How to disassemble a Volkswagen key

EXECUTION ORDER

	2. Press the latches on both sides of the head and remove the head cover.
	3. Using a screwdriver, press the lock (2) and remove the top battery.
4. Remove the contact plate, turning it so that the two cut edges are located opposite the latches and, using the blade of a screwdriver, remove it from the head, see fig. Position of the contact plate (1) before removing it from the head .
5. Remove the bottom battery.
6. Install the bottom battery into the head with the positive terminal of the battery facing down. The positive terminal of the battery has a (+) sign.
7. Place the contact plate and the top battery on the battery with the positive pole down until the latches click into place.
8. Place the cover on the head until the latches snap into place.
9. Install and secure the head in the key.

1. Controls, instruments and equipment

1.0 Controls, instruments and equipment 1.1. Keys

2. Maintenance

2.0 Maintenance 2.1 Technical characteristics 2.2. Maintenance frequency 2.3. Engine oil 2.4 Checking the exhaust system 2.5. Engine cooling system 2.6. Spark plugs 2.7 Draining water from the fuel filter (diesel engines) 2.

8 Replacing the fuel filter (diesel engines) 2.9 Checking the tightness of the hoses and fluid leakage 2.10 Replacing the air filter filter element 2.11 Checking the condition of the poly-V-belt 2.12 V-belts 2.13 Measuring the wear of timing belts on diesel engines 2.14 Gearbox/final drive 2.

15 Checking the drive shaft protective boot 2.16 Visually checking the transmission for tightness 2.17 Checking the oil level in a manual transmission 2.18 Checking the oil in the final drive of automatic transmissions 2.19 Checking/replacing the oil level in an automatic transmission 2.

How to disassemble the ignition key of a VW Jetta

A new car that has just been purchased at a car dealership is always joy and euphoria for the owner. However, not much time passes and these first impressions develop into a sense of duty, since any vehicle, no matter how perfect it is, requires attention and timely maintenance. And this applies not only to consumable parts. Sooner or later, there comes a time when even the battery life of the remote key becomes zero and the car owner is faced with the logical question of how to disassemble the original key for remote control of a Volkswagen Jetta car in order to replace the battery in it. Of course, you can continue to drive your car using the most ordinary key, but sooner or later you will get tired of it, and you will want to change it to a remote analogue. The instructions for the key fob say that if you press its button and do not see a response sparkling light beam, then you need to change the battery by contacting the nearest service center for this service. But replacing a battery is not the most compelling reason to turn to a car service center for help. Here is a small instruction that will help you change the battery yourself.

How to Disassemble a Volkswagen Polo Key

How to disassemble a Volkswagen Polo

Recovery key for VW POLO (Volkswagen Polo). The story of one repair.

Call the wizard to open the machine. open car door.
Call a tow truck. The car was pulled into one of the car repair shops in the parking lot.
At the car service, the alarm was turned off, the ignition switch was removed and sent to one of the key workshops. VW ignition key repair.
The key workshop allegedly restored ignition without a chip. (then we will explain why “supposedly”)
The car service center replaced the ignition switch. The car was parked awaiting further action.
Technicians were called in to repair the chip in order to start the engine.

Disassembling a VW Jetta key to replace the battery

We offer step-by-step instructions that will help even a beginner replace the battery in the remote key for a Volkswagen Jetta. To do this, you only need a small set of screwdrivers or any thin metal object and a few minutes of free time. So, your actions and their sequence look like this:

first you need to open the key body, to do this, pull out the bit by pressing a special button;
insert the screwdriver into the groove and begin to twist it into the spacer, and then push the key apart with your hands, visually dividing it into two parts;
remove the cover on the back of the key body in the direction of the arrow;
after carrying out the above operations, you will see a round coin battery, which you need to change;
to remove the old battery, you need to use a suitable thin object or a small flat-head screwdriver to remove the battery from the special compartment;
position the new battery as shown in the figure, observing the polarity conditions;
press it into the compartment in the direction opposite the arrow;
position the cover as shown in the figure and press it against the key body in the direction against the arrow until it locks;
Next, you need to synchronize the key; to do this, pull out the key bit;
remove the cover from the driver's door handle, if provided;
press the button on the key with the image of an open lock, while it is important to be near the vehicle;
within one minute, unlock the Volkswagen Jetta with the key bit, thereby completing the synchronization process;
then replace the cover.

