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Audi A3since 1997 of releaseRepair and car operation |
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Audi A3 - Maintenance instruction Audi A3/S3 brand cars - the summary Identification numbers of the car Acquisition of spare parts Technology of service, tool and workplace equipment Poddomkrachivaniye and towage Engine start from the auxiliary power supply Checks of readiness of the car to operation Automobile himikaliya Diagnostics of malfunctions of knots and car systems Governing bodies and receptions of safe operation Arrangement of governing bodies and devices Keys, body locks with uniform management and the security alarm system Electric window regulators and rear-view mirrors Safety systems. Transportation of children Seats Luggage carrier Adjustable steering column Hand brake Automatic transmission The device of the acoustic help at a parking Lock of ignition and engine start Control and measuring devices. Precautionary and diagnostic systems Traveling computer Switches and switches Tempostat Screen wipers and stekloomyvatel Ventilation, heater and conditioner of air of salon Elevating and movable panel крыши* Illumination of salon and luggage carrier Salon equipment Luggage carrier on a roof Running in Features of driving of the car and auxiliary systems (ABS, EDS, ASR, ESP) Trailer operation Fuelling and emergency unlocking of a cover of the refueling hatch Cowl Readjustment of headlights First-aid kit Sign of an emergency stop Set of the tool and jack Spare wheel + Current leaving and service + Engine + Systems of cooling, heating + the Power supply system and production of the fulfilled gases + engine Electric equipment + Manual box of gear shifting + Automatic transmission and models with a full drive + Coupling and power shafts + Brake system + Suspension bracket and steering + Body + Onboard electric equipment + Elektroskhema 
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Checks of readiness of the car to operation
In the Section everything which are subject to check are listed, knots and systems and are offered ways of independent check of their condition and functioning. On the basis of the analysis of results of such checks it is possible to estimate readiness of the car for operation and checkup passing. Naturally, independently carried out checks cannot be compared on accuracy of measurements with professional, in view of lack of the corresponding qualification of the operator and inaccessibility of the special diagnostic equipment. If during carrying out independent checks need of performance of repair or replacement any of components is revealed, address to appropriate sections of the corresponding Heads of the Management for the purpose of obtaining fuller information. In most cases performance of the forthcoming checks demands participation of the assistant in them. The checks made from a driver's place Parking (manual) brake Check of functioning of the parking brake is made by complete raising of the lever of its management. Thus it is necessary to make sure that the size of a course of the lever (number of clicks of a ratchet), demanded for emergence of feeling of the full resistance caused by raising of the brake mechanism, is not excessive. If this requirement is not carried out, it is necessary to check serviceability of brake mechanisms of back wheels of the car and/or correctness of adjustment of cables of a drive of the parking brake. Having completely cocked the parking brake, shake the lever of its management here and there (knock on it from sides) – thus the brake should not be released, – wear of a ratchet or a lever doggie otherwise takes place. Release the parking brake and shake the lever here and there for identification of signs of wear of the axial bearing. Check reliability of fastening of the lever and make sure of lack of traces of corrosion of a bearing element of a body in radius of 30 cm round a lever support. If the condition of fixture of the lever does not give in to check from car salon, estimate it later during the checks made under the car. Brakes Make sure that the brake pedal during the squeezing and an otpuskaniye does not publish any sounds, does not show obvious signs of excessive wear of axial plugs, also check a condition of an overlay of a pedal. Make sure of lack of signs of leakages of brake liquid on a pedal, a floor or a rug surface round a pedal, speaking about violation of tightness of sealing cuffs of the main brake cylinder. Squeeze out a pedal at first slowly, and then quickly, achieving possibility of keeping of steady pressure. Create pressure and make sure that the pedal does not start then to fail slowly to a floor that again would point to problems with the main brake cylinder. Release a pedal, wait some seconds, then again squeeze out it till emergence of firm resistance. Make sure that resistance starts to arise already on the top site of a course of a pedal. If for resistance emergence the pedal is required to be drowned almost to a floor, it indicates violation of adjustment of brake mechanisms. If firm resistance to squeezing of a pedal does not arise at all, i.e. softness of a course of a pedal takes place, it speaks about hit in hydraulic system of air and need of complete pumping of system. Check serviceability