How to remove the steering wheel on a Lada Granta with an airbag

How to remove the steering wheel on a grant with a cushion

Driving the Lada Grant requires some protection from the driver and passengers. Recently, airbags were installed in the Russian automobile industry. However, there is one problem: they are disposable, and when it works, they need to be replaced. This process is complex and requires some experience and knowledge. Sometimes it is also necessary to remove or replace a steering wheel that causes cracks or deformation when the driver hits it.
Lada Grant with airbag

Necessary condition for Lada Grant airbag failure:

• Running through the accident.
• Closing a package of pillows that prevented her from discovering a manufacturing defect.
• Battery failure causing airbags to deploy.
• Worn airbag module.

Prerequisites for failure of the Lada Grant steering wheel:

• Deformation of the structure due to the driver’s influence on the steering wheel.
• Hair wear and cracks.
• External causes that caused damage to the steering wheel.

The entire population becomes a prerequisite for a forced change of steering wheel and airbags.

It is believed that only unique steering wheel and airbag parts can be installed on the Lada Grant, but this is a misconception. There are some analogues of these parts, the presence of which is understandable only to tuning specialists and some car owners.

Let's look at the catalog numbers and manufacturers of the Lada Grant steering wheel:

1. The unique VAZ product has the manufacturer’s catalog number - 21910-3402018-00. It completely becomes a place and doesn't even require any improvements in other improvements.

Basic version of the sports steering wheel

Granta airbags

:

The VAZ plant produces unusual spare parts. It consists of several descending parts: a gas generation module (21910-8232010-00) and a safety control unit (21900-3824010-00).

Airbag module

Airbag control unit

Thus, you can realize that in addition to the standard Lada Grant steering wheel and airbags, there are also analogues that are rarely known.

To remove

Lada Grant airbag, you will need a 5 mm rod and a flat head screwdriver. What do you need, let's get to the process:

Causes of airbag failure

The reason for the failure of the Lada Granta airbags is:

• Triggered due to an accident.
• Closure of the pillow package, which prevented it from opening, or a manufacturing defect.
• Battery failure, which caused the airbags to deploy.
• Wear of the pillow module.

Reasons for failure of the Lada Granta steering wheel:

• Deformation of the structure due to the driver hitting the steering wheel.
• Braid wear and cracks.
• External factors that caused damage to the steering wheel.

All this becomes the reason for the forced replacement of the steering wheel and airbags.

Catalog numbers and steering wheel analogue options

It is generally accepted that only original spare parts for the steering wheel and airbags can be installed on the Lada Granta, but this is a misconception. There are several analogues of these parts, which are known only to tuning masters and some car enthusiasts.

Let's look at the catalog numbers and manufacturers of the Lada Granta steering wheel:

The original VAZ part has the manufacturer's catalog number - 21910-3402018-00. It fits perfectly and does not require any improvements or modifications.

Factory steering wheel

One of the sports steering wheel options

Catalog numbers and airbag manufacturers

Let's look at the catalog numbers and manufacturers of Lada Granta airbags:

1. The original spare part is produced by the VAZ plant. It consists of several elements that include: a gas generator module (21910-8232010-00) and a safety control unit (21900-3824010-00).

Airbag module

Airbag control unit

Thus, you can understand that in addition to standard parts for the steering wheel and airbags of the Lada Grant, there are also analogues that few people know about.

How to remove Granta steering wheel

When you have decided to replace the stock Lada Granta steering wheel with a sports one, read the instructions on how to remove the steering wheel yourself. The steering wheel also needs to be removed when dismantling the dashboard, steering column and slip ring.

- 24mm socket head.

- marker. First of all, you need to disconnect the negative cable from the battery. Then set the steering wheel to a position corresponding to the straight-line movement of the car. Remove the driver's airbag module.

Airbag replacement technology

To dismantle the Lada Granta airbag, you will need a 5 mm rod and a flat-head screwdriver. So, let's get down to the process itself:

1. As with any repair, you need to disconnect the minus terminal.
2. Using the rods, you need to tighten the cushion clamps. This is done through special holes, the marks of which are on the side of the steering wheel.