Now all the necessary operations to change the battery and subsequent synchronization of the key have been completed. The Volkswagen remote key will operate normally until the next time the battery is replaced.

Step-by-step instructions for disassembling a Volkswagen key

If there is a need to replace any element in a VW car key, then it is quite possible to do it yourself, the main thing is to properly disassemble the key in order to remove the faulty part. To do this, we only need a set of screwdrivers, tweezers and a little free time. Let's go directly to the step-by-step instructions, which will answer the question of how to disassemble the original Volkswagen Jetta key.

there is a small slot on the side into which you need to insert the end of a flat-head screwdriver;
carefully, using a slight turning movement, separate the two parts of the body of the original Volkswagen key;
after you have both parts of the Volkswagen Jetta key in your hands, you should pay attention to the larger one, because it is there that you can find a special serial number by which you can order the necessary parts of the case or the case itself;
in order to disassemble the part that contains the metal bit, for this you need to turn the key with the front part towards you and unscrew a small screw;
then remove the front and back parts of the housing with a separating motion, thereby releasing the metal beard;
it is necessary to do this slowly, since there is a small spring inside that must be put aside;
also in the front part of the key contains an immobilizer chip, which can be removed using tweezers;
the upper part of the body is also disassembled using a disconnecting motion;
Inside there is a board and a battery that can be easily detached from the mounts.

In this simple way, you can disassemble the key to a Volkswagen Jetta of any model and, having ordered the necessary body parts or internal spare parts in advance, replace them yourself. It is worth saying that in most Volkswagen Jetta operating manuals this information on disassembling and assembling the key, unfortunately, is not available. However, this, as a rule, does not stop VW Jetta car owners, and they try to perform these actions on their own at their own peril and risk. Well, now there is an opportunity to take advantage of the experience of those who have gotten the hang of it, and without the risk of damaging the VW Jetta remote key, disassemble it.

How to change the battery in a Volkswagen key

Home » Volkswagen » How to change the battery in a Volkswagen key

When purchasing any car of this brand, the client receives two remote control key fobs. Each of them has its own battery, which can be quickly replaced if necessary.

In addition to them, the motorist receives a special service key and a plastic tag on which the serial number of the remote control key fob is indicated.

It plays a rather important role for the owner and may be necessary if there is a need to replace the battery in the Volkswagen key, for which you should contact a company service center.

It is best to store the tag with the number not in the car itself, but in a safe place along with the documents for the vehicle.

Element device

Before replacing the battery in a VW key, you need to understand how the element works. It consists of the following parts:

button to close the lock;
trunk opening button;
a button to help open the trunk;
indicator light indicating the current charge of the control unit.

The key fob also contains chips for remote control and an immobilizer, which receive power from a removable unit.

The keychain itself is fragile and can easily be damaged not only from mechanical stress, but also from exposure to too low or high temperatures.

It is important to be able to determine when it is necessary to replace the battery in the Volkswagen key fob. The first signal will be a decrease in the range, which according to the standard for such cars is from 5 to 15 m. A discharged element will be indicated by a non-working power indicator light.

If you urgently need to replace the battery in the control unit, proceed as follows:

Press the side button and remove the service key from there, which is necessary to attach the key fob to the keychain.
Press firmly on the cover until it locks, after which it is removed from the key fob.
Using a screwdriver or a thin tool, pry the side cover to remove it; remove the discharged battery in the same way.
A new battery is inserted at an angle and secured with moderate pressure. It is important to observe polarity - the battery must be installed with the plus side facing up.

After the replacement has been made, you need to reassemble the remote control unit in the reverse order. For this purpose, you should first fix the side cover. Then put on the top cover, then press the side button to close the structure until a certain click appears.

Put back the service key and check how efficient the assembled key fob is. Locks may not respond to block signals. This means it's worth synchronizing.

Why is synchronization needed?

Synchronization is necessary not only when replacing a dead battery. There may be other reasons, for example, if there were frequent key presses outside the range of the remote control.

