What s going on with the abnormal noise on the left side of the BMW 5 Series cab

If you hear the abnormal sound of "Zizi" in the process of driving, and this is the abnormal sound caused by the problem of the engine belt, because the abnormal sound of "Zizi" is mostly the aging of each belt group of the engine, or the belt is too loose caused by the problem of the tensioner, the friction abnormal sound, belt slippage, etc., if there is a similar "Zizi" abnormal sound, then look for the major belt groups and tensioners inside the engine, such as engine timing belt, generator belt, circulating water pump belt, air conditioning belt, power pump belt, etc. The problem that causes this abnormal noise is the abnormal sound of the engine belt, which is caused by the smooth grinding surface of the joint surface of the belt and the pulley. It usually occurs when the engine speed changes rapidly, and sometimes the belt rings when the load of the attachment driven by the belt increases.

How to solve the problem of abnormal noise of engine belt.

1. Check whether the accessories driven by the belt are damaged, stuck, loose or the power of the accessories has increased.

2. Replace the belt, or use 100 gauze to polish the joint surface of the pulley and the belt (light grinding is fine).

3. The temporary solution can be to drop 1 2 drops of oil on the joint surface of the belt and the pulley (it will not affect the belt slippage).

If it is the generator belt that rings and the headlights are more obvious, you have to take off the generator belt, turn the motor pulley to see if the generator rotates smoothly, if the generator is normal, you can check whether the battery is not stored power, because the battery storage is not good will increase the load of the generator.

The abnormal sound caused by the internal pull line of the BMW 5 Series hitting the door panel. When the door inner cable hits the door panel, the sound is still obvious, what you have to do is to disassemble the door trim panel first, and then wrap the door inner cable with a small sponge, so that there is no noise, which is also one of the reasons for the abnormal noise of the car.

Causes of abnormal door noise in BMW 5 Series and its solutions:

1. The abnormal sound caused by the internal wiring harness of the BMW 5 Series door hitting the door panel. When the vehicle is driving on a bumpy road, it may cause the wiring harness inside the door to hit the door panel, so that there will be waves of noise, what we have to do is to disassemble the door trim panel, and then fix the wiring harness inside, it is best to find a small sponge, and then stick the ** bundle on the door panel, so that the wiring harness will hit the sponge, and there will be no noise.

2. The abnormal sound caused by the inner pull line of the BMW 5 series car door hitting the door panel. When the inner cable of the door hits the door panel, the sound is still obvious, what we have to do is to disassemble the door trim panel first, and then wrap the inner cable of the door with a small sponge, so that there is no noise, which is also one of the reasons for the abnormal noise of the car.

3. Abnormal noise caused by the door seal of the BMW 5 series. When the door seal is used for a long time, the seal itself will gradually age, so that the door seal and the car body have a certain friction, so that the vehicle in the driving, it may produce abnormal noise, we check the sealing strip of their vehicle, after the problem, change it to a new one, so that the door abnormal noise will be solved.

The reason why the center console of the BMW 5 Series rings:

1) If the plastic mold is deviated or installed with displacement, the bump causes the sound of mutual friction and squeezing loosening, find the position of the sound to confirm the friction point, and put on the rubber to block it, which has a good cushioning effect, 2) If not, find the inner tube of the car to do, if it is loose, first tighten the buffer of the rubber.

1. Check whether there are small objects inside the debris groove of the door, and a layer of rubber needs to be padded below the quilt to reduce vibration noise. 2. Find out the loose parts, check whether the sealing strip falls off and is loose, and restore it in time. 3. The internal parts of the door are scattered, and the loose screws cause the parts to collide with each other, remove the door, and drive the car slowly on the pothole, determine the location of the noise, and determine the location of the door for inspection.

Most of the problems with abnormal door noise are loose accessories that cause vibration and cause a lot of noise. The fundamental way to deal with abnormal noise is to check the loose parts, and the specific methods are as follows:

1. Check whether there are small objects inside the sundries of the car door, and a layer of rubber needs to be padded below the quilt to reduce vibration noise.

2. Find out the loose parts, check whether the sealing strip falls off and is loose, and restore it in time.

3. The internal parts of the door are scattered, the screws are loose and the parts collide with each other, remove the door, light the fire on the pothole road and drive slowly, determine the location of the noise, and determine the location of the door for inspection.