In the places of the marks, press the rod on both sides to unclip the cushion latches

Removing the airbag module

Removing the plus terminal from the horn

Removing the negative terminal of the horn

Removing the wire clamp

We remove the wires from the seat

The nuances of replacement and what should be prevented

As with any car repair for the Lada Granta, when replacing the airbag and steering wheel, there are nuances that need to be taken into account. So, what is worth considering when performing dismantling work:

• Before you begin removing the airbag, it is imperative to disable the control module. If this is not done, then the probability of the airbag triggering when turned off is 99%.
• When the power is turned off, you need to wait until the activator capacitor discharges. The manufacturer recommends doing this after 1 minute, but as practice shows, it may take up to 3-4 minutes, so you should wait 5 minutes.
• Never allow water, oil or other liquid materials to come into contact with the cushion module.
• When installing the airbag, you should be outside the triggering area.
• After installing the airbag, you should turn on the ignition by reaching under the steering column.

Compliance with all the listed nuances will protect against airbag deployment and harm to a person, since in practice there have been cases when neglect of safety precautions became fatal for car service workers.

How to remove the airbag of a Lada Granta

How to properly remove a steering wheel with an airbag on a Lada Granta?

• The seat belt and airbag warning light is constantly on on the instrument panel - 2 answers
• Steering cross housing burst in Grant - 1 answer
• Airbags and recall of a batch of cars - 1 answer

1) place the front wheels straight;

2) using a homemade puller, tighten the antennae of the spring clips on both sides and remove both holders of the airbag module;

3) move the airbag to the side, disconnect the two ends of the wires and use a thin screwdriver to release the wire block retainer.

4) disconnect the wire block from the airbag.

5) Place the airbag away from the work area.

Next, the steering wheel is removed, as on other VAZ cars. The only caveat is the moving part of the slip ring. It does not lock automatically to prevent rotation.

Grant has a special stopper that secures the ring, and there is a special one on the ring itself. hole. You need to lock the ring and do not remove the stopper until you install the steering wheel back.

I decided to share with you detailed instructions for this procedure. It seems like there is nothing complicated here, but there are several points that I came across after reading various manuals on the Internet. As a result, the mistakes I made hit me pretty hard. Namely, I had to change the block of steering column switches. And it costs not much, not little: 1100 - 1300 rubles.

So let's get started. We carry out everything strictly point by point:

1. Disconnect the negative terminal of the battery. After this, you must wait at least 10 minutes. in order for the airbag activator capacitor to discharge. Remove the terminal and wait 10 minutes. !MANDATORY!, if you don’t want to have the consequences of a deployed airbag.

2. You need to release two airbag latches. They are held in place by two spring clips.

Pay attention here! ATTENTION ! to the following: Without calculating, I pulled the pillow towards me and it abruptly jumped out of the additional fastenings. The wire from the airbag is short, and the L-shaped connector of the airbag shattered due to a strong jerk and tension. It is of such a shape and material that it shatters into pieces from any unnecessary effort. Inside it are not just terminals, but also some kind of inductor (like a coil). This piece of wiring with connectors is not sold separately. Only together with the steering column switch block. So take all of the above into account and don’t repeat the mistakes of others. Do everything carefully and slowly. 4. Having freed the Pillow from all fastenings, carefully move it away from the steering wheel.

Perform further actions in strict sequence so as not to break the latch of the steering column switch block, and the block itself.

6. Use a 24mm socket wrench to loosen the steering wheel nut. Do not unscrew it all the way. Leave it twisted a couple of turns. 7. By rocking the steering wheel to the sides and pulling towards you, pull it out of the seat. It will rest against the nut. 8. Align the car wheels and set the steering wheel straight. 9. Remove the latch from the pocket. Aligning the marks, insert the lock into the block of steering column switches, as shown in the photo.

We perform the assembly in the reverse order, paying attention to the important nuances that I indicated earlier.

Operating a Lada Granta car requires certain protection for the driver and passengers. Not so long ago, airbags began to be installed on cars of the domestic automobile industry. But there is one problem: they are disposable and will have to be replaced when triggered. This process is difficult and requires some experience and knowledge. Also, in rare cases, it is necessary to remove or replace the steering wheel, which can crack or become deformed when the driver hits it.