of functioning of the vacuum amplifier of brakes, having squeezed out several times a brake pedal for depression dumping. Then, holding a pedal squeezed out, start the engine. At the moment of engine start resistance to squeezing of a pedal should change to (decrease). If it not so, exists probability of "leakages" of vacuum hoses of the block of the amplifier of brakes or actually its malfunction. Steering wheel and column Check a steering wheel on existence of cracks or weakening of landing of a nave, spokes or a rim. Shake a wheel here and there, then up-down in relation to a column. Make sure of absence люфта wheels on a column which is the certificate of weakening of a nut of fastening of a wheel or wear шлицов in bulk. Continue to shake a wheel as it is described above, but add still easy rotation it to the right-to the left. Make sure of absence excessive люфта a wheel speaking about excessive wear of the top basic bearing of a shaft, the kardanny hinge (ов) or the flexible coupling. Windscreen and rear-view mirrors On a windscreen there should not be cracks and the other damages, capable is appreciable to limit sector of the review of the driver, or screen wipers stirring to work. Existence of the small it is erose, the stones left at blows it is admissible. Any stickers and pendant souvenirs also should not limit the review of the driver. Rear-view mirrors should be reliably fixed, are not damaged and should give in to adjustment. The door mirror from the passenger party of the car is not subject to an ekzamenovka under condition of serviceability and the existence of possibility of using by a rear-view mirror fixed from the interior of a windscreen. Seats and seat belts ATTENTION Carefully check structure of a material of seat belts on existence of cuts, signs of strong wiping or material aging. If the belts of inertial type equipped with returnable devices are established, at survey completely extend them from a drum cover. Clasp and unbutton each of belts, checking serviceability of functioning of mechanisms of locks (both on a zashchelkivaniye, and on opening) and their reliability. If belts of inertial type are established check serviceability of functioning of returnable devices. Check reliability of fastening of belts to elements of a body and a condition of their basic knots access to which is possible without removal of panels of an upholstery. Existence of signs of strong corrosion or deformation of bearing elements of a body in radius of a support of a belt also is inadmissible. Fastenings of seat belts some of knots are inaccessible and at all are not subject to external survey from car salon, in this case check of their condition should be made late at bottom survey. If any of parts of the mechanism of a belt are fixed directly on a forward seat, support of a seat should be reliably screwed on a floor, and their condition is subjected to the same check, as described above for support of belts. Forward seats also should be reliably fixed and should not allow spontaneous change of the situation. Backs should be fixed reliably in vertical situation. Doors Forward doors should open and be closed from within the car and it is reliable to be fixed in a closed position. Electric equipment Include ignition and involve a horn. The horn should publish the pure sound which is well heard by other participants of traffic. Application of gongs, sirens or 2-tone horns established as additional accessories independently is inadmissible. Check functioning of washers and windscreen cleaners. Washers should give a stream of liquid of an adequate pressure and an expense, and their nozzles are adjusted so that streams got to the upper edge of a windscreen. Involve at the same time with washers screen wipers and make sure that brushes qualitatively wipe a windscreen in all range of the course. On glass should not remain потеков and the strips of the smeared road film limiting the review of the driver as in rectilinear, and peripheral sectors of a field of vision. Otherwise replace brushes. Squeeze out a pedal of a foot brake at the included ignition and ask the assistant to check functioning of stoplights. When squeezing pedal stoplights should light up, and at an otpuskaniye – to die away. If one of stoplights does not burn only, a cause of failure most likely is peregorany lamps or bad electric contact on the boss of a lamp (or near it). If refusal of both stoplights takes place, it is necessary to check their safety lock and the switch. It is not necessary to exclude completely also probability of a simultaneous peregoraniye of both lamps. Refusal of lamps of stoplights of switching off at an otpuskaniye of a pedal of a brake is the testimony of malfunction of the switch. The checks made on the car which was on the earth Registration plates and identification numbers of the car Forward and back registration plates should be in a satisfactory condition, to be reliably attached and easy to be read. The identification number of the car (VIN) located on шильде under a cowl should be legible. Electric equipment Include marker lights and make sure that lit up both forward, and back dimensions, and also lamps of illumination of registration plate. Lenses and reflectors should be pure, intact and are reliably fixed. Integrity of lenses has special value in back