Self-replacement of the VAZ 21099 door lock cylinder

Welcome! Want to learn how to properly replace a trunk lid lock? If yes! Then, in this case, we have prepared an article especially for you, after reading which you can easily replace the trunk lock on cars of the Samara family. The duration of replacing the trunk lock will be around 10-15 minutes, but if this is not the first time you are doing this work, then you can do it in 3-5 minutes. The entire progress of the work will be in photographs, making everything very clear to you.

How to open the trunk of a VAZ classic without a key

How the trunk lock on the VAZ 2107 works and what it is is already known. It remains to figure out the question of how to open the trunk of a VAZ 2107 without a key, since you often have to deal with the need to dismantle the device.

If the rear compartment lid slams shut, you will need to use a spare set of keys to access the compartment. If you cannot find the keys, then there is an option to contact specialists who will help you open the device within 5 minutes. However, for these five minutes you will need to pay a lot of money, and besides this, you still need to find a good specialist.

If the key is left in the luggage compartment, you can get to it from the passenger compartment. To do this you need to do the following:

1. From the interior, disassemble the back of the rear seat, for which you just need to dismantle the back.
2. Remove the fiberboard stand to create a gap through which you can get to the keys in the compartment.
3. To do this, you need to use a hook made of steel wire of the appropriate length to reach the key, hook it and remove it.

This is the easiest and most painless way to open the lid without deforming the car.

If the key is lost, then there is no point in getting into the luggage compartment. To do this, it is recommended to take a powerful flat screwdriver (one with a blade instead of a key in the cylinder), insert it into the cylinder (maybe hammer it in there a little) and forcefully turn it towards opening the lock. But this option should be used as a last resort, since the larva will then be unsuitable for use.

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There are also such ways to open the trunk lid:

1. Tap your fist on the location of the license plate. This barbaric method helps in 30% of cases. It all depends on the force of the impact, so if you are tired of trying to open the trunk lid, then use this method.
2. Use an awl or knife to pierce the rubber seal. Try to reach the lock tongue through the rubber seal, and by sliding it to the side, open the trunk lid.
3. Try using any other key (from another car, house, garage) that is suitable in size. There are times when this works.

Which option is better depends on the situation. In any case, coping with such a problem will not be difficult. To make sure you don’t have to try to open the trunk on the seven, you should regularly monitor the quality of the mechanism, apply lubricant and change the cylinder.

Ways to remove trunk lock

A car trunk is a specific space in the cabin that is intended for transporting goods. The lock that is part of the central locking system, although a reliable element, can sometimes fail. The method described above of getting into the trunk of a car through the interior and then opening a faulty lock is, of course, good. However, due to the design features of some cars, it is not always possible to use this method.

It is best suited for station wagon models where there are no dividing partitions. But owners of sedans were much less fortunate.

In any case, it is very important to determine the reason why the trunk lock is jammed. And as already noted, first of all, breakdowns are associated with dirt getting into the mechanism. In addition to this, foreign objects can get into the lock. If your own attempts to pull out a foreign object or clean the mechanism of dirt do not lead to anything, then you will have to sign up for one of the car service stations, where experienced specialists will perform a series of manipulations with the faulty lock to return the mechanism to normal operation.

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However, it is not uncommon for the problem of a malfunctioning luggage lock to be associated with temperature changes outside the window. This problem becomes especially relevant after visiting a car wash during the winter months. Moisture is not completely removed from the sealing rubber and, when frozen, leads to the fact that the luggage compartment lid does not open. Naturally, in order to solve the problem you do not need to go to the service center. It’s enough just to find a warm garage or box, drive the car into it for a few hours and, after thawing the rubber band, remove any remaining moisture from it.

It is important to remember that any work must be carried out without panic and with appropriate care. Only in this way can you get a high-quality result and save yourself from additional financial costs.

