Audi A3 Sportback Service Download Page 44 | Manualshive

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Audi A3 Sportback Service Download Page 44

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Bus topology

Convenience electronics

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Summary of Contents for A3 Sportback

Page 1: ...Audi A3 Sportback Self Study Programme 332 Service Training...

Page 2: ...ace and variability thanks to its rear end which is a total of 68 millimetres longer than on its threedoor counterpart The A3 Sportback is immediately recognisable at first glance in the rear view mir...

Page 3: ...logies The Self Study Programme is not a Repair Manual All values given are intended as a guideline only and refer to the software version valid at the time of publication of the SSP For maintenance a...

Page 4: ...4 Overview Dimensions of the A3 Sportback Introduction 332_051...

Page 5: ...he crash performance of the body structure Front view of the body in white Rear view of the body in white 332_048 332_049 Body The body of the Audi A3 Sportback has a highly rigid and crash optimised...

Page 6: ...igher strength sheet metal are used in areas which are subjected to high mechanical stresses during a crash Welded tailored blanks and deep drawn sheet metal are used in other areas Body Ultra high st...

Page 7: ...7 332_052...

Page 8: ...ed in the front floorpan assembly and door areas The result is a distribution of material which provides optimum stress absorption The sills are reinforced using rolled profiles Rolled profiles have a...

Page 9: ...ot easily accessible The total length of the laser welded joints is approx 25 m Laser soldering Laser solder joining is used to achieve a better design and higher rigidity in the area of the invisible...

Page 10: ...It is made from aluminium and is available in two finishes high gloss anodised or black powder coated Body Mounting The roof rail is mounted to the roof side member using four bolts Rivet nut Roof si...

Page 11: ...be opened completely and slid back Two separate sun blinds protect against the glare of the sun and can also be used when the glass roof is open Function Opening is powered by an electric motor When...

Page 12: ...nd on compatibility Audi s safety first approach to vehicle design complements the information derived from scientific analysis of actual accidents and their impacts To this end the Audi Accident Rese...

Page 13: ...or diagnosis connection J220 Engine control unit J234 Airbag control unit J285 Control unit with display in dash panel insert J393 Convenience system central control unit J533 Data bus diagnostic inte...

Page 14: ...ion about the occurrence of a crash is utilised by other control units for opening the central locking system shutting off the fuel supply and activating the hazard warning light system etc Occupant p...

Page 15: ...lready being used in the Audi A3 3 door 332_006 Note The airbag control system uses sensors integrated in the front doors etc To avoid any impairment to the function of the side airbags no modificatio...

Page 16: ...t charge The detonator ignites the priming charge which in turn detonates the actual propellant charge through nozzle holes in the gas chamber The combustion of the propellant charge produces a pressu...

Page 17: ...17 Ignition of the first propellant charge Ignition of the second propellant charge 332_033 332_034...

Page 18: ...as bottle exceed a preset value the rupture disc will explode and the gas mixture will inflate the airbag The airbag is further inflated by the combustion of the second propellant charge The coil spri...

Page 19: ...as bottle at 600 bar now breaches the rupture disc The gas flows through the filter into the gas lance which connects the airbag to the gas generator 326_024 Lumbar support plate Functional unit activ...

Page 20: ...y the airbag control unit Every time the airbag is deployed the battery isolation igniter is activated and must be subsequently replaced When the pyrotechnic propellant charge is ignited the developin...

Page 21: ...ure sensor for seat occupied recognition G452 Seat occupied recognition control unit J706 Front passenger side belt switch E25 Seat belt force sensor for seat occupied recognition G453 Front passenger...

Page 22: ...petrol direct injection which combines the advantages of direct injection combustion with the dynamics of the exhaust turbo technology The result is an extremely responsive unit which conveys a highl...

Page 23: ...s Engine code AXX Type In line 4 cylinder petrol engine Displacement 1984 cm3 Power output 147 kW 200 bhp Torque 280 Nm at 1800 4700 rpm Bore 82 5 mm Stroke 92 8 mm Compression ratio 10 5 1 Weight app...

Page 24: ...ith respect to its operating principle and position However the following modifications were necessary separation of the gearing and imbalance masses to improve balancing oil pump with wider gear clea...

Page 25: ...increased wear unless measures are taken For this reason bow springs have been integrated into the sprocket wheel hub They decouple the input shaft of the balancer shaft module from the crankshaft Thi...

Page 26: ...oothed belt sprocket on the crankshaft The CTC toothed belt sprocket used here for the first time greatly reduces the torsional vibration of the camshaft and the tensile forces acting on the toothed b...

Page 27: ...y with a reduction in cam and roller land width valve springs rated for increased spring forces identical valve springs are used for the intake and exhaust valves In addition the intake port geometry...

Page 28: ...is present inside the intake manifold the blow by gases flow directly into the intake manifold If a boost pressure is present a non return valve in the pressure control valve housing closes and the b...

Page 29: ...N249 Coolant inlet from engine block The turbine shaft mounting is integrated in the compressor housing The air intake includes connections for crankcase and ACF ventilation A specially adapted silen...

Page 30: ...rated in the manifold to ensure a steady flow of exhaust gases onto the turbine wheel The ports of cylinders 1 and 4 and cylinders 2 and 3 are separated according to the firing order Furthermore the d...

