DIY vaz 2114 caliper repair

On all cars of the tenth family, including VAZ 2114, 2115 and 2113, there are problems with the brake system, such as wear on the caliper guide pins. As a result, the following problems may arise:

1. Knocking and rattling from the caliper side on uneven roads (especially on dirt roads or gravel)
2. Uneven wear on the front brake pads where there is noticeably more wear on one side than on the other
3. Jamming of the caliper bracket, which can lead to an emergency
4. Decrease in braking efficiency VAZ 2113-2115

To solve this problem, it is necessary to revise the caliper, namely to replace the anthers and guide pins. Also, it is imperative to lubricate the fingers with a special compound.

So, to complete this repair you will need:

• Key 17 and 13 mm
• Brake cleaner
• Caliper Grease
• Flat screwdriver

If you want to get acquainted with a step-by-step video and photo review, you can watch it on the website my.housecope.com/wp-content/uploads/ext/1409 in the material: Revision of the VAZ 2110 caliper. The main points on this repair can be found in the article below ...

The first step is to jack up the front of the machine. Then we remove the wheel and using a flat-blade screwdriver, it is necessary to bend the locking washers of the caliper bolts.

Then we unscrew the two mounting bolts at the top and bottom, as shown in the photo.

Next, we squeeze the brake cylinder with a screwdriver, inserting it between the bracket and one of the pads.

Then you can lift the cylinder with the bracket up, as shown below, and take it to the side so that it does not get in the way.

And now you can easily remove the caliper pins, both from above and below, with minimal effort.

Then we clean our fingers from the old grease with a special tool or buy a new one. Also, it is necessary to install a new boot if the old one is damaged.

We apply a special grease for the calipers on the finger and under the boot, as shown in the photo. Then we put our finger in its place to the end so that the boot is securely fixed.

Now you can assemble the entire structure in reverse order, and do not forget to press the brake pedal several times before leaving the place of repair so that the pads take their position in the guide.

To repair or replace the front wheel brake caliper on a VAZ 2108, VAZ 2109, VAZ 21099, do the following:
1. Remove the corresponding wheel from the vehicle.
2. Remove the brake hose seal from the bracket on the rack.

3. Loosen the tightening of the brake hose tip on the caliper.

4. Use a screwdriver to unscrew the tabs of the lock washers and unscrew the two bolts of the brake caliper, holding the guide pins for the hexagons with the second wrench.
5. Remove the bolts and remove the brake caliper assembly with the wheel cylinder.

6. Holding the tip of the brake hose by the hexagon with the wrench, unscrew the brake caliper from the tip. Be careful, brake fluid will come out of the brake hose. Note that the tip has a copper O-ring. Replace the heavily crimped copper ring.

7. Clamp the brake caliper in a vise and remove the two Allen screws securing the brake cylinder to the caliper. Remove the wheel brake cylinder from the caliper.

8. Carefully so as not to tear the boot, remove the retaining ring.

9. Remove the boot from the brake cylinder

10.Using compressed air through the brake fluid holes, remove the piston from the brake cylinder.

11. Carefully, so as not to damage the mirror of the brake cylinder, remove the rubber O-ring.

12. If it is necessary to replace the wheel brake cylinder or the valve itself, unscrew the brake bleeding union. 13. Carefully inspect the mirror of the brake cylinder and the working surface of the piston. If they show signs of wear, damage or severe corrosion, the brake cylinder and piston must be replaced.
14. Replace damaged, swollen, or loose cuffs. It is recommended to replace the oil seal every time the brake cylinder is disassembled, regardless of its condition.
15. Install a new cuff into the groove of the brake cylinder, having previously lubricated the cuff with fresh brake fluid.

16. Insert the lip of the boot into the piston bore.

17. Lubricate the mirror of the brake cylinder and the working surface of the piston with fresh brake fluid. Insert the piston into the brake cylinder and install the outer edge of the boot into the bore of the cylinder body. Install the retaining ring.

