Opel Frontera

Since 1992 of release

Repair and car operation

Opel of Frontera
+ Cars of mark Opel Frontera
+ Current leaving and service
+ The engine
+ Cooling and heating systems
+ The power supply system and release
+ Engine electric equipment
+ Coupling
+ Manual box of a gear change
+ Kardannye shaft, the main transfer
- Brake system
   Brake mechanisms of forward wheels
   The brake mechanism of back wheels
   Disk brakes of back wheels
   The main brake cylinder
   Removal of air from brake system
   The vacuum amplifier of a brake
   Lay brake
   Pressure regulator
   Brake hoses of forward and back brake mechanisms
   Antiblocking system (ABS)
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Controls and operation
+ Electric equipment schemes


Brake mechanisms of forward wheels



As it was already mentioned, new generation Frontera is equipped by various disk brakes. However it is not reflected in technology of removal and installation brake колодок.
Brake колодки should be replaced in the complete set on both wheels. It is impossible to replace колодки only on the one hand, if, for example, колодки with the second in a good condition. Non-uniform braking can be result of such replacement.
The material brake колодок can contain asbestos which represents harm for health of the person. Now manufacturers replace асбестсодержащие materials with others, less harmful. However the owner can not know, from what material are executed колодки its car. Therefore do not blow off removed air a brake dust. Do not inhale a brake dust. Do not apply to clearing of details of brake system the liquids based on gasoline - they can lead to swelling of rubber details of system. It is necessary to apply spirit or special liquids to this purpose.

Brake колодки act in film as follows:

1. Check up liquid level in a tank of the main brake cylinder. If above established, a liquid it is necessary to suck away level for an exception of possibility of its transfusion.
2. Turn out a bolt from the bottom party of the cylinder, as shown, and take out it from the inside.
3. Reject upwards the cylinder case.
4. Remove both brake колодки on each side a brake disk. Washers and latches from below and from above are thus released.
5. Adhere a wire a support in the lifted position.
6. Blow compressed air or wipe a rag directing planes and the interfaced surfaces in the case. Thus it is impossible to apply mineral solvents or the tool with sharp edges.
7. Check up reliability of a protective cap and a lock ring in a support. The damaged caps replace.

At acquisition of the repair complete set brake колодок it is necessary to find out, whether they correspond to the amplifier of a brake regarding a material brake колодок. Therefore at the order колодок it is necessary to specify number of the chassis and year of release of the car.


1. At installation brake колодок press the piston of the wheel cylinder into an aperture, as shown. Thus it is necessary to watch level of a brake liquid in a tank.
2. Establish washers and latches on скобе.
3. Put on brake колодки on the right and at the left.
4. The deterioration index on the bottom party колодок should be turned inside.
5. Lower скобу, as shown.
6. Insert from below directing finger and fix.

7. Depending on a year of release here there are constructive differences:

On cars to the middle of 1995 of release the moment of an inhaling of directing fingers makes 32 Nanometers.
On cars of later release the inhaling moment makes 74 Nanometers.
8. Fill in a liquid in a tank of the main brake cylinder to the established level.
9. Press some times a brake pedal that колодки were established concerning a brake disk.

For extra earnings brake колодок some time is required. It is recommended not to press sharply during this time a pedal at braking.  



Before removal and support repair it is necessary to be convinced available the repair complete set.
1. Lift and establish on supports a forward part of the car.
2. Turn away a nut and remove wheels.
3. Remove brake колодки as it is described in the previous subsection.
4. To exclude вытекание liquids from system, it is necessary to close a tank. Is better for this purpose turn away a stopper of a tank and close an aperture polyethylene. After that the stopper is wrapped again.
5. On the back party of a support turn away a hollow bolt and remove a brake hose.
6. At the left and on the right there are sealing washers which are necessary for removing. A liquid quantity thus follows. Stop up the hose end (for example, wrap up a sticky tape).
7. Turn away two bolts and remove a support.
8. One of bolts is shown on an illustration. From the top party there is a second bolt.
9. If it is necessary, turn away two bolts of fastening of a rotary fist. Bolts are shown on an illustration.

 Details скобы a forward brake of the car to the middle of 1995 of release
1 - the sliding plug
2 - a protective cover
3 - a protective cover
4 - the union for air removal
5 - a lock ring
6 - a dustproof ring
7 - the piston
8 - a cuff
9 - the cylinder

Details скобы a forward brake of the car from the middle of 1995 of release
1 - a protective cover
2 - the union for air removal
3 - a lock ring
4 - a dustproof ring
5 - the piston
6 - a cuff
7 - a support


If at replacement brake колодок liquid traces in area пыльников the wheel cylinder are found out, it is possible to replace brake cuffs.