Page 31: ...stem it is possible to regulate the turbine speed and set the maximum boost pressure 332_011 Note In the event that the control system fails the boost pressure will act directly on the pressure unit a...

Page 32: ...nd increased turbo lag To avoid this the turbocharger divert air valve N249 is opened by an electrical actuator The valve opens a bypass which allows the compressed air to flow back to the intake side...

Page 33: ...erature coolant against the direction of flow The coolant which is taken in by the auxiliary water pump flows from the radiator through the turbocharger to the engine block and back to the cooler to d...

Page 34: ...charcoal filter valve ACF system with double non return valve Throttle valve actuator Intake air temperature sensor 332_058 Operating mode HOSP Homogeneous split for rapid heating up of the catalytic...

Page 35: ...h modulation 332_078 332_073 High pressure injector Fuel pressure sender G247 Pressure limiting valve High pressure fuel circuit Low pressure fuel circuit Fuel pressure sender low pressure G410 High p...

Page 36: ...elerator pedal position sender 2 G185 Brake light switch F Brake pedal switch F63 Fuel pressure sender G247 Intake manifold flap potentiometer G336 Knock sensor 1 G61 Knock sensor 2 G66 Coolant temper...

Page 37: ...6 Motronic current supply relay J271 Engine component current supply relay J757 Terminal 15 voltage supply relay J329 Activated charcoal filter system solenoid valve I pulsed N80 Fuel pressure regulat...

Page 38: ...adapted to suit the Sportback Rear axles The rear axles for front wheel drive and quattro all wheel drive are identical in design and function to the A3 3 door The spring links wheel carriers and whee...

Page 39: ...rsion of the warning lamp activation circuit will be come into use in the A3 3 door in May 04 A yellow or red LED is activated depending on fault severity See chapter Electrical system Dash panel inse...

Page 40: ...in 4 spoke design Sport steering wheel in 3 spoke design with shift paddles standard with DSG Multifunction sport steering wheel for telephone and radio operation in 3 spoke design Ambition Sport ste...

Page 41: ...is started by pressing the tyre pressure monitor button for at least 2 seconds During the subsequent trip the signals generated by the wheel speed sender are evaluated with allowance being made for th...

Page 42: ...System faults are indicated by the continuous illumination of the TPM warning lamp and registered in the fault memory of the ESP control unit Control units with TPM capability have additional measure...

Page 43: ...will be featured on the A3 Sportback A cast aluminium wheel in size 6 5J x 16 is available as an option on models with the Attraction trim A cast aluminium wheel in size 7 5J x 17 is available as an o...

Page 44: ...44 Bus topology Convenience electronics...

Page 45: ...l unit J400 Wiper motor control unit J401 Navigation system with CD drive control unit J402 Operating electronics control unit navigation J431 Headlight range control control unit J446 Parking aid con...

Page 46: ...46 Convenience electronics New features of the convenience electronics...

Page 47: ...eels The multifunction steering wheel is encoded in the steering column electronics control unit and communicates with the control unit across the LIN bus 4 Convenience system central control unit J39...

Page 48: ...he Group standard If the yellow electromechanical steering warning lamp comes on then there is a fault in the electromechanical steering system Steering boost may be reduced as a result An audible war...

Page 49: ...mic value R12 and lining resistance R1s A lining resistance R1s 150 is registered in the fault memory The following message appears on the central display of the dash panel insert Tank system faulty P...

Page 50: ...Audi A6 into the AB segment However the display panel and the control elements are not kept physically separate from each other As before the new Navigation Plus system is designed for installation in...

Page 51: ...ystem and controls the TP Memo function which automatically records traffic information for subsequent playback The CAR and SETUP keys are reserved for controlling vehicle specific functions and as a...

Page 52: ...dia Card cards can be used The cards are locked mechanically into the drive slots By gently pressing on the inserted card the lock is released and the card can be removed Infotainment Integrated voice...

Page 53: ...selfdiagnosis capability via diagnostic tester VAS 5051 or VAS 5052 All audio channels are amplified by a separate BOSE amplifier As with the BOSE sound system in the Audi A6 and A8 this amplifier now...

Page 54: ...al mobile phone preparation II See SSP 312 Audi A3 04 Electrical System DVD navigation The NAV key opens the control menu of the DVD based navigation system A wide range of route display modes and opt...

Page 55: ...Navigation Plus system When installing please note that the coding of the Navigation Plus system operating electronics control unit navigation J402 must be adapted accordingly to ensure proper functi...

Page 56: ...6 0654321 0 25 05 04 15 28 12 15 28 12 Time of occurrence of fault 25 05 04 Date of fault occurrence 0 must always be zero 0654321 km reading on fault occurrence 86 Fault counter 1 Fault frequency cou...

Page 57: ...rresponding value automatically 02 Pulses per wheel revolution If the input value is 0 then the system in the Audi A3 06 will calibrate itself after several kilometres and input the corresponding valu...

Page 58: ...58 Notes...

Page 59: ...10 98 20 SSP 293 Infotainment Infotainment Sound system Radio module Navigation Order number 000 2811 13 20 Self Study Programmes on the Audi A3 332_084 332_085 332_086 SSP 313 Audi A3 04 Running Gear...

Page 60: ...ecifications subject to change without notice Copyright AUDI AG I VK 35 Service training audi de Fax 49 841 89 36367 AUDI AG D 85045 Ingolstadt Technical status 05 04 Printed in Germany A04 5S00 11 20...

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