Anti-roll bar Renault Logan. Renault logan anti-roll bar

This element of the front suspension performs a very useful function - it prevents large rolls in corners. However, at the same time, large shock loads fall on the stabilizer struts, which leads to their failure. Therefore, it is important to know how to replace them.

Replacing stabilizer struts

The following tools are required for work:

• TORX T45 with size 10 bit.
• Hammer.
• Wrench.
• Jack.
• Screwdriver.

Replacement process:

1. Loosen the nuts on the front wheel. .
2. Raise the front of the body on a jack (or hang the car on a lift).

   Getting the job done!

3. Remove the nuts from the wheel, and then the wheel itself.
4. Remove dirt from the stabilizer bar and its attachment point.
5. Treat the part with WD-40.
6. Loosen the nut on the strut fixing bolt with TORX while tightening the flat head of the bolt with an adjustable wrench.

   

   Likes Torx Renault

7. Remove the nut and pad. If the latter has oxidized and is dismantled with force, it is allowed to carefully knock out the bolt upwards with a hammer.

   

8. After dismantling the pillow, the bolt itself is also knocked out with a hammer. When it enters the rack housing, you must take a screwdriver and continue to knock the bolt out of the housing.

   

   Bolt knocked out

9. After the bolt is removed, it is necessary to bend the stabilizer and remove the rack housing.
10. Before installing a new part, the mounting holes on the suspension arm and stabilizer are cleaned of dirt.
11. A new strut is installed between the suspension arm and the stabilizer.
12. The top cushion is put on the bolt, and it is inserted into the rack body.

    

    We dress and tighten

13. A pillow and a fixing nut are also installed from below. The tightening torque of the nut must be 14 Nm.
14. The replacement has been made. Further assembly is carried out in the reverse order.

Why do we need a stabilizer bar, what is its role?

The appearance of the stabilizer strut that has worked out (wear is visible)

Anti-roll bars are elements that directly connect the stabilizer itself to the lower arm of the front suspension. Detailed. Thus, the racks are not an independent unit, but are integral with the stabilizer and perform a common function - they prevent the occurrence of huge rolls when the car is cornering and diagonal buildup.

The design of the stabilizer bar for Renault Logan is simple:

• Long flat head bolt with short threads.
• Two pillows - lower and upper.
• Whole body.

Old and new stabilizer struts (for comparison)

Tasks of stabilizer struts

• The fight against diagonal buildup and rolls in turns - preventing the car from tipping over.
• Stabilization in the horizontal plane of the car body.
• Ensuring acceptable grip with the road surface of the front wheels.
• Maintaining balance when distributing loads.

Resource

When operating in poor road conditions and constant shock loads on the suspension, the struts will be considered as a consumable part.

The average service life ranges from 15,000 to 20,000 kilometers.

At the same time, the stabilizer, which is a relatively powerful rod, is quite resistant to mechanical stress and lasts a long time.

Symptoms

If the racks are badly worn, then:

• When cornering, rolls and diagonal buildup increase - the body falls heavily to one side.
• At the moment of a sharp rearrangement, traction deteriorates, as a result of which one of the axles of the car may be demolished.
• Under heavy braking, the body sways.
• The susceptibility to rutting increases. Steering wheel correction required.
• Manageability deteriorates. Reactions on the steering wheel become less clear.

Causes of part failure

• Driving on broken roads.
• Excessive driving - high speed when passing turns and sharp maneuvers.

Diagnostics of the stabilizer struts

In order to understand how worn out the stabilizer strut is, it is necessary to call at a service station in order to raise the car on a lift or (and) to a viewing hole:

• The first step is to conduct a visual inspection of the part. It's pretty easy to find - it's the connection at the end of the stabilizer that attaches the latter to the suspension arm. After inspection, you need to manually determine the presence of rack play. If it is, then the element needs to be replaced.
• It is not always so easy to identify a faulty rack. There is another option - with the involvement of a partner. The procedure is carried out on a viewing hole. The assistant should rock the car in the transverse plane, and the inspector should press his palm against the rack and listen. If there is play and knocking, the part is to be replaced.