18. Install the caliper with the wheel brake cylinder on the car VAZ 2108, VAZ 2109, VAZ 21099 in the reverse order of removal. Before installing the guide pins, lubricate them with UNIOL-1 grease. Bleed a VAZ 2108, a VAZ 2109, a VAZ 21099 brake system on a car.

Welcome!
Caliper - due to it, the car stops, and if we talk in more detail, then in the caliper there is a brake piston and two brake pads due to which braking is carried out when you press the pedal, but sometimes this very piston turns sour or wedges in connection with what to brake the wheel on which the brake caliper with a jammed piston is installed either starts constantly and you cannot do anything about it, or the wheel stops braking altogether and in the end you have only three wheels that stop the car at speed.

Note!
In order to repair the caliper and replace all the faulty parts that are in it, you will need to take with you: The main set of wrenches, a hexagon, as well as a screwdriver, you also need a little new brake fluid and you will also need a vice, since the work will take place with them. much faster and easier!

Summary:

Where is the brake caliper located?
There are only two brake calipers in the car of the ninth family, and they are located only on the front wheels of the car, it will be difficult to see this unit without removing the wheel if, of course, you do not have discs through which the entire brake system of the car is clearly visible, so if you have there are ordinary stamped discs, then you will first need to remove the wheel from the car and only after that you will see the brake caliper in front of you, which is still indicated in the photo below with an arrow for clarity.

When should a caliper be repaired?
In general, in some cases, the caliper needs not only to be repaired, but also to be completely replaced with a new one, but this is only if it was deformed as a result of being hit by something, or even if it is covered with rust that will corrode it over time and as a result of which he and the piston due to which the braking occurs can generally jam.

Well, the caliper itself needs to be repaired if, as already mentioned earlier, the piston is stuck (In this case, the piston needs to be changed and the brake caliper work again), and it also needs to be repaired in case of damage to the bleed fitting (This is treated by replacing the bleed fitting with new), because if it is damaged, then you will no longer be able to bleed the brakes, for example, after replacing the brake fluid, and if you cannot bleed the brakes, then, accordingly, this caliper will not work for you either.

Note!
When the caliper becomes unusable or some of the parts that are inside it fail, then the first thing that will happen is that the car will slow down worse or it will slow down constantly, even though you do not press the brake pedal, so if your the car has such symptoms, then they can be sinned on the caliper itself and the parts that are installed in it!

Disassembly:
1) At the very beginning of the operation, you will need to remove the caliper itself from the car in order to first check its condition, and secondly, replace all that do not work on it. (For how to remove the caliper, see the article titled: "Replacing the brake caliper with a VAZ")

Note!
Before removing this unit, make sure 100% that it is not working, to do this, first just look at its condition, the presence of defects is not allowed, after which you can ask another person (if any) to get into the car and press several times on the brake pedal, and at this time you will have to observe the operation of the very piston that is inside the caliper, it will have to move and, therefore, the brake pads (indicated by green arrows) will have to tightly grip the brake disc indicated by the blue arrows (This is by the way it will be possible to look through the gap in the caliper, which is indicated by a red arrow in the photo below), and when the pedal is released, they will have to unclench and, as a result, move away from the brake disc without preventing it from rotating!

2) Now, when the caliper is removed, install it together with the bracket that is on it in a vice, in exactly the same way as shown in the photo below, and when the brake caliper is clamped using a hexagon, unscrew the two hex bolts that secure the brake cylinder (Inside this cylinder there is the same piston that was mentioned above), and after the bolts are unscrewed, pulling the cylinder itself, disconnect it from the brake caliper caliper.

3) Then, when the brake cylinder is removed, take it in your hands, and using a screwdriver, remove the retaining ring from it, but only when you remove it, be careful not to tear the protective cover that is on the piston and cylinder (It is still indicated by the arrow), in Otherwise, you will have to replace the cover with a new one.

Note!
When the retaining ring has been removed that holds the protective cover, move the screwdriver to the side and use your hands to remove the protective cover from the cylinder!

4) Next, you will need to remove the piston itself from the brake cylinder and if it is deformed or if there is rust on it, then you will have to replace it with a new one, although if there is little rust, the piston can still be polished, about how to do this see the article titled: "The pistons of the brake cylinders are jammed, what to do?" polishing the brake cylinder pistons.