You need to open the lock using the service key and try to start the car using the key fob. Synchronization as a result completes a set of actions that easily allow you to replace the battery on a Volkswagen key in the same way as on similar simple devices.

Replacing the battery on the remote control is essential for long-lasting operation. The process is not particularly difficult. It is important to strictly follow the instructions for replacing the battery, which will accurately correct existing problems and increase the life of the elements.

An important process to check the functionality of a newly assembled control unit is synchronization.

It is important not only for the assembled remote control unit, but is also necessary in order to correct problems that arise as a result of pressing the key for a long time outside the operating range.

If you replace the battery on a Volkswagen car in a timely manner, you can use the remote control unit for a long time without complex breakdowns or problems.

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Disassembling the flip key from the Polo sedan

The dominance of electronics in our time is a standard phenomenon. Technology development does not stand still. The mechanical components of the car are replaced with electronic ones. The day is not far when the machine will be controlled not by a person, but by a computer.

An integral part of any car, be it a foreign car or a representative of the domestic automobile industry, is the key. A traditional device that allows you to open or close the interior of a car and activate the ignition system. Previously, it looked like an ordinary key with a skillfully carved blade that had an individual thread for a specific car. It was difficult to distinguish a car key from the one used to lock an apartment or garage.

Today, electronic central locking technology takes all the initiative. I pressed one button - the lock automatically unlocked, clicked on the second - all the doors closed. It’s very convenient - you don’t need to fiddle with the keyhole for a long time, trying to push the tip of the “master key” into it. In addition, the electronic key looks more impressive than its mechanical counterpart. Especially if you buy an elegant keychain or a fashionable case for it. The latter costs differently depending on the material: plastic can be purchased for 500 rubles, and silicone for 300 rubles.

How to disassemble a key for a Volkswagen Polo sedan

We halve the original key and see this picture. We would like to be more careful, of course, but acetone did not help - we slowly sneak with a sharp hot blade towards the fragile chip; one of the Drivers had already broken it with a screwdriver.

Package from Aliexpress: Volkswagen flip key

You can design the board using the Splan 7 software interface. Even I was a little carried away Wrote a key here for a Volkswagen Polo sedan of unnecessary beeches Next is a short video: These days, the fashionable Smart Key system is gaining popularity, which allows the car owner to unlock or lock doors at a short distance without pressing on the button.

Automatic start for Volkswagen Polo sedan: In order to install an alarm system with automatic engine start, you need...

Moreover, we can produce polo keys, both simple and original with buttons. But it was not there. The day is not far when the machine will be controlled not by a person, but by a computer.

That is, the polo sedan key chip can be made as much as needed for ease of use. If the signal matches what is stored in the computer base, then the doors automatically open. Maybe,

Features of car electronic keys

A push-button remote control lock is the most common type used on most modern vehicles, but it is not the last. These days, the fashionable Smart Key system is gaining popularity, which allows the car owner to unlock or lock the doors at a short distance without pressing a button. The essence of the technology is that the internal chip of the key contains an encrypted code that, using radio waves, recognizes a special sensor in the car. If the signal matches what is stored in the computer base, then the doors automatically open.

However, the keyless entry function is installed mainly on expensive cars with a price tag of 1 million rubles. For "state employees", such as the Volkswagen Polo sedan, only electronic keys are made. It is interesting that even in the Comfortline configuration, owners of Kaluga cars are given two ordinary non-flip keys. But when purchasing a top-end Highline, dealers give the buyer two folding keys at once.

Of course, with a flow pattern it is more reliable and comfortable. In addition, it looks more stylish than the protruding tip of a standard key. In this regard, some owners of the Polo sedan have a desire to convert a simple “master key” into a copy with a retractable mechanism.

There are often cases when the tip holder, which is usually made of silumin (aluminum + silicon), simply breaks when turned incorrectly. A very unpleasant moment, especially if the car is located away from home. In addition, purchasing a similar key from the “officials” will not be cheap.

Some experts who received simple “master keys” are working on refining them. Namely: they change the case to a new one with three buttons and reconfigure the key fob so that all functions (including opening the trunk) work with a bang.