Lada Granta with airbag

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Removing and installing the steering wheel on a Lada Granta car

Let's consider removing the steering wheel with an airbag, since without an airbag, removing the steering wheel is not particularly difficult and is performed in the same way as on models 2108-2110.

To complete the job, you will need a special airbag remover and a new steering wheel nut.

If you don’t have a puller, you can make one from an old slotted screwdriver with a blade width of 5 mm; to do this, you need to make a small groove in the middle of the blade.

1. Remove the terminal from the negative terminal of the battery.

On a vehicle equipped with an airbag, to prevent the airbag from deploying, wait at least five minutes after disconnecting the battery before continuing to operate.

The driver's airbag is mounted on the steering wheel with two plastic hooks 2 and 4, Figure 1, and two positioning hooks 8.

The hooks of the pillow fit into the holes in the bracket for fixation 2 and are fixed with spring clips. The airbag latches fit into recesses 3 on the steering wheel.

We set the steering wheel to the “straight” position and, by removing the key from the ignition switch, fix this position.

Use a thin flat screwdriver to pierce the hole marked on the steering wheel.

We also pierce a hole on the other side of the steering wheel.

Using two screwdrivers, press out the spring clamps through the holes (in the picture with the airbag removed), pulling the airbag towards you, we remove the hooks of the airbag from engagement with the clamps on the steering wheel.

We pull the pillow towards ourselves, overcoming the resistance of the clamps, and remove it from the recesses of the steering wheel.

Move the airbag away from the steering wheel

Disconnect the horn wire ends

Use a screwdriver to pry the clamp out of the wire block

Disconnect the wire block from the airbag connector

Removing the airbag

The removed airbag should be stored in a place protected from moisture and excessive heat, with its cover facing up.

Installing the airbag is done in the reverse order.

We connect the block of wires to the airbag connector, insert the lock into the block.

We connect the wire lugs to the terminals of the signal switch.

We install the cushion on the steering wheel so that the cushion clamps fit into the recess of the steering wheel, and the hooks of the cushion fit into the corresponding holes in the steering wheel.

Press the cushion until the hooks of the cushion snap into place with the steering wheel latches.

In a factory or car service center, plastic wedges are used to remove airbags (Figure 10).

And devices for removing pillows are used (Figure 11).

Place the removed airbag module with the actuator down and away from the workplace.

Set the front wheels of the car to the straight-ahead position.

Using a 24mm socket, unscrew the steering wheel mounting nut.

We mark the position of the steering wheel relative to the shaft, for which we use a core to put a mark on the shaft opposite the triangle mark on the steering wheel

Damage to wiring and connectors

If the airbag light is on on the dashboard, and the diagnostics show an open or short circuit in the ignition circuit of a particular airbag, sensor or switch, there is most likely mechanical damage to the wiring or connector. Most often, as mentioned earlier, this happens due to the fault of people who disassembled something in the car before.

• When removing the driver's airbag, for example before removing the steering wheel, it is easy to damage its fragile connector. Subsequently, this will reveal itself as a fixed open circuit when the steering column cable is in working order;
• when removing the plastic panels before soundproofing the interior, the wiring of the pretensioners and seat belt position sensors may be damaged, and the connectors may not be fully latched during reassembly;
• If the car is equipped with a longitudinal position sensor, the wiring coming from it may become bent over time. In this case, in some seating positions, the warning light on the instrument panel may go out;
• in the same way, the wiring from the presence sensor, which is triggered by a load on the seat cushion, can be damaged. In addition, he himself can be damaged by an excessively massive passenger;
• The warning light also lights up if there is a fault in the connection between the airbag control unit and other vehicle systems. This is especially true for cars where they are deeply integrated into the operation of the digital CAN bus; for example, the inability to read information about the vehicle speed from the ABS controller is considered an error, although the airbag control system itself is absolutely working.

Photo report on removing the steering wheel yourself

First of all, read the material on removing the driver's airbag on a Priora. Then, when you have dealt with this, you can proceed further. Disconnect the power wires to the sound signal.