Note!
So what to do if the piston turns out to be rusty, we have already told you, but how to remove this piston from the cylinder was not said a word, and so it is removed very simply, for this you need some kind of special tool inside which will be compressed air and with its help, supplying compressed air through the hole where the brake hose is inserted, remove the piston from the cylinder, for clarity, also look at the video below, but only in the roller it is made more accurate, a stick is inserted there so that the piston does not fly out and does not deform, but also, the supply of compressed air is carried out through the brake hose so that the piston does not fly out abruptly, but it is gradually squeezed out, but in fact, you can not do all this!

5) Next, use a screwdriver again, namely, with the help of it, gently pry and remove the O-ring from the brake cylinder, but when you remove it, try not to damage the mirror part of the cylinder.

Note!
In fact, it is recommended to replace this ring immediately after removing the piston, but still, if you do not have a new O-ring with you, then take a look at the old one and if you do not find any defects on it, for example, such as: Cracks, swelling, loss of elasticity rings, then this sealing ring can not be replaced with a new one!

6) And in conclusion, if you need to remove the bleed nipple and mark it with a new one, then simply unscrew it using a spanner wrench and screw a new one in its place.

Assembly:
The brake caliper itself is assembled in the same way as it is disassembled, but only during assembly you need to know a few details, namely:

1. Before installing the piston into the cylinder, you will first need to install a new O-ring inside the cylinder itself in its place, and before installation, we recommend that you also lubricate it with a little new brake fluid

2. Then take the piston in your hands and you will need to insert it into the inside of the cylinder, but before installing in two stages, install the protective cover, for this, first insert the edge of the protective cover into the groove on the piston itself (see photo 1), and then lubricate it with a new one With brake fluid, the cylinder mirror and the working surface of the piston, sink the piston into the cylinder itself and then put the edge of the protective cover into the groove on the brake cylinder body (see photo 2) and finally put the retaining ring in place so that the protective cover holds.

3. Something else, but this does not concern the caliper, but it concerns the guide pins that hold the caliper bracket, so before you put both guide pins back into place, you need to lubricate them with Uniol-1 grease, or some other nor be like her.

Note!
When the caliper is installed in its place, be sure to bleed the brakes on the car, otherwise the car will slow down very badly, which will lead to an emergency in the future, how to bleed the brake system, see the article entitled: “Bleeding the brakes on VAZ cars”!

Additional video clip:
If you want to see clearly how the brake cylinder is replaced, as well as if you want to hear a couple of practical tips, then watch the video clip below, which shows everything in detail:

The article will discuss how the brake caliper works and how to perform caliper repair do it yourself at home.

When the driver presses the brake pedal, the pads are pressed against the discs and thus the car stops. But unfortunately, they have not yet come up with mechanisms that could retract the brake pads to their original position. They just stop pressing tightly against the discs. Often, after long-term operation, the brake mechanism acquires some malfunctions, which significantly affects the rapid or uneven wear of brake pads and discs, increased noise and an unpleasant odor. The pads overheat and lose their grip at the same time. In short, the vehicle's braking system becomes ineffective.

In fact, there are not so many reasons why such malfunctions are possible. These are either damaged guides along which the caliper moves, or dirt on the working surface that interferes with the free movement of the pads.

Well, or the caliper itself. The last option will be discussed in this material:

-Small amendment: there is still a part in the caliper that contributes to the return movement of the piston after the loss of pressure - this is the cuff. On the one hand, it provides tightness, on the other, it is a kind of spring. Square in cross-section, when the piston moves, it deforms, and then tends to take the form of rest, along the way slightly recessed the piston into the body.

Over time, the elasticity of the cuff is lost, the pads remain pressed against the discs, increased friction, overheating and all other delights. This is not always obvious. How can you troubleshoot?

First of all, the suspended wheel should spin freely, even immediately after pressing and releasing the brake pedal.

Brake discs must not show signs of overheating

outer and inner pads should not have a difference in thickness

brake caliper piston should be easily recessed into the housing.

