Replacing front and rear brake pads of Daewoo Nexia (Daewoo Nexia)

The brake system is one of the most significant elements of a car. It is necessary to always keep this system in good condition, and also start tuning with the brakes.

Rear wheel brake mechanism : 1 – support strut; 2 – lower tension spring; 3 – parking brake drive cable; 4 – release spring of the parking brake cable; 5 – front brake pad; 6 – spring of the mechanism for automatically adjusting the gap between the shoes and the drum; 7 – spring earring of the mechanism for automatically adjusting the gap between the shoes and the drum; 8 – pressure lever of the mechanism for automatically adjusting the gap between the shoes and the drum; 9 – working cylinder; 10 – spacer bar; 11 – upper tension spring; 12 – rear wheel brake shield; 13 – rear brake pad; 14 – parking brake release lever

The Nexia has disc brakes at the front and drum brakes at the rear. We will talk about replacing the rear brake pads. The frequency of replacing rear brake pads in the drum is approximately 40 thousand to 100 thousand km.

How do you know when it's time to change? Firstly, the mileage these pads have gone through. For example, if you forget to turn off the handbrake and drive a few kilometers, you may forget about the brake pads and will have to change them much earlier.

The correct way is to remove the brake drum and inspect the linings; the minimum permissible thickness of the brake pads is 1.5 mm.

Replace the pads in the following cases: – the thickness of the friction linings is less than permissible;

– the surface of the linings is oily;

– the friction lining is not firmly connected to the base;

– deep grooves and chips appeared on the linings.

WARNINGS Do not use gasoline, diesel fuel or any other solvents to clean brakes. The pads on the Nexia need to be changed on both sides (right and left) at once. It is prohibited to replace the front and rear pads between each other, as well as between the left and right wheels - this can lead to uneven braking.

Features of the Daewoo Nexia brake system

On Daewoo Nexia cars, the manufacturer provides for the installation of two independent brake systems.

Working. The main system, which is designed to provide braking during any vehicle movements. It is equipped with a hydraulic drive.
Parking lot. A system with the help of which the braking process is carried out on an already stopped vehicle. It has a mechanical drive.

The use of a service brake system with diagonally separated circuits improves safety when driving. One of the hydraulic drive circuits controls the operation of the front left wheel and the rear right wheel, and the other circuit controls the front right wheel and the rear left wheel. If a failure occurs and one of the circuits of the working brake system fails, then the load falls on another circuit, which is capable of ensuring a complete stop of the machine, albeit with a lower percentage of efficiency.

Removing old pads

And now more about how to replace the rear brake pads with your own hands. You need to start by disassembling the entire mechanism:

Using pliers, you need to disconnect the spring, which is installed on the automatic adjustment device. After this, remove the spring completely.
Gently hold the stand and press down on the cup to rotate it 90 degrees. After this, remove the spring from the support post and the cup.
Remove the support post.
Repeat the operations with the second block.
Hold the pads and disconnect the springs that tighten them at the top. First, disconnect the spring from the block that is located closer to the front of the car.
Move the pads apart and disengage their levers from the handbrake cable.

Be sure to check the condition of all springs. They should not have any defects. If there is wear or other damage, replace these elements. It is recommended to install new springs and spacers during assembly.

Replacing the front brake pads

Replacing the front brake linings on a Daewoo Nexia car will be required when there is wear on the friction linings, when the connection between the linings and the base is not strong, when the working surface of the linings is oily and when there are grooves and chips on the linings.

To replace the front brake linings on a Daewoo Nexia, you need sliding pliers, 14mm wrenches and for unscrewing the wheel bolts.

Remove the front right wheel.
Unscrew the bolt that secures the caliper at the bottom.
Lift up the caliper.
Remove the brake pads by lifting them off the guide.
There is a metal plate on the brake lining located on the inside; it should be removed and placed on one of the linings in the new set.
Take pliers and use them to press the piston onto the working cylinder.
Install new brake pads and reassemble all removed parts in reverse order. To avoid spontaneous unscrewing of the bolt that secures the caliper, before installing it, apply thread locking agent to it.
By analogy, perform the operation to replace the brake linings on the left wheel.
Check whether there is enough fluid in the brake master cylinder reservoir; if there is not enough fluid, top it up.