1. Carefully clear a support and clamp it in a vice.
2. Cautiously remove a screw-driver protective caps from the end of the piston and from a support. Watch to damaging any details.
3. Insert into a support aperture wooden брусок (in front of the piston) and bring compressed air to a place of joining of a hose.
4. Squeeze out the piston from the cylinder. For this purpose it is possible to use also the pump with a foot drive.
5. Take out not sharp subject (wooden or plastic) a brake cuff from the cylinder, as shown.
6. Details of a support of a forward wheel of the car from the middle of 1995 of year of release are shown on the Detail illustration скобы a forward brake of the car from the middle of 1995 of release. At the car of earlier release in rubber covers plugs are inserted. At new models the rubber covers serving only in quality пыльников are established.
7. All details carefully wash out in a brake liquid or spirit.
8. If the internal surface of the cylinder has traces of strong deterioration, is better replace a support in the complete set.
9. The repair complete set should be used completely, including all details.
10. At first into a flute insert a cuff and carefully press.
11. A cuff grease with greasing for brake system or a brake liquid.
12. Insert into a piston flute пыльник.
13. Moisten the piston in a brake liquid and insert it into the cylinder.
14. After the piston partially will enter into an aperture, establish пыльник in a support. Watch to damaging пыльник.
15. Advance the piston more deeply in the cylinder so that it has occupied correct position. Watch that correctly there was a protective cap.
16. If it is necessary, replace protective covers with plugs or without them depending on a year of release. Protective covers are established with brake greasing.

Repair of the cylinder of a support

1. After dismantling of the cylinder of a cuff always replace.
2. It is not necessary to establish the cylinders having wear tracks, teases and corrosion of a working surface.
3. Apply only a brake liquid of the established mark. Do not apply a liquid, long time not used.
4. Pistons and cuffs are greased either a pure brake liquid or brake greasing.

At supports of a considered design the cylinder case moves on two sliding plugs. In the case there is a piston. In spite of the fact that the design of both considered supports has difference, removal, repair and their installation are carried out equally. Available differences are visible from the resulted illustrations.

Support installation

In the presence of outer defects of sealing rings of a brake hose, it is necessary to replace them.

1. If directing a support has been removed, fix it on a rotary fist and tighten both shown bolts of fastening by the moment of 212 Nanometers.
2. Fix a hose on a support, having tracked that it has occupied correct position. Thus one directing finger should be inserted into a support.
3. Tighten a hollow bolt the moment of 35 Nanometers.
4. Unions of removal of air tighten the moment of 8 Nanometers and are closed by caps.
5. Establish brake колодки as it is described above.
6. Remove polyethylene from a tank stopper.
7. Check up liquid level. If necessary add and close a tank a stopper.
8. Other works are carried out in sequence, return dismantling.
9. Remove air from system as it is described more low.
10. In summary check up system on tightness.
11. After end of all works check up action of brake system during car movement.


Before removal of a brake disk it is necessary for checking up on palpation, since. The disk can be deformed. The brake disk fastens a bolt with head Torx. However the bolt completely does not press a disk to a wheel nave. For maintenance full прилегания one of bolts of fastening of a wheel is rolled with the remote plug in a nave opposite to a bolt of fastening of a brake disk and clamps a nave. Thus, uniform fastening on the right and at the left is reached.

1. Establish the indicator with the holder on скобу brakes and rest a measuring tip approximately against the middle of a frictional surface of a disk, as shown.
2. Slowly turn a brake disk and measure palpation. It should not exceed 0.13 mm. Palpation brake disk not necessarily completely is a consequence only of defect of the disk since partially to it palpation owing to backlashes in the wheel bearing is added.
3. At rotation of a brake disk it is necessary to check its brake surface on presence of cracks, задиров, etc. In the presence of the specified defects, as a rule, it is necessary to replace a brake disk.

Brake disks can be ground for working capacity restoration. The minimum admissible thickness of a disk is resulted in Specifications. Thus it is necessary to watch preservation of planeness of a disk.

The brake disk acts in film as follows:

1. If the wheel is already removed, as it was accepted above, turn out a bolt of fastening of the wheel, used at palpation check.
2. Remove a brake disk as it has been described above.
3. Adhere a support a wire to the chassis.
4. Turn out both shown a bolt and separate directing from a brake disk.
5. Turn out a special key a fastening bolt in a face surface of a brake disk. The bolt has head Torx.
6. Remove a brake disk from a wheel nave. If necessary for this purpose it is possible to take advantage of a rubber hammer.
7. Before installation of a brake disk smooth out small наждачной a skin interfaced surfaces of a disk and a wheel nave. If the new brake disk is established, it is necessary for clearing of greasing.
8. Establish a brake disk and обстучите its rubber hammer.
9. Screw and tighten a fastening bolt.
10. Check up a brake disk on palpation as it is described above. Unexpectedly appeared palpation can be a consequence of hit of extraneous particles between planes of interface of a disk and a nave. Then again disassemble connection, clear and collect.
11. Establish directing колодок and tighten bolts of its fastening by the moment of 212 Nanometers.
12. Establish brake колодки as it is described above.

13. Lower the car and tighten bolts of fastening of wheels the moment of 110 Nanometers.

The prevention
Wheel disks from easy alloys fasten the moment of 120 Nanometers.


The thickness of brake disks can be measured without their removal. It becomes a calliper. Keep in mind distinction in executions.


In case of deformation of a casing it can be replaced. For this purpose it is necessary to remove a support, a brake disk and a wheel nave. After that it is possible to turn away three bolts of fastening and to remove a casing. Bolts of fastening of a new casing tighten the moment of 13 Nanometers.