Since 1994 of release
Repair and car operation
- Running gear
Protection of passengers
Full zinc covering
Drive concepts on all wheels
Dynamics of movement on dry road
Maintenance instructions of cars quattro
The mechanism of blocking of differential
Additional works on maintenance service
+ Regular servicing
+ Exhaust system
+ Cooling system
+ Fuel tank and the fuel pump
+ The air filter and channels всасывания
+ Injection system
+ Transmission and the main transfer
+ Suspension bracket of wheels and steering
+ Wheels and tyres
+ The electrotechnical equipment
+ Ignition system
+ The alarm equipment
+ Tools and devices
+ Heating and ventilation
+ Body details
Search of malfunctions
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The forward bridge
At four levers of an independent suspension bracket of a forward axis in Audi each wheel copes four aluminium cross-section levers. Two top cross-section levers are fixed on a design by means of резинометаллических bearings and connected to a wheel support spherical heads with the lowered friction. Both bottom cross-section levers of a suspension bracket (on one – bearing and leading levers) are fixed on a stretcher by means of резинометаллического the bearing, and each of them is connected to a support of a wheel a spherical head with the lowered friction. The gazonapolnennyj shock-absorber and a screw spring are connected in an amortisation rack. The amortisation rack does not incur a problem of management of wheels. The additional spring from cellular полиуретана in a combination to a coupling buffer spring in shock-absorbers provides comfortable interception of strong fluctuations of a body on a forward axis.
The back bridge in cars with a forward drive
The known back bridge with the interfaced levers consists of two rigid on a bend and the krutilno-rigid pipelike longitudinal levers connected krutilno-plastic, rigid on a bend by a V-shaped cross-section profile. The additional stabilizer is welded with the ends of longitudinal levers. Thanks to it high cross-section rigidity of the bridge and outstanding stability of a track are reached. This back bridge should be anew adjusted concerning many details. Thus the priority purpose is increase of comfortableness and stability of movement, decrease in noise and weight reduction.
The back bridge of models Quattro
Models Audi A4 quattro are supplied by dual cross-section levers of an independent suspension bracket of wheels, including elastic support for back wheels. The top cross-section levers located over wheels, provide possibility of the device of the big luggage carrier.
The directing system of a suspension bracket of a wheel is provided with two triangular cross-section levers with additional стрежневым the lever from each party. Shock-absorbers and screw springs are united for economy of a place in amortisation racks.
Brake system with ABS
The serial system of antiblocking of the fifth generation with electronic distribution of brake effort EBV provides high stability of braking in the most different traffic conditions and does unnecessary a mechanical regulator of brake effort. As electronic control ABS possesses much more sensitive reaction, than a mechanical regulator of brake effort it is used essentially больший an adjustment range. To provide stability of movement also at braking on turns, the share of brake effort on a back axis should be lowered. EBV distinguishes by means of gauges of frequency of rotation ABS, whether moves Audi A4 rectilinearly or passes turn. On turn brake pressure upon back wheels decreases. Thanks to it back wheels can give the maximum effort of lateral withdrawal.
The electronic mechanism of blocking of differential EDS
EDS it is serially established on all models А4 quattro and enters in спецкомплектацию frontdrivers models with four-cylinder engines with working volume from 1,8 l.
Electronic adjustment of proslipping of wheels ASR
In front-wheel models А4 with engines V6 with working volume 2,6 and 2,8 l in quality спецкомплектации for draught improvement are offered electronic adjustment of proslipping of wheels ASR which possesses also all functions EDS. If EDS includes purposeful frictional coupling for draught improvement electronic adjustment of proslipping of wheels ASR if necessary provides additional intervention in engine management. The sense of electronic adjustment of proslipping of wheels consists in avoiding пробуксовывания forward wheels irrespective of, how many gas the driver gives.