconnect the current sensor cable from the negative terminal;
disconnect the minus;
remove the plus;
remove the lock;
take out the battery.

Installation is carried out in the reverse order of removal. When manipulating the battery, it is especially important that the sensor cable is removed first and put on last. This way you will avoid errors in the operation of electronics.

Charger

The most comfortable and easiest way to charge is to use an automated device. CTEK MXS 10 meets all the requirements of the Mazda CX 5. Allows you to charge both indoors and without removing the battery from the car.

When using a charger that requires manual adjustment, you must first measure the density of the electrolyte in each battery bank with a hydrometer. Usually it differs; you need to focus on the minimum reading.

The density rate depends on the ambient temperature. At home it is about 22-23°C. At density:

1.24 kg/l charge the battery with a constant current of 10A for 2 hours;
1.21 kg/l – 2.5 hours;
1.17-1.18 kg/l – 3 hours.

Check the current hourly and adjust to 10A if necessary.

After charging is complete, it is recommended to leave the battery alone for a day. If this is not possible, it is advisable to wait at least 6 hours. Then measure the density in the jars. At room temperature it should be 1.25-1.27 kg/l. If the indicator is lower, and you are sure that the charger is working properly, the battery life in your car has expired and will have to be replaced.

Battery stabilization and initialization

The procedure is also called registration; it is required when replacing a new battery, charging an old one to synchronize the operation of the battery and the Japanese on-board computer.
Battery initialization process for Mazda CX 5:

with the engine turned off, set the switch to the On position;
models with displays display a warning message, disable it via the Info button;
set the gearbox lever to neutral gear;
release the brake;
with the brake depressed, press the gas pedal, the indicators on the panel will light up within a few seconds;
Without releasing the brake, press the gas three times, release it, the indicators should go out;
release the brake.

Remember to check the battery charge in a timely manner. This is especially true in cold weather and during frequent trips in start-stop mode. The freezing point of the electrolyte increases in inverse proportion to its density. So, at 1.27 kg/l the electrolyte does not freeze down to -60°C; for 1.17 kg/l -16°C is enough to freeze.

Battery replacement: Mazda CX-5

2013-2016
The video above shows how to replace the battery in a 2013 Mazda CX-5. We recommend changing the battery in Mazda every 4 years. While some batteries last much longer, most begin to chemically degrade after four years, so you may experience dimming headlights and other negative effects before your CX-5 runs out of battery and needs to be replaced.

To replace the battery in the CX-5, you must remove the terminals. When you reconnect the terminals, your radio presets will likely be erased. On some CX-5s, you may need to re-enter the security code to get the radio to work again. Check your owner's manual for this code - usually a sticker or small card in a booklet. If you can't find it, call Mazda and they will give you the code for free. In many Mazdas, the transmission "learns" how you drive and makes adjustments over time, so you may experience changing driving dynamics as your car relearns your driving style after replacing the battery.

How to change the battery in a Mazda key yourself

So, disassembling the key is not at all difficult, follow the instructions below and everything will work out.

There is a special latch on the back of the key; we move it to the side and pull out the top of the key with the metal tip.

Use a thin blade of a screwdriver to pry up the back side and separate the key into 2 parts. One of them contains a battery.

We take out the board from the second half of the key

Then we separate this half into 2 parts again to remove the battery.

The battery is located under another round cover, which also needs to be pryed off and the battery removed.

We replace it with a new one and put everything back together in reverse order.

Mazda 3 key disassembly

You need to disassemble the key with a small tool. This could be an extra-small screwdriver or an awl. This is necessary in order to reveal the key. The standard key for Mazda opens and is divided into two parts: the key itself and the battery. The battery is always located in the second unit - the battery.

To open the battery, you will need a screwdriver or an awl. The tool must be pressed on the fixing element, which is usually located in the crevice on the side. The locking element is a lever in the form of a very small button that must be pressed.

When pressed, one half - the lid - will separate from the other. When the cover comes off, the inside of the key will be visible. There you can also see a battery and a number of other devices.

Mazda 3 chip key – device description

Almost all modern cars have some degree of protection against theft, and much better than those cars that were produced in the 90s of the last century. One of these levels of protection is considered to be the presence of a car owner with a chip key.

How does the Mazda 3 chip key work? As we know, the car’s ignition switch housing is located in a special frame, which is directly connected to the immobilizer electronic unit. When we turn the key in the lock, the electronic unit of the device transmits certain impulses to the ignition lock frame and the reading mode, invisible to the human eye, is activated.

The information reading mode is the response from a key equipped with a chip. Next, the following happens: thanks to the impulse, the chip key receives the necessary energy and transmits the code embedded in it to the immobilizer frame.

The frame, in turn, receives an encrypted code and, if it matches the factory settings, gives a kind of permission to start the power plant. After which the engine starts and there is no longer a need for the starting circuit.

Signs of a Mazda 3 key problem

Reasons for engine start failure related to the immobilizer system and Mazda 3 chip key may be:

malfunction of the native key chip; a dead battery in the key (if the chip has an autonomous power supply, in most cases the performance of the chip does not depend on the battery, since it is a small autonomous crystal placed in a ceramic case without any leads);
breakage of the pumping loop or disruption of electrical connections to it;
malfunction in the power supply circuits of the immobilizer unit;
failure of communication between the immobilizer unit and the engine control unit; “failure” of the firmware of the engine control unit, immobilizer, which can be associated with a powerful electromagnetic pulse;
malfunctions in the power supply of the engine control unit; an attempt to start the engine with a non-original key; discharge or disconnection of the battery terminals, especially when the ignition is on.

A large number of reasons why the Mazda 3 immobilizer system leads to failure to start the engine require a strictly defined algorithm (sequence of actions) to identify a specific faulty unit.

One of the most common problems is the destruction of buttons (Mikrikov) on the key board. Buttons can become unusable over time, or a common situation is when the key body is cracked, and when you press the key button, the body itself is pressed through, and when you press the button, you come into direct contact with the button on the board.

In most cases, it is not possible to repair a chip key on a Mazda 3 yourself, since this procedure requires special skills and tools from you. Therefore, the recommendation of our website is that if the key chip breaks down, contact a specialist or purchase a new one.

This is interesting: Do-it-yourself cleaning of the Daewoo Nexia throttle body

Replacement process

The process itself is quite simple and will not take much time. To do this, you will need a new battery and a regular flathead screwdriver. Let's get started with the process:

Let's take the keychain.
Now you need a screwdriver.
We insert a screwdriver and turn it easily.
Twist until the cap pops off.
You can already see the battery. We take it out and insert a new one.
Carefully put the lid back on. Enjoy your use.