If the trunk lid lock is completely jammed and none of the possible solutions to the problem does not help, then you will have to open the door from the passenger compartment. This option is well suited for people with a medium or thin build. But what should a person whose height reaches two meters and whose weight exceeds a hundredweight do? Such people will have to ask for outside help. But, in any case, you also need to know how to open the trunk lock from the passenger compartment. In the first option, to independently carry out the measures that allow you to open the lock. In the second option, to correctly advise the person who will be doing this.

To solve the problem, you need to get into the car through the left rear door. We lay the backs of the rear row seats on this side. Through the resulting “window” we pull out all unnecessary objects from the trunk, which in the future may interfere with free access to the lock mechanism. To work, you will need to find a long flat-head screwdriver, a wrench, and an asterisk-shaped socket wrench. To gain access to the locking mechanism of the trunk door, you will have to move the decorative trim to the side. It is almost impossible to completely dismantle it with the tailgate closed.

The casing is secured using plastic latches and several screws that are screwed into the metal base. Both screws are located in the corners of the casing and several more fasteners must be found in the handle located on the panel. To remove fasteners, you will need the help of a wrench and an asterisk wrench. We will need a screwdriver to quickly and accurately remove the decorative panel from the door.

First of all, we unclip the fasteners that are located at the top of the casing. Now we carefully move down, disconnecting each latch. As soon as the panel is moved to the side, a wire lever will be revealed in all its glory, which is the main tool for unlocking the button and opening the lock mechanism.

This part is in a vertical position and very close to the windshield wiper motor. To finally unlock the button and open the tailgate, you need to simultaneously press the lever and push the door out. If the lever does not respond to the applied efforts, you can use a hammer with a wooden handle. It is with the handle that you need to press the lever and the door will open.

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The final stage of the work consists of completely dismantling the trim and searching for the reasons why the trunk lock could be jammed. If you can find the cause, then it will be possible to repair the faulty mechanism. Otherwise, the lock will have to be completely replaced.

As it becomes clear, the problem with a faulty trunk lid lock can be solved in the shortest possible time, and it does not require the help of specialists from the car owner. The most important thing is not to try to open the lock with excessive physical force or using improvised tools. In addition, in the process of dismantling the casing, great care is needed in your actions so as not to break the decorative element.

Door lock device VAZ 21099

The auto parts store for VAZ sells locks with cylinders and the cylinders themselves separately. There are no complaints about their quality. In some cases, drivers change the entire lock. This repair takes longer than replacing the cylinder.

It should be remembered that the key is already inserted into the purchased cylinder. It cannot be removed. Otherwise the mechanism will fall apart. It will take a lot of time to put it back together. A door lock consists of three main elements:

• external door handle with cylinder;
• internal lock mechanism;
• internal door handle with cylinder.

If your car has electric windows, then before replacing the cylinder, you need to remove the terminals from the battery.

To replace the larva you will need:

• Screwdriver Set;
• a set of small keys or heads;
• small hammer or awl;
• pliers;
• new door lock cylinder;
• lubricant

Removing the old lock

The lock cylinder is firmly driven into the mechanism, and therefore it will not be possible to replace it without completely dismantling it.

Prepare the following tools:

• 8mm socket wrench;
• set of Phillips screwdrivers;
• marker.

First, remove the tailgate trim. It is installed on 10 plastic clips. Underneath it is the protective casing of the lock itself - unscrew the screws holding it in place and remove the element.

Next, you need to outline the locking mechanism with a marker and unscrew the nuts holding it with a wrench. Later, installing the lock along the marked contours will make it easier to adjust, or even with a successful combination of circumstances will make this procedure completely unnecessary.

To prevent wires hidden under the upholstery from interfering with your work, move them to the side and temporarily glue them with a strip of electrical tape. Remove the lock from the pins and inspect it for damage; if there is any, it will have to be replaced.

