Adjusting the trunk lock
Operating a vehicle with the lock settings disabled seriously complicates closing the luggage compartment. If the adjustment is incorrect, closing the lid requires significant physical effort, which can result in damage to the fasteners, glass or gas stops. Attempting to forcefully close the lid will not lead to normal operation of the lock, so adjustments are required. Having step-by-step instructions will allow you to complete this procedure in a matter of minutes.
Useful: Trunk volume of VAZ 2114
The photo below shows the adjustment plates that allow you to set the optimal position of the lid. If you remove them completely, you won’t be able to close the door. If you put several plates, a backlash will form. In this situation, you need to look for a middle ground.
The design of the lock on the “four” assumes the presence of a so-called “fang”, which locks the trunk door in one position. The malfunction of this “fang” is caused by the quality of the material from which it is made. The silumin locks in the “four” are a clear miscalculation of the engineers. When driving on bad roads and carelessly closing the lid, the latch often breaks off. If all structural elements are in place, but the door does not close, adjustments should be made.
To set the lock gaps yourself, you will need the following tool:
- Screwdriver;
- Key to 8;
- Pliers if necessary.
The step-by-step process for adjusting broken settings looks like this:
- Remove the decorative plastic trim from the trunk lid;
- Unscrew the fastening nut of the locking device using the “8” key, and then disconnect it;
- Often, to restore the door to close normally, you just need to tighten the nuts of the device. It is also a good idea to check the condition of the spring. If it is stretched, replace it;
- Next, move on to the lower structural element - the latch. Unscrew the nuts securing the clamp together with the plates. Manipulate the correct position of the latch and, if necessary, check the closure several times.
If there are mechanical failures in the lock, it should be completely replaced. The cylinder inside the device is also beyond repair, so it is better to have a new mechanism on hand.
An understanding of why the trunk lid on a VAZ 2114 does not close will appear only after removing the trim and checking the condition of the structure. Without removing the decorative plastic trim, you can only visually determine the presence of a malfunction. You can also tighten the latch nuts to secure the fastening.
If the condition of the structure is normal, check the condition of the hinge on the trunk threshold. If the door slams forcefully, there is a risk of denting or completely breaking off this hinge.
If it breaks, the problem will have to be solved by welding or purchasing a new hinge. Also, due to a poorly adjusted device, situations occur when the trunk opens while driving on a VAZ 2114. This can be solved by checking the condition of the spring, “fang” and hinge. Extraneous sounds and loose door fit are the result of severe wear of the adjacent seals on the body. Their cost is low, so they can be replaced periodically.
Renault Logan device?
Renault Logan trunk - thanks to it, this car was able to overtake many competitors in popularity. Its displacement was developed taking into account the possibility of loading large cargo. To achieve a truly record-breaking luggage compartment capacity without compromising driving performance and passenger comfort, a truly gigantic amount of work was done! The changes affected not only the internal space. Thus, the height of the trunk lid was reduced, and its upper part acquired a kind of “superstructure”, reminiscent of a spoiler.
Renault Logan trunk
The most interesting thing is that the trunk lid does not include any torsion bars. Two springs are responsible for its raising and lowering. Moreover, it is even possible to adjust their force! To do this, you just need to move the end of the spring into the corresponding hole on the bracket, which is fixed to the body. As they say, the comparison here is clearly not in favor of Russian engineers.
However, there are disadvantages here too. For example, the luggage lid fastening loops have a fairly large radius of movement, and therefore can touch things in the compartment. The next “trouble” is the trunk lock, which, unfortunately, is quite delicate, and if handled insufficiently carefully, it can either jam or not latch at all. Fortunately, this shortcoming can be eliminated quite easily. If you have plumbing skills, fixing it will take about an hour. If you don’t have any skills, it’s quite possible to replace the “native” lock with the same or a similar one from Lada Kalina. The latter, by the way, will be cheaper. Well, for those who spare no expense on their “iron horse” and value their time, it is still better to turn to the technical center for help.