Replacing the battery in a Volkswagen key

If the disk power supply in the VW key fob is discharged, the button will not be able to disarm the car and open the central locking. Therefore, you will have to use a chip key to open the door manually. This is inconvenient, and the car may not start if the immobilizer does not recognize the electronic content of the key. Replacing the battery in a Volkswagen key with your own hands is an extremely simple operation. There are two types of VW car key fobs:

old type - consists of two parts, the chip key is located on the side end of the key fob and is moved to the working position manually (the Volkswagen logo is circled in blue);

Replacing the battery in an old style key fob

The cover under which the tablet is hidden is located on the opposite side of the buttons. Therefore the actions are:

Turn the keychain over to its side.

Video: how to change the battery in a Volkswagen key

Replacement in a new VW key fob

Replacing the battery in a new type key fob is as follows:

Press the round button to eject the electronic ignition key.

Video: replacing the battery in the Volkswagen Tiguan ignition key

There are also types of keys with buttons for Volkswagen cars, in which replacing the batteries is somewhat different from the examples given above, for example, for the VW Passat.

Video: how to change the battery in a Volkswagen Passat B6, B7, B8 key

The algorithm for replacing the battery in the VW Touareg NF key fob also has its own characteristics.

Video: replacing the battery in the Touareg NF key

The Volkswagen electronic ignition key requires respectful attention. It cannot be lost; it must always be in working order. A dead battery can lead to dire consequences: the car alarm will not turn on or turn off, the central locking will not open, and therefore the trunk will not open. Finally, the car may simply not start. The services of specialists who can solve these problems are not cheap. Therefore, you should always have a new CR2032 coin cell battery in stock and be able to change it in the key fob yourself.

Guide to self-disassembly and modification of the key

In each of the above cases, to implement the idea, it is necessary to disassemble the key body. The only cost in the process is purchasing a blank (of course, if you are not going to disassemble the key for fun). You can buy a Chinese “pacifier” for 600 rubles. in an online store, or the original, which will cost almost twice as much.

Of the tools, the most suitable candidate for drilling would be an engraver. He will handle with particular delicacy the uprooting of the pin, which is the main stumbling block when disassembling the “master key” of the Polo sedan.

Carefully pick up the corporate logo with a knife and tear it off.

We drill a tiny niche in the hole in order to get to the pin.

Using forward movements, we push the end of the pin out and completely remove the iron “rod”.

We insert a thin screwdriver between the two halves of the case and carefully push them apart.

The key body is disassembled.

Then everything depends on the purpose of disassembling the “master key” of the Polo sedan. If the tip holder is broken, it can be removed from the blank and placed in its original socket. Just before this, you should sharpen the profile of the tip from the “dummy” so that it matches the broken key. Another option is to move the “brains” from the old exhibit to a blank.

The only negative: in this approach you will also have to make a hole in the groove using an engraver, since the principle of assembly and disassembly of the blank is the same as on the broken sample.

The main difficulty during assembly is to correctly place the button with the holder and align the spring with the grooves on the cover. In order for the case to slam shut, you need to slightly turn the lid counterclockwise, and then click the lid with a precise movement. Then we insert a pin into the hole and place the Volkswagen badge on the glue.

Those owners of the Polo sedan who decide to improve the key fob by converting a regular key into a folding one will have to work some magic with a new board and a soldering iron in their hands. As a basis for the “brains”, fiberglass laminate of type FR4 can be used. In order for the material to easily fit into the body of the dummy keychain, the board must be filed down to a thickness of approximately 0.8 mm. You can design a board using the Splan 7.0 software interface - a very convenient utility for everyone who communicates with a soldering iron on a first-name basis.

Review of batteries for Volkswagen car keys

The Volkswagen car key with buttons is powered by lithium batteries - a miniature battery, the size of which is comparable to a small button.

The most common brand is CR2032. It is also called a tablet. It is this that maintains the functionality of the VW push-button key for a long time.