Replacing the door lock cylinder

1. The door trim is removed. To do this, use a screwdriver to remove the window lifter handle, the interior door handle, and the trim on the handle that opens the door. The bottom shelf of the door is removed. To do this, unscrew all the retaining screws. The top door lock button is unscrewed. The casing is secured with pistons. They need to be carefully bent. If you break several pistons, the trim will still knock while driving.
2. The rods are unhooked from the lock of the outer and inner handles.
3. Use a small wrench to unscrew the nut securing the outside handle to the door.
4. The outer upper handle is removed along with the rods.
5. Using a screwdriver or an awl, the pin is pulled out, which locks the lock's lever. You can gently knock it out with a small hammer.
6. The lock leash is removed from the handle.
7. The lock cylinder spring is removed using a screwdriver.
8. The key is inserted into the old cylinder and turned, and then removed along with it. If there is no key or a foreign object is stuck inside the cylinder, you can pry it off with a screwdriver.
9. The hole into which the larva is inserted is lubricated with lithol.
10. The new cylinder along with the key is inserted in place of the old one.

All parts and mechanisms are installed in the reverse order.

Removing the lock, drive and latch of the trunk lid

To remove the lock, remove the four pistons by prying them off with a screwdriver.

. and remove the lock drive trim.

. disconnect the rod from the lock drive.

Squeezing the clamps, disconnect the lock wire block from the rear wiring harness block. We use a marker to mark the position of the lock relative to the trunk lid.

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Using a socket or a 10mm wrench, unscrew the three nuts securing the lock.

Remove the trunk lock with rod and wires. We install the trunk lock in the reverse order according to the previously marked marks. To remove the lock drive, disconnect the lock rod from the drive (see above).

We use a marker to mark the position of the lock drive relative to the trunk lid.

Using the “8” socket, unscrew the two nuts securing the lock drive to the trunk lid.

Remove the lock drive.

Using a screwdriver, remove the retaining ring.

Remove the pressure lever.

. and remove the lock.

Remove the pusher with the washer and spring.

We take out the cylinder lock mechanism. We assemble and install the lock drive in the reverse order according to the previously applied marks. To remove the lock retainer.

. Using a Phillips screwdriver, unscrew the two screws securing the clamp.

Remove the lock. We install the clamp in its place and tighten the fastening screws without tightening them completely. Close the trunk lid and then open it. The latch must take the correct position, therefore, without moving the latch, tighten the screws that secure it.

In order to gain access to the rear door (trunk) lock, you first need to remove the inner plastic trim, which is attached to two bolts at the handle attachment points and latch pins, which are pryed off with a flat screwdriver and removed.

Main reasons

The most common reason why the trunk lock is jammed is that the mechanism is clogged with dirt or dust.
Dirt can get into the lock directly from under the wheels of the car, because a so-called vortex appears in the rear part of the body while driving, which can pick up snow, water or dust from the road surface. And even a special lock protection screen cannot help you avoid trouble, because the particles are so small that they can easily penetrate inside and damage the mechanism. Some vehicles are equipped with a central locking system, which is responsible for locking each door at once. And very often the reason for the inability to open the trunk lid lies in the malfunction of the electric drive, which is responsible for the operation of the latches of the lock mechanism. The problem in this situation can be solved in a fairly simple way. It is enough to insert a simple key into the keyhole and simultaneously turn it clockwise and press the button to open the luggage compartment. However, the same situation as described earlier may arise. Then to open the trunk you will have to get to the lock through the interior.

In addition, it may not be possible to open the trunk lid due to a banal failure of the lock mechanism itself. In such a situation, only skills and knowledge that allow you to unlock the door from the inside can help.

Typical faults:

• tightness of locking the door;
• increased noise when opening/closing;
• the central lock does not lock the door and does not respond to signals;
• unlocking is accompanied by a creaking, metallic grinding sound;
• While driving, the door vibrates, cracks are visible in the places of contact with the standard seal.

Common causes of premature wear:

• failure to comply with the deadlines for technical inspection, preventative maintenance, lubrication, and replacement of worn elements;
• third-party mechanical damage resulting in deformation of the door or lock;
• manufacturing defects at the factory;
• the lock has become loose due to loosening of the fastening;
• violation of the adjustment algorithm;
• human factor: systematically locking the door with force.

The defect is eliminated by replacing the constipation assembly.