Audi A4

since 1994 of release

Repair and car operation



A4 Audi
+ Running gear
+ Regular servicing
+ Engines
+ Turbo-supercharging
+ exhaust System
+ cooling System
+ Fuel tank and fuel pump
+ Air filter and absorption channels
+ injection System
+ Coupling
- Transmission and main transfer
   Mechanical transmission
   Noise in a transmission
   Automatic transmission
   Electronic control by a transmission
   Main transfer
   Power shafts
   Check of cuffs of power shafts
   The help at malfunctions
+ Suspension bracket of wheels and steering
+ Brakes
+ Wheels and tires
+ Electrotechnical equipment
+ ignition System
+ Lighting
+ Alarm equipment
+ Tools and devices
+ Heating and ventilation
+ body Details
+ Salon
Search of malfunctions
Technical characteristics


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Noise in a transmission

Eventually the noise developing in a transmission can draw attention. In this case you should check in the beginning oil level in a transmission.

  • If on any transfer there is a howling sound and its tone changes at increase or gas reduction, that, probably, a pair teeth gear wheel of this transfer is worn-out.
  • If rustles arise on all transfers, the reason is covered in the main transfer or bearings of shaft of a transmission.
  • Rough milling noise which are audible only at a warm transmission, indicate beating synchronizing rings. When oil is diluted, it is wrung out by a synchronizing ring always in the same place.
  • Noise at work of torsen-differential which arise in a start of motion in quattro at strongly turned wheel, are normal and caused by a design.