Then we put the head on 24 and rip off the nut, but don’t unscrew it completely yet. Before you start knocking it off the shaft, you need to mark the position of the steering wheel relative to the shaft - you can make marks on the steering wheel and casing.

When the nut is loosened, leave it on the shaft for now. Then we take and knock down the steering wheel from the reverse side, tapping it with medium force - on both sides.

When it comes off the splines, you can finally unscrew the nut and remove it from the shaft.

Carefully thread the horn power wires, as well as the airbag power wires, through a special hole.

And now the steering wheel is finally freed and you can remove it completely from the Priora.

If there is a need for replacement, then we perform it in the reverse order. Of course, the installation is carried out according to the marks that were originally set. The fastening nut must be tightened with a torque of 31 to 41 Nm. But you can take the average value and tighten it with a force of 40 Nm.

Technological process for replacing a steering wheel

After the airbag is removed, you can begin to remove the steering wheel. So, let's consider the technological process:

Using a marker or other available means, we make marks on the steering shaft and wheel. This is necessary in order to return the steering wheel to its previous position.

General view of the steering wheel without an airbag

Use a marker or other method to mark the steering wheel position

Hit the steering wheel to knock it off the splines

Removing the steering wheel

If you need to change the position of the steering wheel, then you should align the wheels straight and put the steering wheel on the splines. We drive a few meters and look, if everything is satisfactory, then we assemble it in the reverse order, if not, we remove the steering wheel and set it as needed.

How to tighten the electric power steering rack?

The appearance of a knocking sound in the operation of the electric power steering is associated with the need to tighten the steering rack.

How to do it right:

1. First you need to disconnect the battery; to do this, disconnect the terminals from it. Unscrew the battery mount; to do this, you need to unscrew two more nuts located at the edges. After this, the battery is removed and put aside.
2. Then you need to lift the plastic stand, there are four more screws under it, they can also be unscrewed.
3. Having done this, it is necessary to move this stand forward until the platform is disconnected from the air filter housing retainer pad. After this, the trim can be moved back, this will provide freer access to the rail itself.
4. At the next stage, you will need to crawl your hand under the rail. Directly below it, as shown in the photo, there is a rubberized cap; it will need to be removed, this will allow the key to access the adjusting nut.
5. To perform adjustment work, you will need a special wrench to tighten the rack; without it, the adjustment procedure will not be possible. Using this wrench, you need to crawl under the car rail to install the tool in the required hole.
6. When adjusting, be careful not to overtighten the rack. If its tightening is very strong, then when cornering the rack will bite, and this, in turn, may affect the safety of movement. The angle of adjustment is always different, it depends on how much the nut is loose, but usually when performing such work the nut is tightened by approximately 30 degrees. This should be enough to get everything right. After the adjustment is completed, it will be necessary to check that this task was performed correctly. That is, you will need to make sure that the steering wheel turns normally to any position all the way and there is no knocking. If the knock remains, then the adjustment continues.

When might it be necessary to remove the airbag?

The picture shows that the airbag was already in operation, it needs to be replaced!

However, such a driver safety system will have to be removed to perform certain types of work in the following cases:

• when replacing a triggered element;
• when repairing the steering;
• when repairing individual circuits of electrical equipment.

Important points and secrets

When carrying out such work, you must adhere to strictly defined rules and installation procedures.

Attention! To avoid unexpected activation of the airbag during the dismantling process, you should turn off the power supply by removing the negative terminal from the battery. After which, you need to wait another 15-20 minutes for the accumulated energy to leave the activator capacitor. And only after making sure that there are no power sources at all can you begin to disassemble the steering wheel.

Removal sequence

First you need to unscrew two screws on the back of the Priora steering wheel, which are located on both sides. To do this, you will need a 5 mm hexagon, while on both sides it is necessary to compress the spring clamps, preventing the pillow from falling out. It is important to remember that before starting work, you must remove the battery terminals to prevent the airbag from deploying.

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After this, carefully remove the cushion from the front of the steering wheel. To do this, you need to carefully pry the clamp together with the wires and move it to the side, and also disconnect the power wires leading to the sound signal.

Please note that disassembling the airbag module is strictly prohibited.

