Front suspension VAZ 2108 / VAZ 2109 / VAZ 21099

The first photo shows the chassis of the VAZ 21099, typical of front-wheel drive cars produced in the 80s of the last century. Below you will find an image of a MacPherson front suspension with telescopic struts and wishbones with braces and a stabilizer. The rear suspension of the VAZ Sputnik has shock absorbers located inside coil springs and trailing arms connected to each other by an elastic beam.

Repairing the chassis of a VAZ 21099 car with your own hands is not very difficult. The main thing is to have the necessary tools and be able to correctly identify faults.

Front suspension diagram of the VAZ Sputnik-Samara.

1. Telescopic stand.
2. Screw.
3. Bolt with eccentric.
4. Another nut.
5. Rounded fist.
6. Drive shaft.
7. External CV joint cover.
8. External CV joint.
9. Cross arm suspension.
10. Ball.
11. Decorative cover.
12. Hub.
13. Support disk.
14. Protective cover.
15. Swivel lever.
16. Lower spring cup.
17. Coil spring.
18. Rack cover.
19. Compression buffer.
20. Upper spring cup.
21. Upper strut bearing.
22. Rack support.

This diagram does not show the braces and front stabilizer.

Front axle

The front axle has an independent telescopic suspension, which uses both hydraulic shock absorbers and coil springs. The wishbone is the lower one with braces. The chassis is equipped with a stabilizer bar. The suspension device of the VAZ 2109 is almost identical to that of the VAZ models 2108, 21099.

Components and parts of the front axle chassis

The front axle of the VAZ 2109 is perhaps the most complex element of the chassis, this is due to the fact that the car’s transmission is front-wheel drive, but the number of main components in its structure is not so large. This:

1. Rack with shock absorbers;
2. Rounded fist;
3. Cross arm;
4. Stretch marks;
5. Mounting units for the chassis to the body and transmission;

Description of the front suspension design

The chassis of the front axle of the VAZ 2109 contains quite a lot of elements, but everything is typical for cars of this class and its design has something in common with many cars of the same type. The main part is a telescopic stand with a hydraulic shock absorber. A coil spring with a stroke buffer is installed on top of the hydraulic cylinder. The upper support is also made of polyurethane and ensures the rack swings and vibration damping. The device for fastening the rack to the body (with three bolts) allows you to dampen vibrations. There is also a ball bearing inside the support, which ensures that the stand rotates together with the wheel. At the bottom of the steering knuckle there is a ball joint for connection with the lower suspension arm.

To compensate for the forces, there are stretchers with rubber-metal hinges. To install the wheel hub, a double-row thrust bearing is mounted in the steering knuckle. The hub is secured with one bolt. The suspension device also includes a stabilizer; it is connected to the lower suspension arms through struts with rubber hinges.

Replacing the lever

The front suspension arm of the VAZ-2109 is one of the most important elements of the unit under consideration. Its replacement is usually carried out in case of a violation of the geometry, after falling into a pothole, hole, ditch, hatch, or when it is impossible to remove the rubber-metal hinges. It is best to repair the VAZ-2109 on a lift, but you can get by with a jack.

First, the front wheel is removed, which should first be hung and secured with a backing made of boards or bricks. The ball nut is unscrewed with a spanner and then removed from the lever. At the next stage, the rear nut is loosened, the stub rack mount and the bracket mount are unscrewed. The bolt is removed, the lever can be freely removed.

The removed front suspension of the VAZ-2109 is inspected for integrity and the presence of defects, after which the rubber-metal hinges or the entire lever are replaced. Assembly occurs in reverse order.

Rear axle

The design of the rear axle chassis of the VAZ 2109 is much simpler, this is explained by the fact that, unlike a classic rear-wheel drive car, it does not have transmission-related parts. And the load taken by the chassis is much less than that of a truck.

Rear axle chassis parts

Due to the milder operating mode (compared to the rear-wheel drive of previous models), the designers had the opportunity to simplify the design and design of this unit of the VAZ 2109. Thus, in the rear suspension of the chassis there are no stretch marks and parts for transmitting rotational force to the wheels, stabilizers (since their role is played by the beam), this slightly worsened the dynamic parameters of the car, but significantly increased reliability. The diagram of this chassis unit includes:

• Trailing arms;
• Central beam;
• Brackets for fastening the vehicle axle to the side member;
• Hydraulic shock absorbers;
• Springs (pair);
• Flanges for mounting wheels.