If there is cause for concern, we start looking for a problem. Most often it occurs due to a damaged anther.

but even if outwardly intact, look under it

the piston surface must be perfectly flat, without any traces of rust or dirt.

VAG provides a repair kit consisting of rubber bands, there are also a bunch of analogues from third-party manufacturers

but there is no piston on sale. However, this is not a problem at all, you can safely use non-original pistons available on the free sale for cars of previous generations.

And now about the repair procedure itself:

-jump the car and unscrew the wheel, turn the steering wheel to the extreme position

-remove the retaining spring

- thoroughly clean the surface near the brake hose mount

- rinse with some kind of cleaner, blow with air

-in order not to lose the brake fluid level, we pinch the brake hose

- unscrew the hollow bolt securing the hose,

- so that the dirt does not get inside, and the liquid does not flood everything around, insert a simple bolt with a thread 10 * 1.5 into the hole

-remove the protective caps on the guides

-Unscrew the guides with a 7 mm hexagon.

-it is necessary to slightly drown the piston, for that, using a thick screwdriver, we move the body away from the disk

-remove the caliper, helping ourselves with a screwdriver (screwdrivers)

- one block can remain in the bracket, one is fixed with a spring to the caliper

—stopping support in hand. Remove the cover with a flat screwdriver

- miracles, but even with external well-being, moisture could be inside

-the piston can be removed from the body in three ways:

- without still disconnecting the caliper from the hose, remove it from the disc, and press the brake pedal until the piston falls out. And immediately pinch the hose.

- to squeeze the body in a vice, and pull the piston with large "crocodiles", simultaneously making circular movements

- but the easiest way is to remove it with air. However, do not forget to provide support for the safety of your own body parts.

- having drained the remaining brake fluid, remove the old cuff

- it is necessary to thoroughly clean the seating surface of the protective cover

-and also grooves for the cuff

-Before reassembly, it is necessary to flush again (ELSA recommends alcohol, but not inside) and blow with air.

- with clean (!) hands we put a new cuff

-Slightly lubricate it with fresh brake fluid

-a bit t. spill on the piston surface (the same ELSA provides a special paste for this)

- we put the piston in the body strictly vertically, and slightly shaking it, with the effort of our fingers, we press it

-Drowning almost to the middle, put on a protective cover

- making sure that the elastic is not jammed anywhere, press the cover onto the case. A wire ring is welded into it, a special mandrel is provided for an even fit by VAG

-but you can do without it, the main thing is uniform effort

- drown the piston completely, and then push it out with the help of air, and make sure that the boot is flat, not twisted or torn anywhere

- re-sink the piston completely, and you can start assembling. However, since we have come to the repair and maintenance of brakes, everything must be done correctly. So - we unscrew the caliper brackets

-and thoroughly clean all surfaces on which the pads move

-make sure that the thread into which the guides are screwed is not damaged

* weak point on VW of the latest generation.Often, when unscrewing the guide, dirt and rust formed on the protruding part pull out the threads behind them.

-screw the bracket into place (before reuse, clean the bolts and tighten them with a torque of 190Nm ),

put the block on and make sure that it does not get stuck anywhere

-clean the guides from dirt. If there are traces of rust, it is better to replace them altogether.

-insert the inner block into the piston with a spring, put the caliper on the bracket, bait the guides with your fingers (!)

be sure to make sure that the bolt goes along the thread, and only then tighten (30 Nm)

-we put on the caps, so as not to forget later, insert the spring

-the brake hose is attached to brake caliper hollow bolt, and sealed with two rings.

- we can safely call them disposable.

And they are removed only with the help of a tool

-but at the same time it is not possible to find them in ETKA as a separate part. You can safely put rings from a similar assembly used in domestic cars. Unless, before installing, slightly move back and forth on a fine skin

- Before assembly, blow out the fitting

-and clean the mating plane on the hose

-Unscrew the bleed fitting and release the brake hose

- usually, after such work, there is no need to pump the circuit, it is enough to wait until the liquid flows from the fitting, evenly and without bubbles

-for ecology lovers, you can hang a bottle and control the air through a transparent hose

- tighten the shooter (30Nm), get behind the wheel and reduce the pads with a few strokes of the pedal.