Next, a pre-prepared 24-millimeter socket will come in handy, with the help of which the shaft nut is torn off; however, there is no need to unscrew it completely yet. At this stage, you need to somehow mark the position of the steering wheel, which will be needed for subsequent assembly to its original position. For this purpose, you can make appropriate marks on the casing or, in fact, on the steering wheel.

Once the nut has been loosened, you can begin to directly remove the steering wheel. To do this, you first need to gently tap it from the back with careful movements on both sides, but you should not use excessive force, because the steering wheel is still on the shaft. By progressively pushing the steering wheel, it is necessary to ensure that it is completely dislodged from the splines, and when this can be achieved, you can further unscrew the previously loosened nut.

After this, you can actually start removing the steering wheel. You need to act as before, carefully, threading the power wires for the horn and airbags through special holes. Upon completion of this procedure, you can finally remove the Lada Priora steering wheel.

In Garage Teaser: Additional glove compartment in the grant from the airbag plug.

View of the steering wheel without an airbag

Use a marker or other method to mark the steering wheel position

Hit the steering wheel to knock it off the splines

If you need to change the position of the steering wheel, then you should align the wheels straight and put the steering wheel on the splines. We drive a few meters and see if what remains to be done suits our client, then we assemble it in reverse order, if not, we remove the steering wheel and set it as necessary.

Techno diagram for disassembling parts for installing a sports steering wheel

An additional option for mounting the steering wheel is the installation of a sports steering wheel. It should be noted that in solving this issue, in cases where the driver is deprived of an airbag, this function will be performed by a safety adapter.

Safety adapter and fastenings to it

What is needed, let’s look at the process of installing a sports steering wheel on a Lada Granta:

1. Since we have nothing left for our client to do, we first install the adapter. We attach it to the control shaft, but do not secure it.
2. We connect the signal wiring to the control adapter. We insulate the airbag unit wires and leave them inside the adapter.
3. We install an adapter on the slots. It will function instead of airbags, since upon impact it simply deforms and does not injure a person’s chest.
4. We specifically screw on the tuning control wheel.
5. The final step is to check the steering wheel position. We drive forward and backward, if the steering wheel is not level, then remove the adapter and align it.

In this way, they will tune the steering wheel of the Lada Granta. It should be noted that if a sports steering wheel is installed, then you should definitely use seat belts.

Installed sports steering wheel with adapter for Lada Granta

It is worth keeping in mind that our client should only do the operations to replace the steering wheel and airbag strictly according to the instructions. Especially in terms of assembly. Since one inconvenient movement triggers the airbag, all operations will have to be done again. There are cases where it may be necessary to “reset” the codes of the on-board vehicle, which may not recognize the latest security system.

Passenger airbag

The passenger airbag module (PAIBP), Figure 13, consists of a gas generator 1, a housing 3, with an airbag folded in it, and a facing cover 7.

The gas generator consists of a housing filled with compressed inert gas and a pyrotechnic substance, and an igniter fuse.

An igniter is a device with electrical resistance and a pyrotechnic substance.

After receiving an electrical signal from the control unit, the electrical resistance heats up and ignites the pyrotechnic substance of the igniter, followed by ignition of the bulk of the pyrotechnic substance of the gas generator.

Removing the passenger airbag

We remove the instrument panel as described in the article - How to remove the instrument panel of a Lada Granta.

Disconnect block 1, Figure 14, of the instrument panel wiring harness from the MNPBP.

Using a 13 socket, unscrew two bolts 4

Press the clamps 5, disconnect and remove the passenger airbag module

Place the failed module on a flat surface with the facing cover facing up.

Installing the airbag module

Before installing the module, you must ensure that there is no damage.

Install the airbag module in reverse order

The tightening torque of the two bolts securing the airbag module is 13 – 15 Nm (1.3 – 1.5 kgcm).

Purpose and operating principle of SNPB

The airbag system is an additional means of protecting the driver wearing a seat belt and is designed to reduce the severity of his injury during frontal (±30 degrees) vehicle collisions in traffic accidents. SNAP is triggered depending on the force of the vehicle’s collision with various obstacles.