Rear axle design

The main element of the rear axle of the chassis of the VAZ 2109 is a beam, which in turn consists of three parts - two trailing arms and a connector. These three units are connected by welding with reinforcing linings. Brackets for installing car shock absorbers and flanges for installing wheel axles are welded onto the arms.

In the front part, hinges are installed with a lever; bolts pass through them to secure the chassis to the hinges mounted on the body side members. The shock absorbers of the rear axle of the VAZ 2109 are hydraulic with added coil springs. In their upper part, through rubber-metal bushings, they are fixed in the parts of the car body.

Rear suspension

The central beam is the main element of the rear-wheel drive system of the VAZ 2109 - repair of the rear suspension often requires replacing the entire beam. So:

• To do this, you need to lift the rear of the car, place shoes under the front wheels and engage the gear.
• After removing the wheels, remove both shock absorbers, disconnect the hand brake cables and remove the ends from the brackets.
• When disconnecting the brake hoses, you need to think about how to cover the holes to avoid brake fluid leakage. After unscrewing the nuts securing the beam, knock out the bolts and remove the beam.

VAZ 2109: rear suspension repair

If you disassemble the beam, it is better to loosen all connections that are tightened with a large torque in advance. It may be enough to replace the silent blocks or bearings and install the beam in place. If you are not sure that you can determine the cause of the malfunction yourself, trust the specialists.

How to check the health of a car's suspension

Perhaps the most critical component after the steering and braking system that influences safe operation is the vehicle's chassis. Therefore, it is necessary to constantly monitor its condition. Of course, in a passenger car, the wear of this unit is not as severe as in a truck, but most often (and VAZ cars are no exception) designers plan for the stability and durability of the suspension scheme taking into account the soft mode.

For a qualified conclusion that the suspension is in good or faulty condition, it is better to contact a service station, where they will be able to fully diagnose the condition of your car on special stands, and the technicians, for whom the suspension diagram has no secrets, will be able to accurately identify a breakdown or minor malfunction. But still, even without knowing the device thoroughly, you need to know the most important symptoms that something is wrong with the machine. It is advisable to pay close attention to the slightest changes in the behavior of the car on the road, which may be symptoms of faulty bridges.

Diagnostics

It would be wisest if you do not wait for a breakdown and diagnose the chassis. There is no consensus on its timing - each specialist has his own opinion on this matter. The mileage recommended for vehicle maintenance varies from ten to thirty thousand kilometers. First of all, you need to focus on operating conditions - if you drive on broken country roads, this figure will be minimal. So:

• The diagnostic procedure includes checking the degree of wear of the shock absorbers. In car services, it is done with a special device that checks the elasticity of the spring. It is impossible to determine the degree of wear visually. Springs that have lost their elasticity may break.
• Be sure to inspect the spring cups, which may also have defects and damage. They check the play in the VAZ CV joint - a torn boot can create problems. Inspection of ball joints and tie rod ends is also necessary.
• Silent blocks are connecting elements between the frame and suspension; due to this worn-out part, the smoothness of the car is lost. Both brake pads and wheel bearings are subject to inspection, and the tightness of the hoses is checked.
• Computer diagnostics makes it possible to identify and promptly eliminate even minor faults, which will protect parts from more significant damage.
• When you fall into a hole or hit a curb, the rims are the first to suffer. The rim of the disc may bend, which will certainly be felt when moving. An iron or cast disk can be rolled, but a forged one cannot be repaired. It will simply burst upon impact.
• The wheels of any car need periodic balancing and checking tire pressure. It must be as prescribed in the operating instructions. When changing wheels seasonally, you need to alternate their installation from the front to the rear axle, which will balance out tire abrasion.

Wheel balancing

If these simple rules are not followed, not only the tires will wear out, but also the steering, braking system and transmission elements. Timely maintenance of the chassis is the key to your safety on the road.