-wash off the remaining brake fluid and others and traces of activity

- especially pay attention to the CV joint boot, ball joint and steering tip covers

If these are not observed, we fasten the wheel, lower the jack. Open the hood and check the brake fluid level in the reservoir. Top up if necessary.

Make a test drive. If the pedal fails when pressed for the first time, and after a couple of strokes it becomes higher, repeat the procedure for removing air.

There is also a possibility that due to the different elasticity of the cuffs in the old and worn caliper there will be a difference in the speed of the brakes. Therefore, it is advisable to carry out the bulkhead on both sides at once.

Well, now you can rejoice in the serviceable brakes.
Thus, now you have learned how to execute repair of front and rear brake caliper

• Removing the front wheel brake

• Unscrewing the cylinder mounting bolt
• 1 - cylinder mounting bolts
• 2 - cylinder
• 3 - bolts tightening the cylinder with a support

• Details of the front wheel brake lada samara 2
• 1 - wheel cylinder
• 2 - fitting for bleeding the brake drive
• 3 - sealing ring
• 4 - piston
• 5 - protective cap
• 6 - retaining ring
• 7 - support
• 8 - shoe guide
• 9 - brake pads
• 10 - protective cover
• 11 - guide pin
• 12 - bolt of fastening of the guide pin
• 13 - brake hose
• 14 - the bolt of the cylinder to the caliper

Disconnect the hose from the wheel cylinder 2. Unlock and unscrew the bolts 1 securing the wheel cylinder to the guide pins, holding the guide pin with a wrench on the edges. Remove the 8 shoe guide assembly with pins. Remove the brake pads

• Pushing the piston out of the cylinder

Remove the circlip 6 and the protective cap 5 from the cylinder and piston. Carefully push the piston out of the cylinder by forcing a jet of compressed air through the fluid inlet. To avoid damaging the piston on the caliper surface when pushing out, place a wooden pad under the piston.

Unscrew the bleed nipple from the cylinder body and carefully inspect the cylinder running surface. It should be free of scoring, damage and corrosion.

• Front wheel brake assembly

Assemble the brake mechanism VAZ 2114 in the reverse order of disassembly.In this case, O-ring 3 and cap 5 are recommended to be replaced with new ones. Lubricate the cylinder mirror, piston 4 and O-ring with brake fluid, and apply graphite grease or Ditor grease to the piston surface, install the piston into the cylinder and, without removing the remaining grease, put on the protective cap 5 so that its edges enter the groove of the piston and cylinder, then install the locking ring 6. Lubricate the guide pins with UNIOL-1 grease (1.5 g for each pin). Tighten the bolts of the caliper and cylinder to the fingers to the torque specified in Appendix 1, then lock them. Before tightening the bolts, apply sealant to them so that the threaded part of the connection does not corrode. After assembling and installing the brake mechanism, restore the fluid level in the reservoir and bleed the VAZ 2114 hydraulic drive system.

Repair of the VAZ 2109 caliper may be required if the car is often faced with heavy braking from a speed of over one hundred kilometers. Brake fluid can simply boil, heating up as the pads rub against the discs. The temperature can reach 600 degrees, the worse it turns out if it has not been replaced for a long time.

For repair, you need to remove the wheel from the car. Then remove the brake hose seal from the bracket on the rack. Next, you need to loosen the tightening of the brake hose tip on the caliper. Using a screwdriver, the tendrils of the lock washers are bent and the two brake caliper mounting bolts are unscrewed.

Then, when repairing the VAZ 2109 caliper, the bolts are removed and the brake caliper assembly with the wheel cylinder is removed. It is necessary to unscrew the brake caliper from the tip, the tip of the brake hose is held with a wrench by the hexagon. It is worth remembering that brake fluid may leak. In addition, the heavily crimped copper ring should be replaced if necessary.