Luggage lid mounting hinges
To prevent similar, albeit minor, but nasty “surprises” from happening, the owner of the Renault Logan just needs to adhere to certain rules when using the trunk:
- periodically lubricate the lock, especially when preparing the car for the next season;
- The trunk lid must be closed without excessive force or impact;
- do not allow the trunk to be filled with cargo whose dimensions require closing with force, as well as with objects that significantly exceed the carrying capacity. The fact is that deformation of the body may occur, which will disrupt the sealing and tightness of the lid.
https://youtube.com/watch?v=2AuuUYIyr3I
Replacing the trunk lock
Useful video:
In a situation where replacing the spring or treating the lock with chemical lubricants does not help, the device should be completely replaced. The price of a new luggage compartment lock for a “four” is about 300-500 rubles. If after installing a new part the trunk does not close, make adjustments. The step-by-step process for installing a new locking mechanism looks like this:
Once the old trunk lock has been removed, you can begin installing the new one. When reassembling, do not forget about the previously removed terminals.
After completing the adjustment or replacement, treat the structure with protective chemicals. If the seal does not fit tightly, moisture often gets in there, which quickly damages the structure.
Basic faults
The main trunk problems that the owner of a VAZ car may encounter include:
- inability to close the trunk - the reason for this is most often the misalignment of the guides or the locking platform;
- inability to lock the trunk - the reason for this, as a rule, is the bursting of the lock mate, made of silumin;
- the appearance of cracks - can occur either due to skewed fasteners or due to damage to the door frame itself;
- the appearance of squeaks during opening/closing - occurs, most often, due to wear of the seal.
Warp trunk of VAZ 2114
To eliminate them, you need to dismantle the trunk and replace worn elements (and in some cases, for example, with a general misalignment, a simple door adjustment is sufficient - we will tell you how to adjust the trunk on a VAZ 2114 at the end of the article).
Repair features
If the central locking of the VAZ 2114 has stopped working, then you need to conduct diagnostics and find the cause of the breakdown (the author of the video is Nikolay Bogdanov).
Then carry out the appropriate repairs. Problems with central locking on the VAZ 2114 most often arise at low temperatures and high humidity. The reason is the locks with solenoids that are installed from the factory. It is better to replace them with locks with an electric motor.
If the drive is not working on only one door, it is necessary to check its electrical circuit for an open circuit by testing it. Most often, broken wires are located in the corrugation. Since the doors are opened and closed frequently, the insulation cannot withstand the load. The break is restored by replacing the wire and connecting the broken sections using female-male terminals.
If there is no break, the cause may be a failure of the control board or switching relay. The winding of the motor or solenoid may burn out, and the drive gears may wear out. In this case, the door auxiliary drive may need to be replaced.
Replacing the cover yourself
To remove the trunk door you will need:
- knob;
- set of socket heads;
- slotted screwdriver;
- set of open-end wrenches.
Before starting work, you should disconnect the ground terminal (negative) from the battery in order to eliminate the possibility of a short circuit.
Replacement procedure
The replacement of the VAZ 2114 trunk lid itself is carried out in the following order:
- Open the tailgate and secure it with a suitable size prop.
- Using a flat-head screwdriver, pry the mounting location of the upper hinge of the gas-filled stop, press it inside the trunk and disconnect it.
Removing the upper trunk mount of a VAZ 2114 - Using a flat-head screwdriver, pry up the lower fastening of the gas-filled stop and also disconnect it.
Removing the gas stop - In a similar way, remove the second gas stop.
- Unscrew the fasteners and remove the brackets used to secure the stops.
Unscrew the brackets - Check the condition and straightness of the stops themselves - if they are bent or deformed, then you should purchase new ones and install them during reassembly.
- Using a slotted screwdriver or a special puller, pry and remove the 10 pins securing the tailgate trim.
- Remove the trim.
Removing the casing - Disconnect all terminals and wire connectors connected to the trunk door.
Disconnect the terminals - Remove the wiring harnesses from the cover.
Removing the wires - Remove the trunk lining fasteners.
- Unscrew the fastening elements of the lock and remove the lock.
- Using a puller or a flat-head screwdriver, pry and remove several pistons securing the rear edge of the interior headliner.