Many people ask themselves: what to buy - an original spare part or an alternative from a third-party manufacturer? Of course, products from the original catalog have a guarantee, but you can also buy a “non-original” product of quite high quality. Moreover, the price is much more preferable.

Article Lemforder 31243 01

Racks from Lemforder (Exist catalog number - 31243 01) can be considered a worthy alternative to factory ones (original catalog number - 6001547138 or 8200277960).

Considering the condition of our roads, Loganovody often choose polyurethane racks. The service life of such racks is longer, and reliability is better. But they also cost more!

X5 resource 37-0009

Conclusion

The process of replacing the stabilizer strut with a Renault Logan is not very difficult. Therefore, every owner of this car can do the operation. If, after installing a new part, the car still behaves “unassembled” on the road, then and.

Most Renault Logan owners are interested in the process of replacing such low-resource chassis parts as the transverse stabilizer struts. Diagnosing a failed element does not provide for the need for special and expensive equipment, and replacing the stabilizer struts is very simple, as well as replacing the stabilizer rubber bands.

Lateral stability is important at the time of maneuvering in corners and on suburban highways, and the suspension present in the design allows you to provide the car with this quality. Due to the perception of constant loads from transverse displacements, the racks are subject to wear. And then it is necessary to replace the rubber bands of the stabilizer and other parts. For the purpose of simplifying repairs, the manufacturer has provided for the simplicity of the design of these elements, which can be safely called consumables.

About modifications

Some modifications of Renault Logan provide for the presence of a stabilizer in the design of the rear suspension. Those owners of the model who have versions without rear stabilizers have the opportunity to install them themselves.

Here, the unpleasant moment is the loss of warranty service for the Renault Logan car, which has such a status. This factor deters many owners from attempting to manually intervene (stabilizer installation) in the factory design.

Running gear features

The rear axle of Renault Logan does not provide for the presence of racks, since the design is based on a continuous beam. Initially, this node is able to do without the presence of the elements in question. Fluctuations in the vertical plane are very negligible, and the body is protected from lateral rolls by a horizontal bar fixed on the axis.

If you touch the front chassis, then in its design there is a transverse stabilizer bar. The manufacturer declares that the absence of this element cannot have a negative impact on reducing the level of safety in motion. But practice shows: the presence of this part will not interfere with the confident behavior of the Renault Logan car.

How to diagnose?

It is quite difficult to independently diagnose a failed rack when it is necessary to replace the bushings of a stabilizer or other element. The sound of its hinge is very similar to the sound that a ball joint on the lever that has become unusable makes. If there are other negative sound effects, then you can suspect the Renault Logan steering rack in the wear of its elements.

A fairly effective search for the source of a knock will be the impact on each suspension joint individually. To do this, we press the rack with a mount and if this action succeeds, then we definitely resort to replacing the worn part, sometimes it is possible to replace the stabilizer bushings. The most reliable way to detect a faulty stabilizer link is to dismantle it, after which the worn hinge will play backlash under the influence of manual effort.

Replacement

The work involves the presence of a minimum of tools, because the replacement of the stabilizer struts is quite simple.

Stocking up in advance:

• Open-end keys on: "10" and "13";
• Key "TORX T40";
• Head with the 18th standard size.

The procedure is performed according to the following algorithm.

• We hang out in front of Renault Logan by means of jacks. Don't forget to secure your car with car stands. We recommend installing them under the subframe, which is especially important when dismantling not only the racks, but also the stabilization bar itself.
• Before the start of the "operation", we process the threaded sections with a penetrating agent.
• We unscrew the nut from the stabilizer strut fixing bolt, and then knock it out with a hammer.
• Next, unscrew the bolts that fasten the stand itself directly.
• Until the rack is removed, we “throw off” the brake hose from the bracket, which will ensure its safety during the indicated work.
• The last step is to dismantle the rack mounting bushings (they must also be replaced).
• Having dismantled both racks, we redirect our efforts to remove the bar. Here you should apply the technique of holding the nut with a Torx wrench with a size of "40". We unscrew it and then take out the bushing itself.
• Next, we proceed to unscrewing the two bolts with which the anti-roll bar is fixed to the surface of the subframe.
• We unscrew the nuts fixing the brackets. After these manipulations, the pillows with which the anti-roll bar is equipped are hooked with a suitable screwdriver and removed (can be taken aside).
• Instead of dismantled pillows, it is recommended to install new analogues.