lamps where this world of damaged fire can be confused by other participants of traffic with a signal of inclusion of a backing. Pollution of lenses causes appreciable decrease in intensity of light let out by a lamp. Include head headlights and make sure that blocks both near, and a driving beam function normally and with intensity identical to both headlights. Decrease in intensity of a luminescence of any of head headlights is usually connected with violation of quality of electric contacts or strong corrosion of an internal reflector. Check lenses of head headlights on existence of cracks and the stones left as a result of blows it is erose. Such defects are inadmissible, however usually qualification of degree of their gravity is a subjective factor. Remember that all lighting devices should work smoothly at the first switching of switches. Postukivaniye on the block of the lighting device for the purpose of its inclusion is inadmissible action. Head headlights should not only to be adjusted so that not to stick together other participants of traffic in a mode of a passing beam, but also to provide adequate illumination of a road cloth in front of the car. Check of adjustment of the direction of head headlights make by means of the special optical equipment therefore, in a case absence of confidence of its correctness it is necessary to address beforehand to experts for carrying out check and correction of provision of headlights. Having included ignition, check functioning of indexes of turns. Make sure that both forward, and back from them radiate yellow light and about one-two times a second blink with frequency. Besides, the obligatory requirement is serviceability of indicators of inclusion of indexes of turns on an instrument guard. Inclusion of marker lights and stoplights should not influence functioning of indexes of turns – if it not so, the reason is usually covered in bad quality of grounding in blocks of the back combined lamps. Similarly make sure of serviceability of functioning of the alarm system which should act both at included, and at the switched-off ignition. Check a condition of lenses. Check functioning of fog lights (ы). Obligatory check usually concerns only established outside of the fog light entering into a standard complete set and located from one of the parties of the car. The headlight should be reliably fixed and should make a bright, ostronapravlenny ray of light of red color. The control lamp on an instrument guard (or in the switch) also should function. Brakes From an impellent compartment check brake tubes on existence of signs of leaks, traces of corrosion, unreliability of fastening, protertost and other damages. Check the main brake cylinder and the block of the vacuum amplifier of brakes on existence of signs of leaks, reliability of fastening and signs of excessive corrosion as support of components, and elements of a body surrounding them. The tank of the main brake cylinder should be reliably fixed; fir-trees it is made of a translucent material, liquid level should be in it between the top and bottom marks in walls. Turn a steering wheel so that the flexible hose of the right forward brake mechanism could be examined. Carefully check a hose on existence of cracks and signs of aging of rubber. Defects most easier come to light when bending hose half-and-half and existence them is almost inevitable on sites where the hose is connected to unions. Turn a steering wheel against the stop to the left, then – to the right and make sure that the hose does not adjoin to a wheel disk, the tire or any of moving components of a suspension bracket or a steering. Having asked the assistant to squeeze out strongly a brake pedal, check a hose on existence of swellings and signs of leakages of liquid under pressure. Repeat checks for a hose of the left brake mechanism. In case of detection of defects make necessary replacements. Check tubes and hoses of brake lines on existence of signs of damages and material aging. Steering mechanism and suspension bracket Ask the assistant slightly повращать a steering wheel to the right-to the left in a range till the moments of the beginning of transfer of rotation to operated wheels. Try to estimate thus size of a free wheeling of a steering wheel till the beginning of operation of the steering mechanism. The size of it люфта gives information on degree of wear of hinges of a steering column, wear and reliability of fastening of the coupling of connection of a column with the steering mechanism or unreliability of fastening, wear or violation of adjustment of actually steering mechanism. Generally the free wheeling of a steering wheel should not exceed 1.3 see. Ask the assistant strongly повращать a steering wheel in both directions in a range prior to the beginning of turn of operated wheels. Thus watch closely behavior of hinges, drafts and other elements of a steering drive and knots of their fastening. The components showing signs of wear, damage, deformation or unreliability of fastening should be repaired or replaced. If the car is equipped with system of hydrostrengthening of a wheel, check also reliability of fastening of the pump of system and a condition and correctness of a tension of its driving belt. The system should function and not show regularly signs of leakages of