Caliper - solution to the Nexia problem

Brake caliper for Daewoo Nexia

Any motorist, and not only knows that the car’s braking system is important and significant. Her duty is to reduce the speed of transport as quickly as possible until it stops completely. Initially, the designers intended that for greater efficiency there should be several such systems.

The Daewoo Nexia is equipped with coordinated operation of three such systems: parking, emergency and working.

The parking system is a handbrake. Its task is to keep the car stationary when parked. It is also used as a backup (emergency) option in case of unexpected failure of the working braking system. The role of stupor is performed by the brake mechanisms on the rear wheels of the car.

The main one is the working braking system. To activate it, simply press the pedal intended for this purpose, ensuring a smooth reduction in speed.

The Daewoo Nexia has disc brakes on the front axle and drum brakes on the rear axle.

Disc braking system

The brake disc, pads and caliper together make up the disc system. A front caliper is fixed above the rotating disk, which also has special grooves for coupling with the working cylinders of the drive.

The pads are pressed tightly against the body using springs.

Playing the role of a “hydraulic vice,” it ensures the safety of all road users: both car passengers and pedestrians, being the main element of the braking system.

Not every car enthusiast understands the principle of brake operation from a physics point of view. But it is important for everyone to ensure their smooth operation. To do this, it is necessary to identify the malfunction in time and carry out repairs.

On Daewoo Nexia you sometimes have to change the standard front calipers. There may be several reasons: the outer block wears out, the cylinder seals leak oil, the guides rust from excess moisture and dirt.

Therefore, if one of the elements malfunctions, it would be wise to replace the others by purchasing a brake system repair kit. For this Daewoo model, a kit designed to repair Lanos is perfect.

The assembly of such a repair kit includes guide pins, seals, and brackets.

The advantages of the change are obvious:

The mileage of brake pads will increase (instead of 15,000 km - 50,000)
Increases braking efficiency by 30%

Disc brake system Daewoo Nexia

Replacement process

Jack up the car and remove the front wheel.
Using a screwdriver as a lever, separate the pads from the drum and, unscrewing the mounting bolts of the fingers, remove the “original” caliper.
Regarding the brake hose: it is better to disconnect it while the “hydraulic vice” of the car is fixed.
Take the hose into a pre-prepared jar (for dripping liquid).
Then remove the pads along with the pressure plates. If the brake disc also requires replacement, remove it too.
Next, using the repair kit, install new spare parts.
Carry out the work in reverse order.
To secure the hose, be sure to buy a new copper or aluminum washer, as it is compressed during operation.

The purchased kit also includes pads. Codes for purchase through Exist.ru: 96234339 and 96234340.

A kit intended for repairing Daewoo cars, consisting of pins, seals and brackets, made in China, goes under the code 93740249. The replacement is carried out similarly on the other side.

Front brake system Daewoo Nexia

I hear a ringing - I know where it is

After running about 10,000 km, the Nexia “hydraulic vice” begins to ring. The repair is quite simple. You need to buy aerosol lubricant and be patient.

Remove the wheel and use a 14mm wrench to unscrew the two bolts holding the movable part of the caliper. Pull out the guide pins and anthers. Clean all parts from old grease. Treat all removed components with new grease and reassemble the entire system. In this case, do not lubricate the guides too much, since excess oil is observed during assembly. The repair will not take more than half an hour.

To increase the service life of all components of the braking system, you can replace them with similar parts from the Opel Vectra. The front clamps also fit perfectly on the Nexia.

Important!

Brake pads should only be replaced as a set, which means that the pads on the front axle of both wheels must be replaced at the same time.
Before replacing the brake pads, you should check the brake master cylinder reservoir. If the brake fluid level is close to the maximum mark, then you should pump out a little fluid, because after installing a new set of linings, the level will certainly rise.
If there are no metal plates in the new set of brake pads, they should be replaced with the old pads.

Which pads to choose

Original Daewoo pads 96281937 were installed from the factory. The cost of the set at the moment is from 950 rubles. In addition to the original pads, in stores you can find a large selection of analogues at more affordable prices.

ADR (Russia) ADR290611 price from 400 rub.
AMD AMDBF171 price from 550 rub.
Fenox BP43013 price from 650 rub.
Markon 13200170 from 450 RUR
Pilenga FDP7003 from 450 RUR

Before purchasing analogue brake pads, be sure to check with the seller whether the pads you are purchasing are truly suitable for your car.