- Bend the detached edge of the casing so that it does not interfere with further dismantling of the cover.
- In the opened technological cavity, find the nut securing the terminal and unscrew it (it is best to use a socket wrench or a socket with an extension).
- Remove the terminal.
Remove the terminal - On each side of the upper rear part of the cabin, find and unscrew a pair of fastening nuts holding the trunk hinges.
Unscrew the trunk lid hinges - Remove the trunk lid.
When disconnecting the wiring harness connectors that go to the trunk, be sure to mark them with colored markers or electrical tape to avoid possible problems when connecting them.
After the trunk door is removed, you should carefully inspect the condition of its hinges - if they or their fastening elements are skewed or have cracks, then they should be replaced.
It is produced as follows:
- Remove the gaskets from both hinges.
Removing the hinge pads - Using a socket wrench or a socket with an extension, unscrew the pair of mounting bolts holding the hinges in the door.
Unscrew the hinge mounting bolts - Remove the hinges and the gaskets installed under them.
Dismantling the hinges with gaskets - Install new gaskets and hinges, then secure them.
Reassembly and installation of the tailgate is carried out in exactly the same order as disassembly, but in reverse order.
Withdrawal procedure
Depending on the reason, a complete or partial replacement is performed. It is not recommended for the average person to engage in reassembly, since there are too many nuances in this process, but almost anyone can replace the mechanism. Step-by-step instruction:
- Three screws are unscrewed. They are located on the inside of the handle. To do this, use a Phillips screwdriver to remove the cover.
- The front trigger glass position switch is removed along with the wiring harness block. To do this, the wires are first disconnected.
- The plug on the armrest handle is removed, the element is picked up with a thin corner of a screwdriver.
- Unscrew the 2 screws on the handle that hold the inner panel.
- The plastic clips are pressed out to remove the lining.
- 6 pistons are removed to remove the door card.
- The external fastenings are removed, the nuts are unscrewed with an 8mm wrench.
The last action is to gain access to cravings.
Adjusting the trunk lid
Having talked about how to replace a door with your own hands, we’ll also tell you how to adjust the trunk lid on a VAZ 2114 after installing it.
Checking the trunk lock cylinder of a VAZ 2114
To do this you will need:
- in the closed state, outline the approximate location of the symmetrical location of the lock and its latch;
- loosen the fasteners, and then fix the lock and its counterpart in the new position (you should not tighten the fasteners “to the fullest” - it is enough only for the lock parts to maintain their position);
- check the functionality of the trunk - if it opens and closes, unlocks and locks without problems, then you should finally fix the position of the lock, but if difficulties arise or a misalignment is observed, the fasteners should be loosened and the position of the lock and latch should be adjusted, and then repeat the check.
Thus, almost every driver can independently repair or replace the trunk lid of a VAZ 2114. The most important thing is not to put off this event “for later”, because when the first signs of distortion or difficulties when locking appear, you can get by with simply adjusting the lock, whereas if the latch bursts, the entire device will need to be replaced.
Why adjust doors?
The door of a modern car should close silently, with a slight push. Understanding that adjustment is required will come if the cause of the breakdown is identified:
- The hinges are in the wrong position - the parts are checked for mechanical damage.
- The gaps between the door and the body part have been increased - poor adjustment was previously carried out.
- The door handle or lock needs to be replaced - the fasteners are poorly secured.
- Body deformation occurs as a result of an accident, locksmith work, or improper installation of the door card.
Solution #1 - Adjusting the lock
During normal operation of the trunk door lock, the problem with its arbitrary opening on bumps does not arise. Because Adjustment of the lock installed from the factory is carried out by tightening the nuts; over time, they relax and the door no longer holds normally.
With a poorly configured trunk closing lock, the problem of extraneous knocks and squeaks when driving occurs. If the trunk of a VAZ 2114 opens, you should check the condition of the lock and, if necessary, adjust it. The adjustment process is carried out in the following way:
- To close the trunk tightly, you need to adjust the latch located in the center of the luggage compartment shelf;
- The design of the clamp includes adjustment plates. By unscrewing the two bolts securing the clamp, you can change its position and, if necessary, add a plate;
- If the trunk is tightly closed or the fixation is unreliable, you can repeat the procedure and place the latch differently.