Next, the caliper is clamped in a vice, two bolts with an internal hexagon attaching the brake cylinder to the caliper are unscrewed. Then the wheel brake cylinder is removed from the caliper, the retaining ring is removed. Next, the boot is removed from the brake cylinder, the piston is taken out. Remove the O-ring carefully so as not to damage the brake cylinder mirror.

The brake bleed fitting is also turned out if it is necessary to replace the wheel brake cylinder. If there are signs of damage on the working surface of the piston, then the brake cylinder must be replaced. It is also desirable to replace the cuffs, which are pre-lubricated with fresh brake fluid. Then the lip of the boot is installed in the piston bore.

Further, when repairing a VAZ 2109 caliper, the brake cylinder mirror and the working surface of the piston are lubricated with fresh brake fluid. The piston is inserted into the brake cylinder, the circlip is installed. Now you need to install the caliper in the reverse order.

It is quite rare to remove or install the front brake calipers on the VAZ-2115, and replace or repair even less often. But there are incidents when the clamping bracket bolts rust so badly that they just break off when turned. You have to buy a new caliper and replace it. In order not to overpay at a service station, you can do the work yourself.

- head 19;
- crank and ratchet handle;
- extension cord;
- split brake pipe wrench.

Recall that more recently we talked about how to replace the retractor relay on a VAZ 2115 with our own hands. A solenoid relay is the main cause of a floor mounted starter motor on a car. I recommend that you familiarize yourself.

1. After the machine is jacked up and the front wheel is removed, it is necessary to sprinkle penetrating grease on the caliper mounting bolts from the back side. Then it is worth unscrewing the brake hose, as shown in the photo below.

2. Lift it up and secure it so that the brake fluid does not flow out of the reservoir. Now you can unscrew the two caliper mounting bolts.

3.When the force is not so great, it is better to use a ratchet.

4. After that, you can lift the caliper complete with pads up, since nothing else holds it.

5. If you change the entire assembly assembly, then we buy a new mechanism and install it in the reverse order.

After that, you will have to bleed the brakes, since air may form in the system, which will lead to a deterioration in braking.

The front brake calipers on the VAZ 2114-2115 have to be removed quite rarely, and they have to be replaced even less often. But there are times when the clamping bracket bolts rust so much that they simply break off when unscrewed. Many do not drill and change the caliper to a new one. In order to remove it from the car, you will need the following tool:

• Head 19
• Winch and ratchet handle
• extension
• split brake pipe wrench

So, after the car is jacked up and the front wheel is removed, it is necessary to spray penetrating grease on the caliper mounting bolts from the back side. Then it is worth unscrewing the brake hose, as shown in the photo below:

Lift it up and secure it so that the brake fluid does not flow out of the reservoir. Now you can unscrew the two caliper mounting bolts:

When the force has become not so great, it is better to use a ratchet:

After that, you can lift the caliper complete with pads up, since nothing else holds it.

If you change the entire assembly assembly, then we buy a new mechanism and install it in the reverse order. After that, you will have to bleed the brakes, since air may form in the system, which will lead to a deterioration in braking.

Repair of the VAZ 2109 caliper may be required if the car is often faced with heavy braking from a speed of over one hundred kilometers. Brake fluid can simply boil, heating up as the pads rub against the discs. The temperature can reach 600 degrees, the worse it turns out if it has not been replaced for a long time.

For repair, you need to remove the wheel from the car. Then remove the brake hose seal from the bracket on the rack. Next, you need to loosen the tightening of the brake hose tip on the caliper. Using a screwdriver, the tendrils of the lock washers are bent and the two brake caliper mounting bolts are unscrewed.

Next, the caliper is clamped in a vice, two bolts with an internal hexagon attaching the brake cylinder to the caliper are unscrewed. Then the wheel brake cylinder is removed from the caliper, the retaining ring is removed. Next, the boot is removed from the brake cylinder, the piston is taken out. Remove the O-ring carefully so as not to damage the brake cylinder mirror.

Further, when repairing a VAZ 2109 caliper, the brake cylinder mirror and the working surface of the piston are lubricated with fresh brake fluid. The piston is inserted into the brake cylinder, the circlip is installed. Now you need to install the caliper in the reverse order.

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