Useful tips

After replacing your brake pads, take your time to get out onto the highway or a busy highway as quickly as possible. Most likely, the first time you brake, you will feel low brake efficiency. Brake discs are also subject to wear and therefore new pads will only come into contact with the disc at the edges. It will take some time for the pads to grind in and smooth out any unevenness and ensure a better fit.

Once you have made the change, try not to brake suddenly and avoid emergency braking. Strong heat can cause the top layer of linings that have not yet been broken in to burn and the brake pads will be less effective for some time.

How to replace discs on the rear axle of a Nexia: step-by-step instructions for beginners

The installation of a new set of brake discs on the rear axle of the Daewoo Nexia is carried out in a similar way, but has a couple of features due to the difference in the wheelbase design. To replace the disks, you will also need up to an hour of free time and a set of wrenches and sockets, a jack, a slotted screwdriver or a small crowbar for beading the wheel and a wheel wrench. The replacement procedure is as follows:

First you need to park the car on a level surface, then move the gearbox selector to the first or reverse gear position;
Next in the cabin, under the rear seats, you need to find a small hatch that will provide access to the handbrake cable system. On each power element it is required to loosen the tension as much as possible;
Now lift the rear of the vehicle and remove the wheel. Afterwards, we disassemble the brake mechanism, unscrew the housing and take out the brake pads, having previously disconnected the hook adjacent to the cable from the handbrake from the top. Now you will have access to the brake disc, which we also remove by unscrewing all the fixing fasteners;
We wipe the new disc with alcohol and put it in place, after which we install a new set of brake pads. To complete the procedure, put the wheel in place and repeat similar operations on the other side of the car.

Otherwise, an abrasive groove may form on the unlapped surface of the brake disc, significantly reducing the service life of the part. Properly carried out running-in will extend the life of both the brake mechanism and other vehicle systems, and will also ensure maximum safety for the driver and passengers in the cabin while driving.

Rear drum mechanism

The design of the Daewoo Nexia car provides for the installation of a drum-type rear brake system. In addition, the gaps between the drum and the pads are automatically adjusted.

The mechanism of operation of drum brake pads is simple. They interact with a hydraulic brake working cylinder equipped with two pistons. The gap is set on a spacer bar and a mechanical adjuster is used to maintain it.

The parking brake for Daewoo Nexia is equipped with a mechanical drive and consists of: a lever, a cable in a sheath, an equalizer and release levers standing on a spacer bar.

The parking brake does not require special care. When repairing, inspect it for possible wear, evaluate the serviceability of the pawl and sector teeth. If severely worn and faulty parts are found, they should be replaced.

Preparing for repairs

Before replacing the rear brake pads (Daewoo Nexia), be sure to perform the following manipulations:

Place wheel chocks under the front wheels.
Loosen the mounting bolts on the rear wheels.
First jack up one side of the car, then the other. Your goal is to hang out the entire rear of the car.
Remove the wheels.
Remove the nuts that secure the rear brake drums.
Carefully, trying not to damage, knock down the drums.

After carrying out these manipulations, you can begin replacing the rear brake pads. Your Daewoo Nexia will be like new! Pay attention to the inner surface of the drums - if it is uneven, you will need to sharpen the parts. This should only be done on a lathe. After such an intervention, it is necessary to carry out balancing so that there is no axial runout after installation.

Replacing rear brake pads

Drum pads will need to be replaced in the same cases as for the front pads.

To independently replace the rear brake pads on a Daewoo Nexia, you need pliers, wrenches for unscrewing the wheel bolts, two screwdrivers (flat and Phillips).

Put the car in first gear and secure the position of the front wheels with blocks for support.
Make sure the parking brake lever is fully depressed.
Remove the right rear wheel.
Check the brake fluid level; if necessary, pump it out.
Remove the brake drum.
Take pliers or a screwdriver and disconnect the tension spring from the top.
Also use pliers to clamp the shank on the support post, pressing on the washer and turning it, remove it, and with it the support post and the front pad spring.
The front trim is removed along with the clearance adjuster.
Remove the tension spring located at the bottom and remove the spacer bar.
Then remove the spring, support post and washer on the rear shoe.
Move the rear pad back and remove the release lever from the parking brake cable.
Disconnect the spring to adjust the gap.
Remove the adjustment lever and shackle.
Remove dirt from the spring, shackle and adjuster lever. Install everything onto the new brake pads in reverse order.
The front and rear lining of the brake drum comes into contact with the brake shield and in places of friction a refractory lubricant is required, which is intended for brake mechanisms.
Lubricate the threads of the bar and tighten the nut completely, but do not tighten it.
Take pliers and compress the pistons of the brake cylinder. Install the brake pads in reverse order.
Put on the brake drum.
Press the brake pedal 10 to 15 times to adjust the gap between the drum and the brake linings. As soon as you press the pedal, the controller will click. The gap will be set when the clicking stops.
Secure the wheel in place and check that it rotates easily.
Similarly, replace the brake linings on the left wheel.
Once the brake lining installation is complete, the parking brake system needs to be adjusted.