Marking of lithium disk batteries

The first two Latin letters indicate the electrochemical system that is used in this type of planar current source. CR are manganese-lithium cells enclosed in a steel case. Lithium is used as the anode, and heat-treated manganese dioxide MnO2 is used as the solid positive electrode. The next two digits indicate the diameter, which is a whole number in mm. The last numbers indicate the height of the disk battery in tenths of a millimeter. Thus, the CR2032 battery stands for this:

CR - lithium battery with manganese-lithium electrochemical system;
20 - battery diameter equal to 20 mm;
32 - battery height equal to 3.2 mm.

The battery sockets in all car keys with Volkswagen buttons are the same and equal to 2 cm. Therefore, they use batteries from different manufacturers, the diameter of which is 20 mm.

Pros and cons of CR2032 lithium battery

Provides excellent performance thanks to high energy consumption.
It has good workmanship and, as a result, a long service life.
Guarantees long storage time due to low self-discharge current.
Does not lose performance over a wide temperature range: from –35 to +60 degrees.
Complies with international quality standards: ISO 9001, UN 38.3, CE, RoHS, SGS.

The price is higher than that of analogues with other types of elements.
Requires careful handling due to the risk of fire if the integrity of the housing is damaged.

Rating of CR2032 batteries of different brands by endurance

The experiment involved 15 CR2032 batteries of different brands.

To reduce test time, an extreme load of 3 kOhm was connected to each disk current source and the time during which the voltage dropped to 2.7 volts was measured. In reality, a key with VW buttons creates many times less load on the battery than during testing.

Table: comparison of battery life from different manufacturers, taking into account price

In first place by a significant margin is the Chinese Camelion battery, priced at 25 rubles. for one piece. Expensive Indonesian disk power sources Renata, Duracell and Energizer took the next three places. But their price is several times higher than that of the first brand. The Japanese Maxell, Sony and Panaconic, which are much inferior to the leaders, disappointed.

User reviews

Somehow, in passing, I picked up batteries for a car remote control under the Era brand. This company sells LED lights and everything that comes with it. So the batteries turned out to be very normal, despite the low price. Honest Chinese.

Moguchev Sergej

https://forum.watch.ru/archive/index.php/t-222366.html

I don’t agree about maxell. Six months ago I bought several packs of 2032. It lasted for three weeks instead of six months. They lie on the table, they don’t even pull the signal properly. I don’t argue that the company is decent, but no one is safe from counterfeiting.

venuz

https://forum.watch.ru/archive/index.php/t-222366.html

Sony CR2032 battery, I had this battery in my car key. This is far from the cheapest battery of this type, it would seem standard, ordinary lithium, like everyone else, but as they say, everything is learned by comparison, this is no exception, so I use the remote control with the same frequency, this battery worked for almost 3 years. Others work less, for example, Camellion, I tried it - but that’s another story, so Sony’s quality is worth the money, even if it’s more expensive, but you’ll have to buy it less often, and you can save on time of use. But it’s up to everyone to do what’s best; I won’t rush into it myself.

technodrome

https://otzovik.com/review_2455562.html

I would like to share my experience of using lithium batteries type CR-2032 from Camelion. For almost 5 years I have been using these batteries in a variety of electrical appliances (floor scales, kitchen scales, an additional key fob for a car alarm, a adding machine, etc.). I have a desktop computer for more than 8 years and recently I haven’t used it often and the lithium battery of this type on the motherboard, which is responsible for saving the BIOS bootloader settings, has run out. After changing the battery I forgot about this problem for more than a year. Batteries are sold in a package of one battery. The cost is within 40 rubles, but the quality does not suffer. On the reverse side are written safety precautions and information about the manufacturer. The batteries have the best balance of quality and price.

How to disassemble a Volkswagen flip key, instructions & | iaarus.ru

The key has a high-quality body and the latches hold it tightly, but do not break.

Package from Aliexpress: Volkswagen flip key

To do this, having correctly placed the button and holder, and having aligned the spring with the grooves in the button and the cover, you need to turn the cover counterclockwise, without moving the halves far apart. We drill a tiny niche in the hole in order to get to the pin. Today, electronic central locking technology takes all the initiative.

How to disassemble a switch key? Housing replacement Added: 2 months. Replacing the battery in a Volkswagen key...

The key is disassembled by partial destruction: The day is not far when the car will be controlled not by a person, but by a computer. I did everything according to the instructions from the Golf Club and it seems like I ended up being a little more thrifty.