Signs of wear or damage to the undercarriage

1. Leaks under the car in the area where suspension parts are located. Cars of the VAZ 2109 model, as a rule, already have a long service life (and the design of the hydraulic cylinders is designed for a certain resource, which they may have exhausted a long time ago). There is a high probability that the oil seal or shock absorber rod mirror may wear out, so pay attention to possible leakage of hydraulic fluid (in principle, you need to be careful about any leaks from the car);
2. Knocking when driving, yawping along the road is the most common sign of a malfunction. As a rule, this indicates wear or loosening of the components; carefully inspect the suspension, or best of all, contact a workshop;

3. When acting on the suspension (try pressing on the hood or, conversely, lifting your car, experienced auto mechanics, when first getting acquainted with passenger cars, not only the VAZ 2109, roughly assess the condition of the chassis), the suspension does not provide sufficient resistance - the first sign of malfunction hydraulic cylinders. There can be many reasons - insufficient amount of fluid, leakage due to wear of the seals, fluoroplastic bushing, wear of the rod, malfunction of the valve mechanism. It is necessary to replace worn parts, replenish the oil in the cylinders, or eliminate the malfunction of the valve mechanism;
4. When driving (especially on uneven roads), hard shocks with a characteristic sound occasionally appear, which can even be felt on the steering (the so-called “breakdown” of the suspension). The appearance of this symptom indicates that the springs (most often the rear chassis) have lost their properties due to metal fatigue; hydraulic shock absorbers may also not work properly. In any case, it is necessary to inspect the structure of your suspension and make repairs.

Chassis of VAZ 21099 Lada Samara

Repairing a car yourself remains a rather difficult task, especially if you consider the chassis of the VAZ 21099 Lada Samara. Today you can find a large number of various recommendations that tell you how to solve some problems during the operation of a particular car unit, but the bulk of such resources are based only on generalized information without delving into the subtleties and details, on which not only the duration of operation, but also its effectiveness often depends.

Our information portal offers you full support in this matter. The presented repair manuals and detailed descriptions of the units are available online 24 hours a day. If necessary, you can get a more convenient, handy version by simply downloading it from the page. A detailed description of the parameters and what the chassis of the VAZ 21099 Lada Samara consists of, important aspects for correct and reliable installation will help to significantly reduce the risk of unexpected car breakdowns. Information provided about all components online allows you to quickly and effectively monitor any defects and defects, even before they appear during operation.

Most of the data presented on the site is taken from the instructions, but at the same time, it is much better structured and disclosed in detail to the user. Using them as an application database, you can always install and repair cars with your own hands, no less efficiently than in a car service center. But to do this you need to have a certain amount of knowledge, which can be replenished on our website.

Having studied all the necessary features of the unit, the car owner will gain invaluable experience in handling not only original, but also contract options. It's no secret that the original will in 100% of cases meet the assigned tasks as part of the car, but there is always a risk of manufacturing defects, which can be easily determined using our recommendations.

A good contract spare part is almost as good in quality and reliability as the original models. However, in most cases, important nuances remain during installation and operation, knowledge of which will help maintain the performance of the analogue at the proper level. Most sections of the site are devoted to these and many other important points.

6.0 Chassis

Front suspension: 1 - telescopic strut 2 - brace bracket 3 - brace 4 - front suspension arm 5 - ball joint of the arm 6 - steering knuckle 7 - stabilizer bar 8 - stabilizer bar Note Special.

6.1. Front suspension (Category). See the list of materials inside.

6.2. Rear suspension (Category). See the list of materials inside.

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Front suspension device for VAZ 2109

The front suspension of the VAZ 2109 takes on the main load of the car. Therefore, it is necessary to maintain special control over it. The front suspension is subject to load even at rest.

Components of the vehicle chassis:

1. Frame.
2. Wheels.
3. Front suspension.
4. Rear suspension.

If you diagnose your car in a timely manner, you can avoid many problems with your car.

The front suspension of the VAZ 2109 is the front independent element of the car.

The main device of the front suspension of the VAZ 2109 is shock-absorbing struts on which springs are mounted.

Repair of chassis of Lada VAZ 2109

Every car enthusiast knows that preventative repairs for the main components of the Lada 2109 should be done as often as possible. First of all, this concerns the chassis. This includes both suspensions (front and rear), frame, wheels - that is, all those elements that bear the load both when the car is moving and when it is parked. Since these components of the 2109 machine are in operation all the time, they wear out much faster. However, this applies to all VAZ models.

The main problems of the VAZ 2109 front suspension

The front suspension of the VAZ 2109 requires constant monitoring. The main problems in the front suspension are considered to be abrasion of the hinge covers. This problem is mechanical. Also, an equally important problem with the front suspension is unevenness in the lever. This problem may lead to incorrect operation.

All these parts must be constantly inspected and, in case of breakdown, must be replaced with new ones.