Choosing good pads (articles)

Korean Hi-Q pads are the best option in terms of price and quality ratio.

As in the case of rear pads, the choice of front pads for Nexia is extremely wide. This is due to the fact that almost the entire line of Korean cars developed on the basis of Opel (Lacetti, Aveo, Lanos, Sens, Nubira, Espero) have a lot of identical spare parts. For example, Nexias with 16-valve engines are produced with 14-inch wheels. Therefore, the pads from the Lacetti (with an anti-squeak plate) become like family in the Nexia calipers. However, you can experiment and choose the best option that suits your driving style and wallet thickness:

Everyone agrees that the optimal front pads are Korean Hi-Q with catalog number 96281937 . Optimal both in price and quality.
If we want to save money, we will install budget ABE . For a quiet ride, these organic pads will completely recoup the entire 600-700 rubles they ask for a set.
Polish QAP pads with the number will cost approximately the same price 94520003 .
Another contender for the role of leader in the budget sector is the Koreans Kashiyama . The quality is good, the price is slightly above average. Catalog number - np1441 .
Ferodo - high price and absolute versatility. They don't creak and generate little dust. Suitable for both active driving and relaxed driving. However, the mileage depends on the condition of the brake disc, so you should not overpay and install them on sawn discs.

Useful tips

To clean the brakes, do not use fuel or mineral solvents.
Necessarily! Brake pads should only be replaced with a set of four pads, for both wheels of the same axle.
Avoid confusion when installing the front and rear linings of the rear brake drum, and also do not move them from one wheel to another, uneven braking may occur.
When you decide to replace the rear brake pads, remember that the manufacturer recommends replacing the spacers, springs and support struts. They usually don't come with the pads, so be sure to purchase them separately. Do not confuse the components of different sides; they are not interchangeable.

Replacement frequency

Replacing the rear brake pads of a VAZ 2115
No one will say exactly after what period it is worth replacing the brake pads, since it depends on a large number of conditions:

Quality of the lining;
Condition of the brake drum and cylinder;
Serviceability of the sliding mechanism;
Vehicle operating conditions;
Driver's driving style.

Attention! If the drum is severely damaged, the pads will quickly fail. Brake pads can last 5-100 thousand kilometers

The service life depends on the above factors and luck. Therefore, their serviceability must be closely monitored. You can identify failing pads by the sound from the brake drum, as well as by the intensity of braking.

Brake pads can last 5-100 thousand kilometers. The service life depends on the above factors and luck. Therefore, their serviceability must be closely monitored. You can identify failing pads by the sound from the brake drum, as well as by the intensity of braking.

Pad selection

At the moment, there are no problems with choosing and purchasing pads, since pads suitable for Daewoo Nexia are found on a large number of cars: Daewoo Lanos, Espero, Nubira, as well as on some budget Chevrolet models, which are descendants of the Opel Kadett.

The advantage of drum brakes is their cost and ease of maintenance.

Some models of brake pads, sorted by descending price:

The highest quality and most expensive are Ferodo FSB-335. These German-made pads are popular in Russia, although they do not sell very well. The price is about 5 thousand rubles.
Another German model is Zimmermann. They cost 4 thousand rubles, which is twice as expensive as the original ones.
Factory pads Hi-Q SA-055 from a Korean manufacturer. The quality is not much inferior to their German counterparts, but they cost only 2 thousand.
Onnuri is also a Korean model, but costs a little less – 1.5 thousand.
Rider is a model from a Hungarian company. The cheapest on this list.

Prices are approximate. They may vary in different regions of the country, and also become more expensive/cheaper over time.

When dismantling old brakes, it may turn out that it is not only the pads that need to be replaced. It will not be superfluous to buy a complete repair kit, which includes almost all components of the brake mechanism. It costs around 500 rubles.