Helpful: The trunk won't close - what should I do?
To carry out the lock adjustment procedure, the following tool will be useful: an “8” key, a screwdriver and, if necessary, adjustment plates.
Important. In addition to the loose fastening of the latch, the reason for the trunk not closing tightly and opening it randomly can be the tongue on the lock, which comes off the cotter pins.
The spring in the design is responsible for its normal operation, so a loose lock tongue can cause a malfunction. Reinstalling the tongue into the pins will restore the lock's function.
What will be needed for repairs
If the front door of the VAZ 2114 does not open from the outside, then an analysis of the problem is carried out, based on which the optimal repair method is selected. Most often, work requires:
- key to 10;
- Screwdriver Set;
- hammer;
- pliers;
- Silicone Grease;
- marker;
- knife;
- anti-corrosion substance.
If it is determined that the problem is in the closing device, then a cylinder or a solid lock is purchased. Disassembly will show whether there is a chance to repair or adjust the device.
Solution #2 - Replacing the lock
Low strength of the construction material and strong closure of the trunk door increases the risk of mechanical failure of the lock. To identify the cause of poor door closure, you can visually inspect all components of the structure.
Misalignment of the structure or the trunk lid itself leads to damage to the lock itself and the latch when closing. Common mechanical failures of the element: damage to the latch, breakage of part of the tongue, torn out fastenings of the structure to the body, breakage of the spring.
To eliminate the problem with the door opening randomly, it is worth replacing the assembly structure. Replacement instructions:
You can change the lock yourself on any VAZ model, but on the “four” this procedure takes the least time. If desired, instead of the standard mechanism, you can introduce a design from other VAZ models into the trunk. There are videos on YouTube with a detailed description of the installation of a lock from Granta in the “four”.
If you want to leave the standard design, for its long service, periodically adjust the latch and clean the mechanism from dirt. Also, to maintain smooth operation of the structure, lubricate the parts with lithol. Because this problem is quite common in Samara - many owners of the “four” have to solve it, and the work has to be done with their own hands.
We remove the trim on the doors of the Lada Kalina - what is the complexity of the process?
The car door trim, officially called the door panel, is most often removed to access the window lift mechanism for repair or lubrication. Much less often, this operation is carried out to install speakers, install noise and vibration insulation, replace facing panels or perform body work. But in any case, sooner or later, almost every car owner has to dismantle the door trim. At the same time, many of them, without resorting to the services of a service station, do it themselves, since this operation is quite simple and can be done by most car enthusiasts.
Occurrence of a problem
The new-fashioned body design of many VAZ models was the beginning of problems. In many cars, owners notice unpleasant noises and pops from the rear of the body. These loud noises occur when the car goes over bumps and the trunk door begins to knock. Most likely, this defect resulted from the fact that the car was tested in conditions suitable for travel - on a flat road surface. Under ideal conditions, it is difficult to notice that the locking plate or stem is not in the correct position. In addition, the gap usually appears only after driving on poor-quality surfaces due to vibration that occurs at the joints.
Another reason is wear of the closing mechanism. Because of this problem, the trunk of the VAZ 2114 opens while driving. The same situation occurs in other models. This happens because the locking tooth of the lock is either broken or almost completely worn out. It would seem that what’s wrong with this, because you can go and change the lock for a new one. But the problem will remain unless the approach to it is changed. The main locking mechanism must be replaced with a different type of device.
Also, the reasons that the trunk opens spontaneously while the car is moving may be the breakdown of silumin parts or wear of the seal.
In any case, the mechanism will have to be changed, but to what?
Replacement options
The first option is banal to the point of impossibility - buy a similar lock. Moreover, you will need to buy the entire lock, and not a separate part, because the design of the mechanism is non-separable. Replacement is carried out when the old lock is completely dismantled. This solution should be considered temporary, since the production technology is the same and the problems will remain. Over time, a new lock will have to be replaced. The only positive side of this solution is that it is quite cheap.