The main problems of the front suspension can be:

1. Breakage of racks (it is necessary to urgently begin repairs or replace the part).
2. Loosening the bolts (they need to be tightened).
3. The tension cushions are worn out (they should be replaced immediately with new ones).
4. The upper elements are not secured sufficiently (the nuts need to be tightened).
5. The supporting element has collapsed (urgent replacement of the part with a new one).
6. The hose supports are worn out (it is necessary to replace the part with a new one).
7. The ball joint is worn out (the part needs to be replaced with a new one).
8. Wheel imbalance (urgent balancing required).
9. The spring or compression buffer is broken (urgent replacement of parts with new ones is required).

Repair of the front suspension and replacement of parts with new ones may be required for such problems as:

1. Significant difference in tire pressure on the front suspension (the broken part should be adjusted).
2. The mounting angles in the wheels are broken (the angles need to be corrected).
3. The rubber element on the support post is deformed (it is necessary to urgently replace the part with a new one).
4. The difference is in the spring and tire indicators (it is necessary to urgently find the breakdown and replace the part with a new one).

In order to avoid frequent breakdowns of the front suspension of the VAZ 2109, you must adhere to several tips: do not overload the car beyond the maximum load, do not accelerate or brake with sudden movements, and most importantly, do not exceed other indicators, information about which is in the instructions for your car.

What problems can there be and how to fix them

The condition of the front suspension should be monitored regularly. The most common damage is abrasion of the joint covers. These damages are classified as mechanical. Among the malfunctions of this element of the car, unevenness of the lever located on the suspension or on the stabilizer bar is noted. This may result in incorrect and inaccurate operation. In all these cases, you need to check the parts and then simply replace them with new ones.

Among the malfunctions there may be minor ones that should be eliminated using a regular repair kit. For example, loosening the bolts of the stabilizer bar or the nut of the support. You should tighten them tighter.

If you hear the suspension making sounds (knocking, creaking), then this indicates more serious damage. First you need to determine where the sound is coming from. You can use a jack for this. Rock the wheel in a vertical plane; if there is a knock in the center of the wheel, then most likely there is a fairly large gap in the bearing. It is better not to change the bearing yourself, as it can be destroyed. It is better to contact a car service center that has special equipment for these purposes.

We draw conclusions: it is better to diagnose and prevent your car and protect yourself while driving than to invest in tuning.

Visual fault diagnosis

Among the methods for identifying faults, the visual method is good because it allows you to identify minor damage to parts long before they lead to a serious breakdown. In this case, emergency repairs to the front suspension will not be required, and most importantly, there will be no risk of creating an emergency situation.

It is better to inspect the chassis parts of the VAZ 21099 on a clear sunny day. If this is not possible, you should prepare a powerful flashlight. In addition, it is necessary to have a rag and a brush with soft bristles in advance to wipe off dust and dirt from the surfaces being inspected.

1. First, drive the car onto a lift or pit. If this is not possible, raise the front of the car with a jack. Don't forget to put the car on the handbrake and support the rear wheels.
2. For convenience, remove the front wheels.
3. Carefully inspect the protective covers of constant velocity joints, ball joints, as well as stabilizer pads and silent blocks. If ruptures, cracks or one-sided bulging of rubber are detected, replace the damaged parts.
4. Inspect metal parts for cracks and bends. If problems are found, supply new spare parts.
5. Check for oil leaks on the struts. If there are any, replace the shock absorbers or entire struts.
6. Inspect the compression buffer and spring for cracks. Replace them if necessary.
7. Measure the distance A (in the above diagram) between the support plate and the front suspension arm. If, when rocking the travel distance, the distance increases by 0.8 millimeters or more, replace the ball joint.
8. Rock the hub left and right and up and down. If it sways and a knock is heard, the car needs to be repaired and the wheel bearing will have to be replaced.

Replacing suspension silent blocks

If no damage is found, don't feel like you wasted your time. Such an inspection must be carried out every 5,000 kilometers. It will help you avoid serious problems while driving.

If you don’t want to waste time, do a little tuning - install a front stabilizer from a Lada Priora during diagnostics. It is perfect for the VAZ 21099. With it, the chassis of your car will become more rigid, but the car’s stability at high speeds will improve.