4. Go to the 4S store to check the noise in an all-round way and take corresponding sound insulation treatment. There are several reasons for the abnormal noise in the center console:

1. There are debris on the center console, and the bump vibration causes abnormal noise when the vehicle is running.

2. The internal parts of the center console are scattered, and the screws are looseSolution: disassemble the center console, and then drive in the bumpy place, you can determine the position of the noise, and fix the screws.

1. The abnormal sound caused by the internal wiring harness of the BMW 5 Series door hitting the door panel. When a vehicle is driving on a bumpy road, it can cause the wiring harness inside the door to hit the door panel, which can create waves of noise. 2. The abnormal sound caused by the inner pull line of the BMW 5 series car door hitting the door panel.

3. Abnormal noise caused by the door seal of the BMW 5 series.

Causes of abnormal door noise in BMW 5 Series and its solutions:

1. The abnormal sound caused by the internal wiring harness of the BMW 5 Series door hitting the door panel. When the vehicle is driving on a bumpy road, it may cause the wiring harness inside the door to hit the door panel, which will produce waves of noise, disassemble the door trim panel, and then fix the wiring harness inside, it is best to find a small sponge, and then stick the ** bundle on the door panel, so that the wiring harness will hit the sponge, and the noise will be gone.

2. The abnormal sound caused by the inner pull line of the BMW 5 series car door hitting the door panel. When the inner pull line of the door hits the door panel, the sound is still obvious, first disassemble the door trim panel, and then wrap the inner pull line of the door with a small sponge, so that there is no noise, which is also one of the reasons for the abnormal noise of the car.

3. Abnormal noise caused by the door seal of the BMW 5 series. When the door seal is used for a long time, the seal itself will gradually age, so that the door seal and the car body have a certain friction, so that the vehicle in the driving, it may produce abnormal noise, check the vehicle's seal, after the problem, replace it with a new one, so that the door abnormal noise is solved.

The reason why the center console of the BMW 5 Series rings:

1) If the plastic mold is deviated or installed with displacement, the bump causes the sound of mutual friction and squeezing loosening, find the position of the sound to confirm the friction point, and put on the rubber to block it, which has a good cushioning effect, 2) If not, find the inner tube of the car to do, if it is loose, first tighten the buffer of the rubber.

The abnormal noise of the door of the BMW 5 Series cab may be caused by the loose accessories, which causes vibration and a lot of noise. The fundamental way to deal with abnormal noise is to check the loose parts, the specific methods are as follows: 1. Check whether there are small objects inside the sundries of the door, and the quilt needs to be padded with a layer of rubber below to reduce the vibration noise.

2. Find out the loose parts, check whether the sealing strip falls off and is loose, and restore it in time.

BMW 5 series bumpy road door abnormal noise, because the wiring harness inside the door hits the door panel, so that there will be waves of noise, what to do is to disassemble the door trim panel, and then fix the wiring harness inside, it is best to find a small sponge, and then stick the ** bundle on the door panel, so that the wiring harness will hit the sponge, and there will be no noise.

Causes of abnormal door noise in BMW 5 Series and its solutions:

1. The abnormal sound caused by the internal wiring harness of the BMW 5 Series door hitting the door panel. When the vehicle is driving on a bumpy road, it may cause the wiring harness inside the door to hit the door panel, so that there will be waves of noise, what to do is to disassemble the door trim panel, and then fix the wiring harness inside, it is best to find a small sponge, and then stick the ** bundle on the door panel, so that the wiring harness will hit the sponge, and there will be no noise.

2. The abnormal sound caused by the inner pull line of the BMW 5 series car door hitting the door panel. When the inner pull line of the door hits the door panel, the sound is still obvious, what you have to do is to disassemble the door trim panel first, and then wrap the door inner pull line with a small sponge, so that there is no noise, which is also one of the reasons for the abnormal noise of the car.

3. Abnormal noise caused by the door seal of the BMW 5 series. When the door seal is used for a long time, the seal itself will gradually age, so that the door seal and the car body have a certain friction, so that the vehicle is driving, it may produce abnormal noise, check the vehicle's seal, after the problem, change it to a new one, so that the door abnormal noise will be solved.