The assembly process is carried out according to the reverse algorithm. In this node, it is desirable to replace the entire list of components, which will allow you to forget about the malfunction for a certain period.

Conclusion

The material presented here shows the sequence of actions aimed at implementing the procedure for replacing the stabilizer struts in the Renault Logan model. It is not complicated, which once again confirms the practicality and design simplicity of this car.

Anti-roll bar Renault Logan - a special design that has a U-shape and operates in two modes - twisting and stretching. What are the features of such a detail? What functions does it perform? In what cases is it necessary to replace the anti-roll bar? Consider these and other questions below.

Purpose and design features of SPU Renault Logan

When driving along a curve or when entering a turn, a group of centrifugal forces acts on the car body. The emerging loads are evenly distributed between the various elements of the car. In this case, part of the load is removed from the internal and transferred to the external wheels. As a result, a transverse roll appears, which leads to body sway, impairs handling and reduces vehicle stability.

During the production process, developers do their best to eliminate the processes described above. If this work is not done, the controllability of the machine deteriorates, and the tendency to overturn increases. The amount of roll and its level largely depend on the suspension travel. The larger it is, the higher the roll. To eliminate the mentioned problems, the following methods are applied:

• Installation of an additional node that would play the role of an elastic element. In many cars (including Renault Logan), this function is performed by an anti-roll bar.

• Installing shock absorbers with a small stroke and limiting the movement of the levers. This option is usually used on sports cars.

The Renault anti-roll bar performs the following tasks:

• Alignment of the car body during sharp maneuvers on the road.
• Reducing the level of roll that occurs when cornering.
• Redistributing the load between the wheels.
• Improving the quality of the grip of the car with the road.

Structurally, the stabilizer has the form of a metal rod having a circular cross section. Bushings and mounting clamps are used to fix the device to the body. The task of the bushings in the Renault anti-roll bar is to prevent the device from scrolling while the car is moving.

It is combined with the stabilizer suspension elements using shock absorber struts and special levers. The switching itself is carried out using stabilizer racks.

How does the device work?

The principle of operation of the Renault anti-roll bar is as follows:

• In the presence of angular vibrations, as well as when tilted to the left or right side, the stabilizer rods also move. As a result, the stability of the car is ensured. At this stage, bushings are no less important, which allow the device to twist in the middle.
• Renault's stabilizer resistance increases immediately after the bank rises. As a result, the body is leveled, additional stability is added. At the same time, the traction bars guarantee optimal tire grip on the track during sharp turns.

How the SPU functions can be clearly seen in the video below.

The transverse stabilizer performs its tasks the better, it has a more rigid design. This indicator depends on a number of key factors:

• Traction locking geometries.
• Knot shapes regarding the bottom of the car (bottom).
• The type of characteristics used in the production process, as well as its quality.

The installation of high-quality SPU on Renault guarantees cornering stability even when driving at high speed. At the same time, the driver practically does not feel the inclination of the body part to one side or the other. By adjusting the rigidity of the SPU, it is possible to correct the stability and controllability of the vehicle.

Advantages and disadvantages

The Renault Logan transverse stabilizer has its advantages and disadvantages. The pluses include:

• Manageability improvement.
• Reduce roll during sharp turns.
• Reliability and long service life.

On the other hand, the stabilizer has a number of disadvantages. In particular, it reduces the travel of the independent suspension and “steals” a number of other useful qualities from it. For this reason, the device is installed on passenger cars, and is rarely mounted on SUVs. In such cars, a special stabilizer is used or they are not used at all.

How to replace the anti-roll bar Renault Logan?

Repair or replacement of SPU on Logan is carried out in a situation where obvious deformation was noticeable during the inspection process. In addition, the device is subject to repair (replacement) if the elasticity of the sleeve deteriorates. In the latter case, the element needs to be replaced.