The second option involves completely replacing the mechanical lock with an electrically controlled drive. What does this give?
- Secure trunk closure.
- Possibility to control the position of the rear door from the driver's seat.
Installing such a system is not the cheapest pleasure, but the final result will really please the user. The electronic drive is much more convenient to use and is a reliable replacement for its mechanical counterpart.
Dismantling the old castle
Before replacing, you will have to dismantle the old closing mechanism, and this is not so easy.
The VAZ 2114 model will be taken as an example.
The following tools will be useful in your work:
- set of Phillips screwdrivers;
- key to 8.
The replacement sequence is as follows:
- First of all, in order not to damage the interior lining of the trunk, we remove ten plastic fasteners, and then the plastic casing from the lock.
- We remove the casing, then unscrew the nut that secures the lock in place.
- Unscrew the wires that are in the way.
- Next, you need to unscrew the right fastening nut and remove the inner part of the lock from the fastenings.
- You can inspect the integrity of the spring and core. If these parts are defective, then the problem is in the mechanism. In any case, everything will have to be changed.
If you prefer the economical option of replacing it with a new mechanical lock, then install it in the reverse order as described.
Preparatory stage
- impact screwdriver;
- cross bits;
- pliers;
- plastic clips in case of damage to the standard ones;
- liquid for removing rust and corrosion;
- a new lock, the modification is chosen individually by the owner.
Procedure for independently replacing the driver's door lock on a Lada Granta Liftback
- We install the car within the perimeter of the repair area and provide unobstructed access around the perimeter.
- We take priority safety measures when carrying out work. We fix the rear row of wheels with wheel chocks and engage first gear to avoid arbitrary movement.
- Open the driver's door, use an impact screwdriver to unscrew the two screws securing the shackle to the car body, and remove it from its seat. We install a new shackle with soundproofing material.
- Let's start removing the constipation: unscrew the plastic float and remove the stem.
- We unscrew the car door card, two screws, eight plastic clips around the perimeter.
- We disconnect the block with wires from the double-glazed window control unit, speakers, and central locking.
- From the outside, unscrew the three screws that secure the lock body to the door.
- We remove the two rods, having first disconnected them with pliers.
- We carry out preventive maintenance, clean the seat, remove old grease, and apply a thin layer of new one.
- Let's start installing the new lock.
- We assemble the structure in the reverse order, unless there are other breakdowns that require surgical intervention or elimination.
During the installation process, we pay attention to the integrity of the electrical wiring, insulating layer, terminals, and blocks with wires. If there are signs of wear, replace them with new ones.
Do not operate the machine with faulty electrical wiring.
Typical door lock malfunctions
- 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.
Drive installation
Adjusting the position of the trunk lid is possible if, instead of a mechanical lock, you install an electronic device, in this case a drive. To install it you will need:
- universal drive installation kit for the machine;
- metal cable with a cross-section of 1.5 mm and 500 mm long;
- two contact connection wires of 4.5 m each;
- screws with wide heads;
- opening button for the lock;
- retainer;
- fuse;
We install the drive in the prepared place, according to the instructions. Next, you will have to make several amendments to the design:
- We arm ourselves with a 7 key and clamp the bushing on the lock body. Use a screwdriver to clamp the bushing and unscrew the locking screw from the traction mechanism. You need to change the washer to another larger one.
- We make a hook from wire, which we connect to the locking screw directly under the new washer. Then we extend the same wire to the electric drive rack.
- We attach the electric drive relay to the trunk amplifier with self-tapping screws.
- The plate from the kit is connected to the activation device with the lock bolts so that there is a gap of 1.5 cm from the lock tongue to the plate.
- The activator is installed.
- A rod is made from a piece of cable, which is connected to the lock lever, the electric drive rack, the lock tongue and the release mechanism.
- Wires are being laid. The positive contact extends to the control button.
- We connect the device to the battery and install a fuse in its system.
The VAZ trunk is opened by pressing a button that can be installed in the cabin.
The electronic device is adjusted according to the included instructions. All other nuances that should be taken into account when installing the device in VAZ models have been indicated.