What are the precautions for disassembling and installing car airbags?

Hello, disassemble the car airbag.

Precautions are:

1. Do not use detection lamps and voltmeters.

Simple tools such as ohmic meters should be used with a high-impedance multimeter.

Detects the circuitry of the airbag system and the SRS warning light.

2. The disassembly work must be turned off under the ignition switch, and the negative cable of the battery.

It can only be started after 20s of dismantling.

3. Do not put the airbag in an unattended place, and when storing, the buffering side should be placed facing up and the surface facing up. If the airbag is stored with the surface facing down, an accident can occur leading to a serious accident. Never place any object on the airbag assembly.

If the inflatable component lands from a height of 90mm or more, it can no longer be used.

4. In order to prevent damage to the airbag assembly, keep it away from any oil, grease, detergent and water.

5. If the vehicle has a minor collision, although the airbag system is not triggered, the steering wheel pad, front passenger airbag assembly, seat belt retractor and airbag sensor should also be checked.

6. The airbag system can only work once, and the airbag must be replaced after being detonated in an accident. For safety reasons, all components of the air system also need to be replaced, I hope it can help you.

Airbag replacement tips and steps:

The installation of the SRS-40 assembly can be carried out in the following steps:

When unpacking a new component, first check for foreign objects to fall in to ensure that there are no objects inside the assembly;

align the pin in the assembly with the joint base plate and the hole on the steering wheel, then firmly press the component on the generator-sensor assembly, and ensure that the fixing bracket holes on the component are aligned with the holes on both sides of the steering wheel, if these fixing brackets are not installed in place, the cover can not be completely covered on the assembly, affect the appearance effect, pay attention to when installing, do not hit and knock any part of the component and the steering wheel;

Install the bolts, maintain the pressure on the assembly, make the shell buckle intact, and install 4 bolts alternately from one side to the other, and the tightening torque is 7-11N·m;

Finally, install the covers on both sides.

Note: The following procedures should be strictly followed when disassembling airbags:

1. Wear fireproof gloves and protective goggles;

2. Disassemble the covers on both sides of the steering wheel;

3. Unscrew the 4 fixing bolts on both sides;

4 Carefully remove the airbag assembly;

5 Use a small screwdriver to turn the black plastic cleats outward, and carefully rotate the generator counterclockwise until the generator - the sensor seat is aligned with the steering wheel matching slot. Gently take the generator-sensor out of the steering wheel interface;

6. Turn the front wheel to the position in front of you, if you still need to continue to use the steering column and steering wheel, you should mark the relative position of the steering wheel and the steering direction, and then remove the fixing nut of the steering wheel, remove the nut and flat washer, and remove the steering wheel. Before installing the airbag, attention should be paid to: wear fireproof gloves and protective glasses; Smoking is prohibited during operation.

Car airbags cannot be manually opened in the normal way. And there are safety hazards.

Automotive airbag systems can be divided into 3 components:

gas generators;

control systems; Gasbag.

The inflator is used to produce a sufficient volume of gas at a fast enough rate to feed the air bag. The control system is used to determine the severity of the collision, decide whether the airbag should be opened, and start the inflator when the conditions are met. The airbag is used to accept the gas from the inflator, control the pressure of the gas and the position and shape of the space occupied by the airbag, and accept the collision of the occupants, absorb the kinetic energy of the collision, thereby achieve the purpose of reducing and reducing the occupants.

After a collision, the airbag is triggered by a collision sensor and an airbag control computer.

1. Modern cars usually have three collision sensors, one under the left and right fenders, and the other is called ** collision sensor, which is located on the control computer. Some cars are also equipped with deceleration sensors to monitor the severity of the crash and allow the computer to determine whether the airbag needs to be triggered.

2. In the event of a collision, the direction of the collision must be within 30 degrees of the longitudinal axis of the car, otherwise the front airbag will not be triggered.