Damage can be recognized by the following signs:

• The car starts to pull to the left or right.
• There are suspicious knocks in the front suspension.
• Inspection showed the presence of deformation of the product.

The device is replaced according to the following algorithm:

How to make a replacement, you can watch the video:

How to change stabilizer bushings on Renault Logan?

The SPU sleeve plays a key role in ensuring the operability of the assembly as a whole. The appearance of a thud often indicates the destruction of the gum and the need to replace it.

“It is not worth tightening with the installation of a new bushing, because if this assembly is destroyed, the comfort of the trip decreases and the stability of the car decreases”

If the sleeve is serviceable, then longitudinal or transverse backlashes are excluded. In addition, the bar itself must be securely fixed by devices and not scroll in its axis.

To change the bushings yourself, proceed as follows:

• Prepare the key for "ten" and the head for "eighteen".
• On the left, clean the mounting studs and treat them with WD-40. This facilitates the process of twisting the nuts.
• Unscrew the nut to "ten", and then - the bolt to "eighteen".
• Dismantle the bushing bracket and change the device.
• On the right, dismantle the rubber bands from the muffler, the protection of the fuel and brake system pipes (if required).
• Twist the stabilizer bushing stud and change the device.

How to change the bushings, you can watch the video:

Timely Renault repair and replacement of faulty elements reduces the risk of deterioration in vehicle handling and stability. The main thing is to diagnose the problem in a timely manner and act competently in the process of troubleshooting. If there are difficulties, you can always watch the training video and do the work.

Many domestic motorists prefer the French auto industry in the face of many models, including the Renault Logan. Responsible drivers try to take proper care of their vehicles by carrying out maintenance in a timely manner. Not the last place here is occupied by the suspension of the car and the anti-roll bar ("Renault Logan" (SPU), in particular, we will consider in the article).

Carrying out diagnostics of the chassis is not as difficult as it might seem at first glance. Special and expensive equipment is not required here, minimal skills and knowledge are enough.

But what is this SPU? As practice shows, not all drivers even understand what kind of detail this is. These gaps in knowledge will need to be filled.

Nice problem for car owners

There are significant benefits to owning your own car. Modern life accelerates the pace, and it becomes problematic to be in time everywhere and everywhere. For this reason, many people buy cars, which are becoming more and more. In this regard, transport has already ceased to be only a luxury item, now for many people it is the first necessity.

However, everything pleasant has a downside. To keep your car in working condition, you need to have a decent budget for the purchase of the same anti-roll bar, Renault Logan, for example, and strong nerves.

But the hitch is still not financial, there are technical issues. Any car, especially modern models, is complex, and it is still difficult for an inexperienced driver to understand what's what. But over time, being interested in many details, you can gain invaluable experience. This will allow you to fix many malfunctions on your own, without the help of specialists.

What is SUP?

Essentially, an anti-roll bar is a connecting piece that links opposite wheels. And since it experiences significant loads, it must be sufficiently elastic. For this reason, such parts are currently made of the torsion type.

The design of the anti-roll bar is made in the form of a U-shaped round cross-section rod. Often this element is made of spring steel, which, due to its physical properties, is best suited. Depending on the brand of the car, the stabilizer can take any other necessary shape.

The part is attached to the body by means of rubber bushings and clamps. Due to this, the rod can rotate, which is associated with the features of its operation. SPU can be placed in front or behind the car.

Necessity?

Now we need to touch on the question of what is the need for SPU. The thing is that when the car enters the turn, the body rolls in the opposite direction. And the value of such an angle is directly dependent on the centrifugal force and the suspension device.

If there were no rear or front anti-roll bar ("Renault Logan" also has it), the number of accidents would increase. As statistics show, most of the accidents on the roads are associated with overturning vehicles. In other words, drivers enter a fairly sharp turn at speed, and exit it already lying on their side. Is this situation familiar? True, now it does not occur so often, since the whole thing is just in the SPU.

Consider the case of an independent suspension of a car. When he makes a turn at speed, the wheels on one side are loaded more than on the other, which, on the contrary, are unloaded and tend to break away from the road. This is where the whole benefit of the SPU comes into play. It evenly distributes the load between opposite wheels. That is, the torsion bar is untwisted, while one part of it rises, and the other falls. This reduces the roll angle and keeps the vehicle level.