In addition, it looks more stylish than the protruding tip of a standard key.

I didn’t apply any force, the alloy was simply “tired.” It’s good that it’s near the house... What does the guarantee have to do with it?

How to disassemble a new Volkswagen flip key

And it doesn’t have anything to do with it, it’s not a fact that they would have changed it, it’s just an emotion: I rejected the option of ordering a blank and registering it in the dashboard at the OD right away, there are no extra X rubles!

Unlike the old type of miscarriage, where you just need to unscrew the bolt under the logo, everything is more complicated here.

Flip key disassembly process

The key is disassembled using the method of partial destruction: I did everything according to the instructions from the Golf Club and it seems like I ended up being a little more economical. I got a key on sale, exactly the same type with a pin, link below.

It was possible to order it in China, but it’s not much cheaper for our version, where the board and the immo chip are a single whole, plus I wanted to look at it urgently and before purchasing. Ours is broken and a decent Chinese non-original, at first glance the dimensions of the tip holder are the same: I tore off the sticker - it got a little scratched, it fits tightly, uncritically.

I sealed the “no-drilling” zones for safety, so as not to mix them up in the process: I drilled with a Dremel, first strictly in the center to feel the pin, then went towards its end, a little at a time. If you go too far behind the pin, the board will be drilled, see photo below.

And here the pin shines as a dot at the bottom of the hole: I drilled to the end of the pin and began to push it towards the exit. Then the difficult procedure of halving, a quote from the original instructions: The key has a very high-quality body and the latches just hold it tightly, but do not break.

Therefore, we do not tear the gap between the halves, but rest against the internal elements of the body and tear them away from each other. These days, the fashionable Smart Key system is gaining popularity, which allows the car owner to unlock or lock the doors at a short distance without pressing a button.

The essence of the technology is that the internal chip of the key contains an encrypted code that, using radio waves, recognizes a special sensor in the car. If the signal matches what is stored in the computer base, then the doors automatically open.

Video on this topic

However, the keyless entry function is installed mainly on expensive cars with a price tag of 1 million. But when purchasing a top-end Highline, dealers give the buyer two folding keys at once.

Of course, with a flow pattern it is more reliable and comfortable. In addition, it looks more stylish than the protruding tip of a standard key. A very unpleasant moment, especially if the car is located away from home. Guide to self-disassembly and modification of the key In each of the above cases, to implement the idea, it is necessary to disassemble the key body.

How to change the battery in the key of a Volkswagen Passat, Touareg, etc. | mk-soyuz.rf

If the battery in your car key fob runs out, you can contact a service center to replace it. But since any device of this type has a simple design, you can independently figure out how to change the battery in a Volkswagen key without turning to the services of professional technicians. In general, the principle of replacing batteries is simple and should not cause serious difficulties.

Replacing the battery in the Passat key fob

Replacing the battery in the key for Volkswagen Passat B6, 7 and other models begins with the fact that you first need to remove the service key. To remove it, you need to find a small button on the side of the key fob, press it and pull the device towards you. After this, you should carefully remove the chrome trim by carefully moving your finger to the left of the VW logo.

The chrome trim is removable and there is a small hole underneath it. Now you should also carefully pry the case up with a small screwdriver or an unbent paper clip. It should be borne in mind that the case is latched. After a characteristic click, the case moves and a battery compartment is revealed inside.

After locating the battery compartment, it becomes clear how to change the battery in the Volkswagen Passat B6 key and similar models. It’s not difficult: we remove the old element, replace the battery with a new “tablet” and assemble the key fob in the reverse order. The main thing is to take your time and be careful not to damage the fragile plastic elements.

As for the battery itself, you should buy “button” lithium batteries, which are suitable for all key fobs, including those for Volkswagen Golf. These are three-volt CR type power supplies (CR2016), which can be purchased at any store or ordered online.

Volkswagens of various modifications (Golf, Passat) have keys that need to be opened either from the side, or the key fob can consist of two parts, which, when opening, should be pulled with force, but very carefully, in different directions, after holding the button. A wide flathead screwdriver will come in handy to pry the lid up.