Where to start repairing the chassis? That's right, by inspecting all the components))) After the inspection, I determined what I would need to buy for repairs and made a list:

1) Steering rod puller and ball. supports 2108 zinc AK-2 = 234 RUR - decided not to take it yet 2) Device for pressing in torque rod bushings VAZ AVTOM = 146 RUR 3) CV joint boot 2108-09, 2170 internal and external BRT (set - lubricant + clamp) = 177+ 172r 4) Hinge extension 2109-10 chamomile (set 4 pcs) BRT = 155r 5) Silent block of lever VAZ 2108-10 in pack. (set of 2 pcs) boost. Savy-Sport = 117 RUR 6) Stretch bracket (crab) 2108-099 Chance+ (set of 2 pieces) = 213 RUR - I found out that these crabs are bad, they burst quickly, as soon as I have the money I’ll take good ones (mine are still intact, they look like) 7) Bushings stabilizer VAZ-2108 (set of 2 pieces) Poleur. yellow SY-20 comfort = 60r Stabilizer strut 2108 (eggs) reinforced. SEVI = 195r 9) Lubricants (solidol/litol), fastening bolts (if needed) and so on = ?r

Other causes of malfunctions and possible repairs

Replacing the front suspension or repairing it may be necessary due to the following conditions:

• If there is a large difference in tire pressure, this indicator needs to be adjusted.
• Violation of wheel mounting angles - timely adjustment of this unit is required.
• Deformation of the rubber element of the support strut - can be solved by replacing the faulty part.
• If there is a large difference in the elasticity of tires or spring mechanisms, the defective spare part should be replaced.
• In addition, it is necessary to monitor the balancing of the wheels.

To avoid premature repair of the front suspension, it is necessary to follow the recommendations for the maximum load of the vehicle, avoid sudden acceleration and not exceed the maximum permissible values ​​​​specified in the operating instructions.

Checking the chassis

It is necessary to check the technical condition of rubber boots and seals at least once a year. This includes ball joints, covers for struts, beam and rod bushings, silent blocks, stabilizers and other parts. Oil seals and anthers that are torn are replaced with new products. If you do not replace the boot in time, the suspension part will quickly fail. There is lubricant under the boots, and when dirt gets into the lubricant through a torn boot, it quickly increases the wear rate of the part. It works like sandpaper. You will find a more detailed description and vehicle chassis repair on our portal.

Replacing shock absorbers on the front suspension of a VAZ 2109

It is enough when repairing the front suspension of a VAZ 2109; it is also necessary to replace the shock absorbers. You can understand that it is time to change the shock absorbers by hearing shocks while driving. Most often this indicates that the springs have broken or the shock absorber has lost its elasticity. Springs and shock absorbers can only be replaced in pairs.

1. First you need to remove the front strut. Then take it apart. However, it will not be possible to repair the wheel corners.
2. You need to remove the wheel and turn the steering wheel all the way. Unscrew the nut with a wrench while removing the cotter pin.
3. Remove the stand holder. Remove the plug and loosen the shock absorber rod nut.
4. Place a mounting mark on the bolt. Remove the bolt.
5. When reassembling, it is necessary to achieve alignment of the marks, then the deviation of the wheel angles will be less.
6. Next, unscrew the upper and lower bolts and remove the adjusting washer.
7. Unscrew the nuts that connect the strut support and the body. Install two zip ties onto the springs. In this case, the ties must be opposite to each other.

The front suspension of the 2109 can often break down, causing a lot of trouble for its owner. To avoid problems and frequent breakdowns of the 2109 suspension, it is necessary to promptly diagnose your car and, in the event of any malfunction, urgently check and inspect it, and if it is severely damaged, replace it. If you yourself are not able to repair the front suspension of the VAZ 2109, it is better to take the car to a car service center, where experienced technicians will quickly and efficiently repair your car. If this is not done in a timely manner, bad consequences may occur.

Insufficient strut resistance

If the front suspension of the VAZ-2109 has lost the tightness of the return or bypass valve, it is necessary to replace the damaged parts. If there is a small amount or leakage of the working mixture, it is necessary to check, replace worn parts, and add the used composition to the norm.

In addition, in case of wear, settlement, deformation of the guide bushing, rings of the cylinder-piston group, spring mechanism, unusable elements and filters should be replaced and new fluid should be added. It is also necessary to pay attention to the integrity of the additional spring elements, valve discs and hinge block. If necessary, deformed elements must be replaced as quickly as possible, which will facilitate the rapid restoration of the unit in question and prevent further damage.

Scheme

The diagram below will allow you to determine what components the assembly is divided into and what it represents in the assembly. The table will help you figure out where each suspension element is located.

Node diagram

Bottom view

It is not enough just to know the name and location of the suspension elements. Be sure to understand how the entire system works and how all the components interact with each other.

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