3. After the collision, the collision sensor is triggered, and the signal is transmitted to the computer, and the computer determines that the airbag needs to be triggered to protect the safety of the front occupants, so the airbag detonator circuit is turned on, and the detonator is decomposed, and a large amount of nitrogen is rushed into the airbag, so that the airbag is inflated, and the head of the occupant is blocked due to inertia after the collision, so as to protect the occupants from the injury of cervical spine breakage.

Disassembling the airbags:

1) Turn on the ignition switch first and check whether the airbag indicator on the dashboard is working properly.

2) Turn off the ignition and pull out the key. Disconnect the positive pole of the battery and wait for more than 2min. If the airbag indicator is working abnormally, you should wait for 10min after disconnecting the positive pole of the battery before operating.

3) When disassembling the steering wheel, a special tool should be used to lock the steering column in the "straight forward" position to ensure that the control device and the spiral cable will not be damaged during installation.

4) Only parts with the same part number as the original car can be installed. Igniters have an expiration date, and the expiration date indicated on the parts must be observed.

5) After the battery is turned on, when the ignition switch is turned on, the maintenance personnel should not put the body in the trajectory of the airbag opening.

6) After installation, check whether the airbag indicator is operating normally.

Yes, but if a major traffic accident occurs in a vehicle with safety equipment installed without permission, the insurance company may not compensate the owner on the grounds that the vehicle owner has changed the safety structure of the vehicle without authorization, and it is not realistic to let the car modification shop take responsibility.

The stability and reliability of the airbags installed are certainly not as good as those of the original products. Due to the different structure and performance of each car, airbags are used as safety equipment, and matching experiments must be done before finalization and loading. In the development process of airbags, the main engine factory should invest tens of millions of yuan to use the original car to do collision experiments with different speeds, different collision states, and different height and weight occupants, accumulate experimental data, control the detonation speed and detonation time of the airbag, and avoid secondary damage to people after the collision of the airbag.

Introduction:

According to the analysis of professionals, the cost of installation has far exceeded the difference between the optional and standard models. I went to some tuning shops and asked about modified auto parts**, and found that the installation of airbags requires the replacement of dashboards, wiring harnesses, computers, airbags, etc. For example, Jetta City Star needs about 4,000 yuan to install driver's seat airbags, and 1,000 yuan more to install passenger seat airbags.

Hello, airbags can be retrofitted. However, considering the problem of safety and responsibility, there are generally few places to install services in this regard, because the installation of airbags needs to be reported to the vehicle management office, and it can only be installed after consent. Otherwise, it is an illegal modification.

In addition, the responsibility for installing airbags is not obvious, and when the real problem arises, if the airbag does not explode smoothly, who should be responsible? becomes a matter of debate. In addition, the cost of installing airbags is high and it is not cost-effective.

Therefore, the installation of airbags on the basis of models with airbag configuration is not common and is not supported, but depends on the specific situation.

To replace the new airbag, first align the components correctly with each hole, press and fix them, and then fix the shell to it, and tighten the screws around it.

I don't know this very well, because I usually don't pay much attention to this aspect, if you need to replace, you should go to a professional repair shop to replace, so that there will be no hidden dangers when it is replaced.

If you want to save your life, the most effective and correct way is to send it to a 4S store to replace the original airbag.

Airbags are not as simple as changing parts for other things, they need the right signal, and each manufacturer has its own calibration type.

Summary. Pro, the steps to replace the airbag: When unpacking the new component, first check whether there is any foreign object falling in to ensure that there is no foreign object in the component; Firstly, the pin in the assembly is aligned with the joint bottom plate and the hole on the steering wheel, then the component is firmly pressed on the generator-sensor assembly, and the fixing bracket holes on the component are guaranteed to be aligned with the holes on both sides of the steering wheel, if these fixing brackets are not installed in place, the cover can not be completely covered tightly on the assembly, and the effect of affecting the appearance is affected, pay attention to not to hit and knock any part on the component and the steering wheel during installation; Install the bolts, maintain the pressure on the assembly, let the shell buckle intact, and install four bolts alternately from one side to the other, and the tightening torque is 7-11N·m; Finally, install the covers on both sides.

