Audi Workshop Service and Repair Manuals

Checking and correcting ATF level

Special tools and workshop equipment required

t	Vehicle diagnostic, testing and information system -VAS 5051 A-

t	Drip tray -V.A.G 1306-

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 level (horizontal). l  Selector lever in position “P”, engine idling. l  Air conditioner and heating system switched off. l  Vehicle diagnostic, testing and information system -VAS 5051 A- connected up; vehicle self-diagnosis and vehicle system “02 - Gearbox electronics” selected. l  The ATF temperature at the beginning of the test must not be higher than 30°C. If necessary, first allow the gearbox to cool down.   Note t  The ATF temperature is taken from the reading on the vehicle diagnostic, testing and information system -VAS 5051 A-. 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 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. t  Use only the correct type of ATF (available as a replacement part) for the planetary gearing in automatic gearbox 09L. Other oils cause faults and/or failure of the gearbox; for ATF specification refer to → Chapter.

ATF temperature reading Display on -VAS 5051 A-: –  From list -1-, select diagnostic function “08 - Read measured value block”.

Display on -VAS 5051 A-: 1 -  Enter display group –  Use keypad -2- to enter “4” for “Display group number 4” and confirm by touching Q key.

Display on -VAS 5051 A-: –  Reading for ATF temperature is shown in display zone -1-. 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 35°C and 45°C, or 50°C in hot climates (the fluid level rises due to expansion as it warms up). –  Drive vehicle onto a four-column lifting platform or over an inspection pit in order for it to be absolutely horizontal. –  Fill container of ATF charging device -V.A.G 1924- with ATF for automatic gearbox 09L; ATF specification → Chapter.   Caution The ATF filling unit must be clean and the ATF must not be mixed with other types of ATF!

–  Secure reservoir for ATF filling unit -V.A.G 1924- as high as possible on vehicle. –  Start engine and let it idle. –  Place drip tray -V.A.G 1306- under the gearbox.   WARNING Wear safety goggles.

–  When an ATF temperature of 35 °C is reached, unscrew the ATF inspection plug -arrow B- and drain off any surplus ATF.

–  Renew oil seal -arrow- for ATF inspection plug.

If ATF comes out of the inspection hole before the ATF has reached 40°C the ATF level -arrow- is OK.   Note The ATF inspection plug must be screwed in again at the latest when ATF reaches a temperature of 45°C (or 50°C in hot climates). If no ATF emerges from ATF inspection hole when ATF has reached 45°C, top up with ATF → . –  Fit oil new seal on ATF inspection plug and tighten to 80 Nm. The ATF check is now completed. –  Exit from function “08 - Read measured value block” by touching ← key. –  Press “06 - End output”. –  Switch off ignition and unplug diagnostic connector. Filling up ATF If no ATF emerges from ATF inspection hole when ATF has reached 40°C, top up with ATF:   Note The ATF inspection plug must be screwed in again at the latest when ATF temperature reaches 45°C (or 50°C in hot climates). If necessary, switch off engine, allow gearbox to cool down and repeat the test.

–  Guide filler nozzle of ATF charging device -V.A.G 1924- in from below through an opening in the deflector cap -arrow-, taking care not to push the deflector cap upwards out of position. –  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. –  Fit oil new seal on ATF inspection plug and tighten to 80 Nm. –  Exit from function “08 - Read measured value block” by touching ← key. –  Press “06 - End output”. –  Switch off ignition and unplug diagnostic connector.