Several causes and solutions for abnormal door noises:

1. There are small things in the door trim panels, such as lighters, coins, etc. Just take it away.

2. The interior trim panel or audio is loose, this fault can be found by shaking by hand, or pressing the abnormal sound when driving, if the abnormal sound disappears, it is a fault here, and it can be re-tightened.

3. The door hinges (hinges) are rusty, this phenomenon will be heard when the door is opened and closed, clean the hinges and apply some butter.

4. The door sealing strip is aging, and the door sealing strip will also have this failure if it has not been maintained for a long time, the best way is to buy a bottle of silicone grease to maintain it yourself, apply the silicone grease to the sealing strip, and wipe it off after absorbing for an hour, it will have a good effect.

5. If the door lock block is in poor contact, there is a gap or the lubrication is not good, you can apply butter at the lock block or wrap two circles of waterproof tape around the lock pin.

Extended information: 1. Door outer plate: the thin steel plate is stamped and formed;

2. Door reinforcing beam: that is, the door anti-collision beam, which has a closed round pipe section and a high-strength steel plate stamping form;

3. Door inner plate: an important support plate is also the installation body of the door accessories, and the thick thin steel plate is generally used. It has the following characteristics:

It is necessary to stretch out the deeper perimeter to form the door thickness;

Convex and concave tables of various shapes need to be stamped out on the board surface for the installation of accessory mechanisms;

Stamping out a variety of stiffeners to improve rigidity and reduce vibration and noise.

4. Door reinforcing plate: set up for partial reinforcement of the door body.

The part where the door accessory mechanism is installed on the inner plate surface improves the stiffness and connection strength of the installation part;

Thick reinforcing plates are arranged at the hinge of the door body, the opening limiter and the door lock, etc., and are welded with the inner plate of the door;

The reinforcing plate is set at the inner and outer window sill of the door, and the fixed installation structure of the cross-sectional form and sealing strip should be considered.

5. Door and window frames: most of them are stamped or rolled by thin steel plates. Key points to consider in the cross-section of the window frame structure:

Proper fit with the side wall door frame of the body;

Good sealing performance, layout and installation structure of sealing strip and glass guide trough;

Meet the requirements of glass lifting;

the stiffness of the window frame itself, which has a greater impact on the sealing;

The connection structure between the window frame and the inner and outer panels.

BMW 5 series bumpy road door noise, because the door internal wiring harness hit the door panel, so there will be waves of noise, what to do is to disassemble the door trim panel, and then fix the wiring harness inside, it is best to find a small sponge, and then stick the ** bundle on the door panel, so that the wiring harness will hit the sponge, and there will be no noise.

BMW 5 series bumpy road door abnormal noise, because the wiring harness inside the door hits the door panel, so that there will be waves of noise, what to do is to disassemble the door trim panel, and then fix the wiring harness inside, it is best to find a small sponge, and then stick the ** bundle on the door panel, so that the wiring harness will hit the sponge, and there will be no noise.

Causes of abnormal door noise in BMW 5 Series and its solutions:

1. The abnormal sound caused by the internal wiring harness of the BMW 5 Series door hitting the door panel. When the vehicle is driving on a bumpy road, it may cause the wiring harness inside the door to hit the door panel, so that there will be waves of noise, what to do is to disassemble the door trim panel, and then fix the wiring harness inside, it is best to find a small sponge, and then stick the ** bundle on the door panel, so that the wiring harness will hit the sponge, and there will be no noise.

2. The abnormal sound caused by the inner pull line of the BMW 5 series car door hitting the door panel. When the inner pull line of the door hits the door panel, the sound is still obvious, what you have to do is to disassemble the door trim panel first, and then wrap the door inner pull line with a small sponge, so that there is no noise, which is also one of the reasons for the abnormal noise of the car.

3. Abnormal noise caused by the door seal of the BMW 5 series. When the door seal is used for a long time, the seal itself will gradually age, so that the door seal and the car body have a certain friction, so that the vehicle is driving, it may produce abnormal noise, check the vehicle's seal, after the problem, change it to a new one, so that the door abnormal noise will be solved.

Photo by Pacific Automobile Network Q&A).