Replacement of the shock-absorber behind
The image of separate details of a back depreciation rack in the assembly sequence in Audi with the forward drive
The assembly provision of the top plate of a spring and cap in front-wheel Audi (a back suspension bracket)
Here separate details of a back depreciation rack in Audi A4 quattro are represented in the assembly sequence
Sleva: the cap of a nave can be wrung out if to establish a stupid chisel between camber of a cap of a nave and a nave.
On the right: the press washer (1) under an adjusting nut (2) has to move the screw-driver if the gap of the wheel bearing is correctly established. At the same time it is impossible to lean a screw-driver blade against a brake disk.
Back suspension bracket of Audi A4 quattro
Sleva: the arrow indicates the lower screw connection of a depreciation rack on cross steering draft.
On the right: here figures designated fixing bolts of a depreciation rack / a wheel niche (1, 2, 4, 5), and also the top fastening of the shock-absorber (3).
Before replacement of shock-absorbers it is necessary to establish what is established a running gear. Only after it it is possible to order the necessary shock-absorbers. It can be found out on a sticker with information on the car at the bottom of a luggage carrier or in dredging for a spare wheel.
Symbols:
- VA – production model
- VE – a sports running gear
The shock-absorber separates from the dismantled depreciation rack with the help of the spring tension device. Such tension devices are on sale in shop of the accompanying goods. It is important to know that the fixing eye of the shock-absorber has to be under a certain corner to the top fastening of a depreciation rack. The workshop Audi uses the spring tension device with an angular scale to its correct installation. Without this device it is necessary to use intuition and a goniometer.
Dismantle of back shock-absorbers
Cars with the forward drive
Along with new shock-absorbers use also new самоконтрящуюся a nut for the top fastening of the shock-absorber:
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- Dismantle a depreciation rack and clamp it in a vice for the lower fixing eye. Do not clamp it in the field of external diameter, otherwise it will be pressed through.
- Install the tension device on rounds of a spring and slightly squeeze a spring.
- In order that the tension device did not slide off, paste over the corresponding rounds of a spring with an adhesive tape.
- Wring out a protective cap, weaken above on a connecting bar of the stabilizer самоконтрящуюся a nut, at the same time wring out a bar in an opposite direction a key with an internal hexagon.
- After unscrewing of a nut remove details of the top support of a depreciation rack and put them in the sequence of dismantle.
- Remove a spring and auxiliary details from the shock-absorber.
- At assembly pay attention that: the basis of a spring and a lining are greased with talc and at assembly are corrected in the direction of a shock-absorber eye.
- Establish still compressed spring.
- The color tag on a spring is turned down to a plate of a spring.
- At the correct installation the lower end of a spring adjoins to a lining emphasis.
- Assembly of details in that order, as shown in the drawing above.
- Above the end of a spring also adjoins to the top dredging for a spring eye.
- Correct the shock-absorber and a plate of a spring above as it is shown in the drawing above.
- Tighten a fixing nut above on 25 Nanometers.
- If it is necessary, move for the end of a spring a spring lining below and a lining on an emphasis.
- Slowly weaken a spring.
- Put on from above a cap, at the same time correct its arrangement according to the drawing.
- About installation of a depreciation rack see in the previous section.
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Dismantle of back shock-absorbers
Quattro cars
Along with new shock-absorbers use also new самоконтрящуюся a nut and a new bolt for the top fastening of the shock-absorber:
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- Dismantle a depreciation rack and clamp it in a vice for the lower fixing eye. Do not clamp it in the field of external diameter, otherwise it will be pressed through.
- Install the tension device on rounds of a spring and slightly squeeze a spring.
- In order that the tension device did not slide off, paste over the corresponding rounds of a spring with an adhesive tape.
- Weaken самоконтрящуюся a nut of the top fastening of the shock-absorber, take out a bolt.
- Remove the shock-absorber, a spring and the damping ring.
- Establish still the compressed spring.
- The color tag on a spring is turned below to a plate of a spring.
- The lower end of a spring adjoins to dredging of an eye of a spring below on the shock-absorber.
- Above the end of a spring adjoins to dredging of a depreciation ring too.
- Again collect a depreciation rack (a spring still under a tension).
- In the beginning freely manually screw the top fastening of the shock-absorber on the top part of a depreciation rack (the so-called adapter).
- Correct the shock-absorber and the top part of a depreciation rack so that the imagined axes of both fixing openings of shock-absorbers were on the relation to each other at an angle 21 ° (the admission only 2 °). At the same time the lower opening is in front turned to outer side of the car (see the drawing on the right above).
- In this situation unload a spring.
- Now tighten a nut of a fixing bolt of the shock-absorber on 70 Nanometers. Then tighten it on 1/2 turns.
- About installation of a depreciation rack see in the section above.
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Replacement of the bearing of a back wheel
Cars with the forward drive
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- On each party one new forelock, one internal and one external bearing, and also a sealing ring is used.
- Lift and fix the car.
- Dismantle brake disks (head Tormoza), for this purpose dismantle a support.
- Remove a cap for lubricant of the wheel bearing.
- Straighten the safety forelock and take out it.
- Remove a stopper of a koronchaty nut and unscrew a six-sided nut.
- Remove a press washer and the external wheel bearing.
- Wring out behind in the middle of a wheel nave a sealing ring, take out the bearing and wipe old lubricant in a nave.
- Take out the rotating rings of both bearings from the middle of a nave of a wheel. For this purpose put from the different parties a brass core to the rotating ring from within and soft blows of the hammer beat out it outside. Track that the ring was not bent.
- Establish a new ring of the bearing on a wheel nave. For protection put from above an old ring of the bearing (the thick party down) in order that at careful driving in damages on the working surface of the new bearing did not appear.
- Hammer all rings of bearings against the stop.
- Now take out all old rings of bearings put for protection again.
- Fill with lubricant intermediate space between both rings of the bearing, and also a ring and bearings.
- Insert the internal bearing.
- Evenly hammer with the rubber hammer a sealing ring on inside.
- Pull a wheel nave over the end of an axis.
- Put on the external wheel bearing and a press washer.
- Manually screw a six-sided nut on the end of an axis; at the same time constantly turn a wheel in order that the bearing was not bent.
- Adjust the wheel bearing (see the following section).
- Establish a brake disk and a support (head Tormoza). Then several times press a brake pedal.
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Adjustment of the bearing of a back wheel
Cars with the drive on forward wheels
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- Lift a back part of the car and record it.
- The wheel in cars with steel rims can be not dismantled. If rims from light metals, then a wheel it is necessary to remove to improve access.
- Remove a nave cap, the forelock and a koronchaty stopper as it is described above.
- Put the six-sided clamp without effort, rotating at the same time a wheel not to clamp the bearing.
- Again weaken a nut a little.
- The gap is established correctly if the press washer behind a nut can be a little shifted by the screw-driver with strong pressing of a finger. Do not damage the screw-driver edge of a nave of a wheel.
- If now the lock forelock cannot be advanced through a koronchaty stopper, then turn a nut in the direction of screwing up a little.
- Pull a nave cap by means of the rubber hammer if it is necessary, put between them the curtailed rag.
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Wheel bearing of the quattro models
The all-wheel drive model has pressed double ball-bearings also on a back axis. They do not need to be regulated, but due to the lack of necessary press stamps they cannot be replaced by own efforts.
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