What are the correct steps to take to replace your car's airbags?

Pro, the steps to replace the airbag: When unpacking the new component, first check whether there is any foreign object falling in to ensure that there is no foreign object in the component; First, the pin in the assembly is aligned with the joint bottom plate and the hole on the steering wheel, then the component is firmly pressed on the generator-sensor assembly, and the fixing bracket holes on the component are aligned with the holes on both sides of the steering wheel, if these fixing brackets are not installed in place, it will cause the cover on the component can not be completely covered tightly, and the effect of the appearance of the rubber ring will be affected, pay attention to the installation, do not hit and knock on any part of the component and the steering wheel; Install the bolts, maintain the pressure on the assembly, make the shell buckle stove fit intact, and install four bolts alternately from one side to the other, and the tightening torque is 7-11N·m; Finally, install the covers on both sides.

When disassembling the airbag, the following procedures should be strictly followed: 1. Wear fireproof gloves and protective goggles; 2. Disassemble the covers on both sides of the steering wheel; 3. Unscrew the four fixing bolts on both sides; 4 Carefully remove the airbag assembly; 5 Use a small screwdriver to turn the black plastic cleats outward, and carefully rotate the generator counterclockwise until the generator - the sensor seat is aligned with the steering wheel matching slot. Gently remove the generator-sensor from the steering wheel interface;

Foreword: In order to travel safely, many cars are now equipped with car airbags. In fact, the way we replace the car airbag is very simple, do you know how to do it?

First, the correct use of car airbags in the process of driving will have a lot of safety devices, you may first think of the seat belt or airbags, airbags can provide effective protection for passengers or drivers, in the event of a car collision, car airbags will automatically pop out, to provide the last guarantee for our lives. But in fact, there are certain ways to use airbags, and if we use them improperly, it will bring a fatal blow to our lives. We need to carry out daily and regular inspections of airbags and replace them in a timely manner if they fail.

Do not change the layout around the airbag without permission, and keep the driver in the correct position while driving.

2. How to replace the airbag? First of all, when we unpack new components, we need to check if there are any other objects in them to make sure that there are no objects in these components. Secondly, we can align the holes in these components with the holes in the joint base plate and the steering wheel, and then press these components firmly against the sensor to ensure that the holes on the components can be aligned with the holes on both sides of the steering wheel.

If these mounting brackets are not put in place, it may affect the appearance and cause the covers to not be fully covered, so do not knock on these components or anywhere on the steering wheel during installation. Then we fasten it with the shell buckle and tighten it from side to side using four screws.

3. Pay attention to the installation sequenceWhen we disassemble the airbag, we must wear gloves and protective glasses to avoid danger. Second, remove the covers on both sides of the steering wheel, be careful about the components of the airbag, and rotate the sensor counterclockwise with a screwdriver until it can align with the steering wheel holes.

Know. First find the location of the airbag, then remove the old airbag, and finally install the new airbag.

Use the appropriate tools to open all the holes in the steering wheel, then remove the cover, put the airbag in, and be sure to fix it after installation.

When unpacking a new component, first check for foreign objects to fall in to ensure that there are no objects inside the assembly; align the pin in the assembly with the joint base plate and the hole on the steering wheel, then firmly press the component on the generator-sensor assembly, and ensure that the fixing bracket holes on the component are aligned with the holes on both sides of the steering wheel, if these fixing brackets are not installed in place, the cover can not be completely covered on the assembly, affect the appearance effect, pay attention to when installing, do not hit and knock any part of the component and the steering wheel; Install the bolts, maintain the pressure on the assembly, make the shell buckle intact, and install 4 bolts alternately from one side to the other, and the tightening torque is 7-11N·m; Finally, install the covers on both sides.