hydraulic liquid or damage of hoses. Additional checks can be made later when the car will be lifted over the earth and access under it considerably will become simpler. Make sure of flatness of landing of the car and correctness of height of a road gleam. Make sure that there is a sufficient gap between components of a suspension bracket and buffers of a course of the compression, a guaranteeing full speed of a suspension bracket. Shock-absorbers Press serially each of car corners, sharply then releasing it. If the shock-absorber as it should be, a corner has to rise, and then return to normal situation. If the car corner after an otpuskaniye continues to be shaken up-down, the shock-absorber lost the dempfiruyushchy properties. System of production of the fulfilled gases Start the engine and, having asked the assistant to press to a cut of an exhaust pipe a rags lump, check all system on existence of signs of the leaks which are showing in the form of rhythmically pulsing streams of a smoke or the hissing sound, proceeding directly from a leak source. Check overall performance of the exhaust silencer, having made sure that level of the sound published at operation of the engine corresponds expected for the car of this type. In case the system generally is in a satisfactory condition, insignificant local leaks can be eliminated by means of a patent special remnabor. The checks made on the car, lifted over the earth, at freely rotating wheels To Poddomkratta the car, having reliably fixed it on the props got under points bearing loading of a frame of the car. Establish props so that they did not make contact with suspension bracket components (including at a povorachivaniye of forward wheels). Make sure that all wheels do not concern the earth, and operated are capable to turn from an emphasis against the stop. Steering mechanism Check a condition of rubber protective covers of a steering rack. Make sure that on them there are no cuts, signs of leaks and unreliability of fastening of bandages. If management is equipped with hydrostrengthening system, check its rubber hydraulic hoses, tubes and knots of their joining on existence of signs of aging of a material, leaks, protertost and other damages. Attentively see all components of a steering on existence of signs of jamming or too hard course, loss шплинтов and other lock adaptations, and also traces of excessive corrosion of elements of a body in radius of 30 cm round knots of fastening of any of components. Ask the assistant to turn a steering wheel against the stop at first on the left, then to the right. Make sure that thus steering components (columns, the mechanism and a drive) move smoothly and freely and that any of them (including disks and tires of wheels) does not make contact with hoses or tubes of brake system or any elements of a body of the car. Forward and back suspension brackets and bearings of wheels Since right forward, serially inspect a condition of bearings of wheels, spherical support of a suspension bracket, rotary knots and fixture of components of a suspension bracket. For this purpose undertake a wheel in points on 3 both at 9 o'clock and strongly pull it. Presence of any люфта in the transferred knots is inadmissible. Check cases of rubber and metal plugs of components of a suspension bracket on existence of signs of aging or material damage, and components on existence of bends, deformations and signs of excessive corrosion. Check presence of all шплинтов, lock washers or other kontryashchy equipment of fixture of components of a suspension bracket. Make sure of lack of traces of strong corrosion of elements of a body in radius of 30 cm round points of fastening of components. Existence of any excessive люфта can be established by an introduction way between a support of a component and its body of mount or a big screw-driver and their use as the lever. Whether thus it is possible to establish is the weak point reason wear of the axial plug, a fixing bolt or actually a time (often there are developed to an oval form boltovy openings). Now undertake a wheel in points on 12 and at 6 o'clock and repeat the check described above. Povrashchayte a wheel, whether checking there are no zakusyvaniye points in its bearing. Repeat check for the second forward wheel, and then for both back. Springs and shock-absorbers Check assemblies of racks on existence of signs of leakages of liquid, corrosion, deep cavities of rods of pistons or damages of casings. Besides, make sure of reliability of fixture of racks. Make sure that end faces of screw springs correctly are planted in the saddles, and the prutok of a body of a spring is not damaged by corrosion, not broken off and has no cracks or other defects. Check reliability of fastening of basic knots, existence of signs of excessive wear, corrosion, cracks, deformations, and other damages of components and their plugs. Check shock-absorbers on existence of signs of serious leaks (the insignificant socheniye of liquid is the normal phenomenon for shock-absorbers some of types). Check fixture and plugs of basic knots on existence of wear and damage of cases of blocks. Power shafts
Continuing to rotate a wheel, make sure that the power shaft is not bent and in any other manner is not damaged. |
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