Checking ATF level - vehicles with auxiliary ATF cooler: Audi A8 D2

🧭 Before you start

Fits: Audi A8 D2 (4D)

• Renewed: seal

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• The ATF filling system must be clean and the ATF must not be mixed with other types of ATF! — Secure reservoir for ATF filling unitV.A.G 1924 as high as possible on vehicle.
• 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).
• 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.
• The ATF level must not be too low or too high, otherwise this would impair the function of the gearbox.

🔩 Torque settings

Values can differ between engine variants — check the code stamped on your block.

ℹ️ Always cross-check the exact figure against your vehicle's factory manual before final tightening — a wrong torque can damage the engine. These values are extracted from workshop data and may not cover every variant or revision.

📋 Procedure

1. From list (1), select diagnostic function "“08 - Read measured value block”".
2. Use keypad (2) to enter "“4”" for "“Display group 4”" and confirm by touching Q key.
3. Reading for ATF temperature is shown in display zone (1).
4. Switch off engine and let gearbox cool down. The ATF temperature must not be higher than 30°C at the beginning of the test. [Note: The ATF level is checked at the ATF inspection plug.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).]
5. Drive vehicle onto a lifting platform or over an inspection pit in order for it to be absolutely horizontal.

6. Fill container of ATF filling unitV.A.G 1924 with ATF for automatic gearbox 01V; ATF specification .
7. ⚠ The ATF filling system must be clean and the ATF must not be mixed with other types of ATF! — Secure reservoir for ATF filling unitV.A.G 1924 as high as possible on vehicle.
8. Start engine and let it idle.
9. Vehicles with 6-cyl. TDI engine: loosen quick-release fasteners (2) and remove rear noise insulation.
10. Place used oil collection and extraction unitV.A.G 1782 below gearbox.
11. ⚠ Wear safety goggles. — When the ATF temperature reaches 35°C, unscrew the ATF inspection plug (2) and drain off any surplus ATF.
12. Renew seal (arrow) for ATF inspection plug. [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).]
13. Fit new seal on ATF inspection plug and tighten to 80 Nm. The ATF check is now completed. — 80 Nm (59 lb-ft)
14. Exit from function "“08 - Read measured value block”" by touching ← key.
15. Press "“06 - End output”".
16. Switch off ignition and unplug diagnostic connector. [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.]
17. Guide filler nozzle of ATF filling unitV.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.
18. Fill with ATF using ATF filling unitV.A.G 1924 until ATF emerges from inspection hole. [Note: The ATF level must not be too low or too high, otherwise this would impair the function of the gearbox.]
19. Fit new seal on ATF inspection plug and tighten to 80 Nm. — 80 Nm (59 lb-ft)
20. Exit from function "“08 - Read measured value block”" by touching ← key.
21. Press "“06 - End output”".
22. Switch off ignition and unplug diagnostic connector.

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