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Draining and filling ATF > < Exploded view - ATF drain, filler and inspection plugs

A4 Mk3

Checking and correcting ATF level
Checking and correcting ATF level
Special tools and workshop equipment required
t  Vehicle diagnostic tester
   
t  Used oil collection and extraction unit -V.A.G 1782-
  W00-10211
t  ATF filling unit -V.A.G 1924-
t  Safety goggles
Test conditions
l  Gearbox must not be in emergency running (backup) mode.
l  Vehicle must be absolutely horizontal (drive it onto a four pillar lifting platform or over an inspection pit).
l  Selector lever at position „P“.
l  Parking brake button must be pulled up to apply the electromechanical parking brake.
l  Extractor hose(s) of an exhaust gas extractor (switched on) must be connected.
l  Air conditioner and heating system switched off.
l  Vehicle diagnostic tester is connected.
l  The ATF temperature must not be higher than 30°C at the beginning of the test. If the temperature is higher, allow the gearbox to cool down before proceeding.
  Note
t  The ATF temperature is taken from the reading on the vehicle diagnostic tester.
t  The ATF level will vary according to the ATF temperature.
t  If the ATF level is checked when the ATF temperature is too low, this will result in overfilling.
t  If the ATF level is checked when the ATF temperature is too high, this will result in underfilling.
t  Both overfilling and underfilling will impair the function of the gearbox.
Procedure
l  Tightening torques → Chapter „Exploded view - ATF drain, filler and inspection plugs“
–  Using the diagnostic tester in „Guided Fault Finding“ mode, go to Function/Component Selection and select the following menu items:
t  Drive system
t  0B5 gearbox
t  01 - Self-diagnosis-compatible systems
t  02 - Gearbox electronics
t  02 - Gearbox electronics, Functions
t  02 - Measured values
–  Select the value for Gearbox oil temperature (ATF) from the menu.
–  Read off ATF temperature.
Checking and correcting ATF level
  Note
t  The ATF level is checked at the ATF inspection plug.
t  The ATF level is correct if a small amount of fluid comes out at the ATF inspection plug when ATF temperature is between 30 °C and 50 °C (the fluid level rises due to expansion as it warms up).
  Caution
Risk of damage to gearbox
t  Use only the ATF supplied as a replacement part for dual clutch gearbox 0B5.
t  Select correct type → Electronic parts catalogue.
t  Other types of ATF or other oils cause malfunctions and/or failure of the gearbox.
t  The ATF filling unit must be clean and the ATF must not be mixed with other types of oil!
  W00-0439
–  Fill reservoir of ATF filling unit -V.A.G 1924- with ATF for dual clutch gearbox 0B5. For ATF specification refer to → Electronic parts catalogue.
–  Secure reservoir for ATF filling unit -V.A.G 1924- as high as possible on vehicle.
  Caution
Risk of damage to gearbox
t  The engine must not be started if only a little or no ATF remains in gearbox after repair work or after excessive ATF leakage.
t  In this case the gearbox must be filled with ATF before proceeding further → Chapter.
  A37-0045
–  Remove rear noise insulation -2- → General body repairs, exterior; Rep. gr.66.
–  Start engine with selector lever in position „P“.
–  With brake pedal still depressed, select all gear positions („P“, „R“, „N“, „D“, „S“) one after the other at idling speed, maintaining each position for at least 2 seconds.
–  Shift selector lever into position „N“.
–  Shift selector lever into position „P“.
–  Allow engine to continue running at idling speed.
  A10-11071
–  Place used oil collection and extraction unit -V.A.G 1782- below gearbox.
  WARNING
Risk of eye injury.
Wear safety goggles.
–  When an ATF temperature of 30 °C is reached, unscrew the ATF inspection plug -arrow- and drain off any surplus ATF.
l  If ATF emerges from the ATF inspection plug before the ATF has reached 40 °C the ATF level is OK.
  Note
The ATF inspection plug must be screwed in again before the ATF reaches a temperature of 50 °C.
–  Tighten ATF inspection plug. The ATF level check is now completed.
–  Install noise insulation → General body repairs, exterior; Rep. gr.66.
l  If no ATF emerges from ATF inspection hole when ATF has reached 40 °C:
Filling up ATF
  Note
The ATF inspection plug must be screwed in again at the latest when temperature reaches 50 °C. If necessary, switch off engine, allow gearbox to cool down and repeat the test.
–  Insert filler nozzle of ATF filling unit -V.A.G 1924- into ATF inspection hole.
–  Fill with ATF using ATF filling unit -V.A.G 1924- until ATF comes out of inspection hole.
  Note
The ATF level must not be too low or too high, otherwise this would impair the function of the gearbox.
–  Tighten ATF inspection plug. The ATF level check is now completed.
–  Install noise insulation → General body repairs, exterior; Rep. gr.66.
  A34-10428

Draining and filling ATF > < Exploded view - ATF drain, filler and inspection plugs