The airbag system begins to function after the ignition is turned on and is controlled by an electronic unit (BUSNPB) with a self-diagnosis function. The system is activated by submitting an electrical signal from the BUSNPB to the airbag module.

If the airbag is activated, the upper part of the cover of the facing module of the airbag, when the airbag is filled with gas, breaks in structurally defined places and opens into two or three parts. Through the resulting opening, the gas-filled airbag bag deploys in front of the steering wheel or instrument panel.

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The filling time of the pillow is about 30-40 ms. After the airbag inflates due to excess pressure, the gas escapes through special holes located in the rear of the airbag bag, thereby preventing the driver or passenger from colliding with parts of the vehicle's interior and at the same time softening the severity of the impact of their head and chest.

Lada Granta suspension diagnostics

To identify and eliminate the cause of the rattling, I decided to inspect the entire suspension of the Lada Grant for the presence of play and “tired” elements (bushings, rubber bands, etc.), since I thought that the problem lay somewhere there. So, let's begin.

Checking the front struts

The first thing I did was check the front struts. While rocking the car from side to side, I simultaneously kept one hand on one of the racks. If the knocks were coming from the front shock absorbers, I would have felt them. However, there were no knocks.

Photo 2: Is there a knocking noise in the front struts of the Lada Granta?

I also looked under the front wheel arches to make a visual inspection of the front shock absorbers - I didn’t see anything special there, the struts were dry.

Photo 3: A-pillars are “dry”.

Checking the tie rod ends

An examination of the steering tips also showed that everything is normal: the anthers are intact, there is no play in the body (checked with a pry bar).

Photo 4: Checking the play of the Lada Granta steering tips

And when driving on uneven roads, when rattling appeared, there was no “recoil” in the steering wheel. As a rule, if the steering tip is broken, then on bumps a muffled knock can be felt directly on the steering wheel. I especially listened when I was driving on a dirt road, but I didn’t feel any characteristic knocks “through the steering wheel.” Well, let's look further.

Checking wheel bearings

To check the condition of the wheel bearings on my Grant, I alternately jacked up the right and left sides of the front to spin the wheels. When the hub bearings fail, mechanical noise appears during wheel rotation (humming, crunching, clicking, etc.). Also, when the bearing wears out, the wheel may “dangle” on the hub, and the greater the wear, the greater the play. You can easily feel the play if you rock the wheel from side to side, as if trying to turn it left or right with your hands. In this case, the wheel must be suspended and rotate freely. In my case, the hub bearings were in good condition.

Photo 5: Checking the wheel bearing of Lada Granta

I would like to note that wheel play can occur even if the wheel bearing is intact. So, for example, it happened in my case when I went to an official dealer for zero maintenance. When inspecting the chassis, a slight play was discovered in both front wheels, which was eliminated by tightening the front hub nut.

Checking ball joints

The next step was to inspect the ball joints. Visually, they had no damage, the anthers were intact. Using a pry bar, the play between the ball pin and the support body was checked (by analogy with the steering end) - there was no play. By the way, the wheel must be hung when checking the ball joint.

The photo below shows a ball joint. I forgot to film the moment when I was loading/unloading the ball with the mount, but on the right side of the ball you can see “traces” from the mount—flying dirt.

Photo 6: Checking ball joints

Checking struts, stabilizer bushings and silent blocks

A visual inspection of the stabilizer struts and silent blocks did not reveal any defects. Under load, no play was detected either, and it was still too early. Short stabilizer struts (like on my Grant) fail much less often than the long ones that are now installed on Vesta, so I think it’s premature to talk about their failure.

Photo 7: Stabilizer struts and silent blocks

Photo 8: Stabilizer bushings

I am not describing the diagnostic process in detail now, since my goal was to detect something that was openly “dangling” and making that same rattling sound when driving on a dirt road. All the nodes described above have nothing to do with rattling. Even if one of them failed, the sound from the tapping would be muffled, and not ringing and rattling.

Of course, if the rubber bushing of the stabilizer, worn out into “trash,” completely flew out, then the stabilizer arm could theoretically hit the metal clamp and cause that same rattling sound, but... this is not our case.

What we have: the suspension is normal, no loose parts were found. What then makes this rattling sound? We are looking further.