For your information, the Renault Logan anti-roll bar successfully resists loads only in the transverse direction. He is not able to cope with vertical (entry of both wheels into the pit) and angular vibrations.

Disadvantages of the stabilizer

With all the significant benefits of SPU, it has a number of disadvantages:

• The presence of this element in the design of the chassis of the car negates the properties of an independent suspension.
• Installing a stabilizer on an SUV will adversely affect its cross-country ability. There may be a risk of hanging the wheel on bumps.
• If an excessively rigid connection with the wheels is established at the rear of the car, this will also have a bad effect on steering.

It is possible to eliminate the listed shortcomings, only this is due to the complexity of the design. For example, in a number of SUVs, the stabilizers are turned off if necessary.

There is also a radical method - adaptive suspension, which does fine without any anti-roll bar. "Renault Logan" is not threatened. Unfortunately, this is only true for business class models.

Nuance

Not every Renault Logan has a front or rear stabilizer. Due to the continuous beam that is available in the rear suspension, the bar is installed without racks. Vertical oscillations are insignificant here, and a horizontal bar, which is fixed on the axis, saves from transverse loads.

Sometimes there may be no stabilizer in front of the car. In many ways, the presence of this element is an additional option. And according to the assurances of the manufacturers, this will in no way affect the safety of driving.

However, many drivers do not want to operate the Renault Logan without an anti-roll bar and install it on their own. Only here it is worth considering that if the car is still under warranty, then in the course of any independent intervention in the design of the vehicle, it is automatically canceled.

According to most experts, the presence of SPU in the suspension of a car is desirable for frequent trips outside the city. In the case when the transport is operated mainly in the city, then there is not much difference in whether there is a torsion bar or not.

SPU diagnostics

The stabilizer is difficult to diagnose, and therefore it is very difficult to determine whether the entire element needs to be replaced, or only its bushings or other parts. If there is any malfunction, then the knock emitted can be confused with the sound of the ball joint of the lever that has become unusable. Some other signs may indicate problems with the steering rack.

Before you think about installing an anti-roll bar on the Renault Logan, you should carefully examine the suspension for backlash. For this, a mount is useful, which you need to squeeze the rack. If it was possible to do this, the SPU must be replaced.

However, this method of diagnosing does not always give a result. Then it remains to remove the stabilizer and calmly inspect each hinge. If it is worn, then it is easy to move it by hand.

The failure of the SPU bushings is a frequent and unpleasant phenomenon. Often these elements are frayed or completely burst. This is expressed in shaking the car when driving over any bumps. In addition, the body constantly heels, which is not good.

Do not ignore the signs of obvious malfunctions of the STC or its parts, since this can result in not only unreasonably high costs. It may be necessary to repair the entire suspension over time.

Preparation for work

If a torsion bar malfunction has been identified, it makes no sense to contact the nearest service station. You can do all the work yourself, you just have to prepare everything you need. For your information, the article for the Renault Logan anti-roll bar is 6001547137. Among the tools you will need:

• open-end wrenches for 10 and 13;
• wrench T40 (Torx);
• head 18;
• jack;
• stand.

After everything is prepared, you can go directly to the procedure.

Work on the replacement of SPU

The work can be done all alone, but it is much better to enlist the support of acquaintances or friends. Then everything will go smoothly and you definitely won’t be bored.

The whole procedure can be divided into several stages:

1. First you need to raise the front of the car, and install stands for insurance from the bottom of the subframe. Without this, you can not do without, if necessary, remove the entire bar, and not just its racks.
2. Remove the protection, treat all threaded connections with a special tool WD-40 (liquid key).
3. Next, you need to unscrew the nut from the bolt on which the SPU rack is held, and the fastener itself is knocked out using a spacer and a hammer.
4. After that, you can proceed to unscrewing the bolts that fix the rack itself.
5. Before removing the racks, you need to throw off the brake hose from the bracket so as not to damage it.
6. Then you can remove the bushings that hold the racks. They also need to be replaced.
7. At this stage, replacing the anti-roll bar with Renault Logan, you can proceed to the direct dismantling of the SPU. Here you need to hold the nut with a Torx key. After unscrewing it, the sleeve is removed.
8. At the next stage, you need to unscrew the fasteners that hold the SPU on the subframe (there are two of them).
9. Now you can unscrew the nuts securing the brackets. After that, it remains to pry the pillows with a screwdriver and take them to the side. They also need to be replaced.