The Touareg has the key

The design of this key fob, at first glance, seems more complicated than that of the Passat, but, in fact, replacing the battery in the Touareg key is carried out in a similar way.

First, as usual, remove the spare key by pressing the Volkswagen logo. After this, you will have access to the holes, into one of which you can carefully insert an unbent paper clip. This way the cover is removed (in this case, it is located on the side). We recommend watching the video below, everything is shown clearly there.

Replacing the battery in a Volkswagen Touareg key is simple: the compartment lid is opened with your finger, and the old battery is removed from the compartment and replaced with a new one. Next, the compartment is installed in place, and the key fob is assembled in the reverse order: first the cover (until it clicks), and finally the key is returned to its place.

Any key fob, regardless of differences in design, is so simple that it is not at all necessary to contact a service center to replace the battery. If you want and are careful, you can do this yourself.

Guide to self-disassembly and modification of the key

Of the tools, the most suitable candidate for drilling would be an engraver. Carefully pick up the corporate logo with a knife and tear it off.

We drill a tiny niche in the hole in order to get to the pin. We insert a thin screwdriver between the two halves of the case and carefully push them apart. If the tip holder is broken, it can be removed from the blank and placed in its original socket.

The main difficulty during assembly is to correctly place the button with the holder and align the spring with the grooves on the cover.

To disassemble a car key you need:

- bright light source; — a set of clock screwdrivers; - wire cutters; - alcohol or cologne.

Find out which key you have. You also need to consider the purpose for which you want to disassemble your standard key. Typically, this need arises when the factory key breaks. A simple replacement is not enough, since there is a chip inside the case that activates the immobilizer. This small chip must be embedded in the new key.

Inspect the surface of the key. If there are gaps, try to open the case by inserting a knife blade into them. If the case is cast, you will have to carefully cut out the microchip. To do this, find out its exact location. You can try holding the key up to a bright light source. If the plastic is translucent, then carefully trace the outline of the chip, which will appear as a dark spot in the light.

Refer to your owner's manual. It may indicate the exact location of the chip in the key. Also visit the forum dedicated to your model. Surely someone has already encountered a similar problem. Begin to carefully separate the plastic of the key body with pliers. Be very careful! Do not touch the chip with wire cutters under any circumstances! This may lead to its disruption.

Separate the remaining plastic with a knife. Wipe the surface of the microchip with cologne or alcohol.

Disassembling a switch key is much easier. Turn off your alarm to avoid false alarms. Carefully peel off the sticker with the brand logo from the key body. It is best to purchase a new sticker in advance so that you can replace it when reassembling it.

Find the small bolts that hold the body in place. Carefully unscrew them, remembering the exact location. Use the end of a flathead screwdriver to pry up one of the housing parts and carefully remove it. Inside you will see a small microchip. He is responsible for controlling the immobilizer. Take it out.

Disconnect the key blade along with the ejection mechanism. Remove the buttons. The key is completely disassembled. Reassembly should be done in reverse order. Disassembling a car key is not difficult, you just need to apply a little care to the process.

The instructions are suitable for all Passat bodies up to 2005. Afterwards they began to produce other keys.

Why are we taking it apart?

Many people will find it useful to know how to replace the battery. Some people need to get a microchip to reinstall into another key body.

Let's disassemble There is a general diagram for dividing the case and the location of the battery.

Using a flat-head screwdriver, we separate it at the junction of the two parts, from the inside.

With a light force, pull one half out of the other and the key will separate.

The chip is located in the part with the discharge mechanism - let's get it out.

Unscrew the small bolt on the back side.

Now we just divide it in half along the seam. You need to make an effort - there are latches.

The mechanisms with the key blade itself will fall out; the second half will contain a chip in a recess. It is easy to get out with a screwdriver.

The second part contains the battery and microcircuit. Use a screwdriver to split the housing in half.

If you apply force, the parts will fall apart, now you can easily change the battery.

The board is not fixed in anything in the case; you can simply pry it and it will fall out of the case.

All details are included.

We disassemble the key for Volkswagen Passat B5 1996-2002

The instructions are suitable for all Passat bodies up to 2005.
Afterwards they began to produce other keys. Why are we taking it apart?