Assembly is carried out in the reverse order. It is recommended to change all bushings and silent blocks in any case, even if they are not damaged.

Outcome

As you can see from the stabilizer replacement instructions above, the whole job is really simple. It is enough to follow the sequence of actions. This once again suggests that the Renault Logan car has a simple device, at least its suspension.

But if there is no time to mess with the anti-roll bar on the Renault Logan due to heavy workload, you can entrust this matter to the auto repair shop specialists. They will do all the work quickly and professionally. The cost of work is usually 500 rubles. Here everyone decides for himself whether to pay for a qualified service or to enrich himself with experience. In any case, car owners will not lose.

Before installing a new Renault Logan anti-roll bar, it is recommended to find out its principle of operation.

Purpose of the device

The functions of the unit include:

• stabilization of the position of the vehicle on the road;
• reduction of body roll when cornering;
• increase the grip of wheels with asphalt;
• even load distribution.

The Renault Logan stabilizer is presented in the form of a metal beam, each side of which is attached to the axle wheels. Experts distinguish between front and rear racks on Logan. To install them, use bushings. The design in question is fixed to the car body.

When replacing a device, its rigidity is taken into account. This parameter of the front stabilizer has a direct effect on the steering of the vehicle at the beginning of the movement. Due to the increased rigidity, roll increases, traction on the front wheels decreases, traction on the rear wheels decreases. With a low stiffness value, lateral roll is reduced. To ensure greater reliability, completely eliminating the possibility of a rollover of the car, a soft front stabilizer is installed.

The device in question is a Renault Logan suspension component. The unit connects the wheels due to the stop. Spring steel is used for the manufacture of large-section and U-shaped rods. In this brand of car, the stabilizer is located across the body. It is fixed with clamps. Stabilizer bushings provide rotation of the main structure. The device is fixed to the suspension by shock absorber struts or levers.

Front link: 1 - suspension subframe; 2 - suspension arm with silent blocks and ball joint; 3 - steering knuckle with hub and bearing; 4 - shock absorber; 5 - anti-roll bar.

If the bushing burst, then the suspension performance deteriorates. In this case, the vehicle is repaired. Auto mechanics recommend installing polyurethane bushings and stabilizer struts for Renault Logan.

Instructions for replacing the unit

To replace the anti-roll bar, disassemble the chassis. The replacement of the stabilizer bar, bushings and the main device is carried out using a jack, a set of keys, coupler heads. Experts recommend replacing the stabilizer components in pairs (to ensure uniform wear).

Pre-dismantle the stabilizer protection. It is bolted on. Since the standard protection is made of plastic, it is recommended to replace it with a metal structure. To unscrew the earrings, use a standard ratchet. The new stabilizer is raised. The bushings are inserted into the sockets, the earrings are fixed. The last operation is carried out with moderate force. The protective structure is installed in place.

To replace the parts of the anti-roll bar, use the keys to "10", "13", the socket head to "18", TORX T40. First unscrew the nut of the stabilizer bar fixing bolt. In this case, it is necessary to keep the bolt from turning. Then the lower silent block is dismantled. The rubber bushing is dismantled. The next step is to remove the rod fixing bolt and eversion the rear subframe mounting bolt. If it is necessary to unscrew the 2 rear subframe mounting bolts, then the stops are preliminarily installed under the structure.

Then unscrew the fixing nut of the rod bracket. To remove the rubber cushion, you will need to pry with a screwdriver and remove the rod mounting bracket. If the silent block and pillows are worn out or damaged, then they are replaced. New parts are purchased taking into account the VIN code and the technical characteristics of Renault Logan.

In the same way, remove the 2 bolt fixing the rod and the fastening bracket. Then the stabilizer bar is dismantled. Parts are installed in reverse order.