Note: The following operation includes 2 procedures:

1. Prefill transmission oil with the engine off after repair work on the transmission, removal and installation/exchange of gearbox or axle shafts. After prefilling with the engine off, the transmission oil level must be checked with the engine running.
2. Check transmission fluid level and correct with engine running.

Note: The fluid level must only be checked in conjunction with the fluid temperature, see diagnostic tool, after performing work or after a loss of fluid and must be corrected if necessary. Ensure that only the correct transmission fluid for AF40 is used for topping up.

1. Test conditions:

•	Vehicle must be on a flat surface.

•	Selector lever in position "P.

•	Engine OFF.

•	Connect diagnostic tool.

•	Delete fault memory.




2. Unscrew fluid filling bolt (1).




Note: If the transmission fluid is only checked, proceed with step 8.

Note: The rising tube (3) may not be unscrewed to check the oil level. With the fluid checking bolt unscrewed, oil flows out of the rising tube to the oil level (6) on the upper edge of the riser tube.

The rising tube must only be unscrewed in order to drain the transmission (1). In this case, the seal (2) on the rising tube must be replaced.
3. Prefill transmission fluid when changing gearbox and after repair work - engine off. Place collecting pan underneath.
4. Unscrew fluid check bolt (5) from rising tube.
5. Install NEW O-ring (4).
6. Add ATF until it drips out of the riser tube.

Caution: Refer to Fastener Caution in the Preface section.

7. Tighten fluid checking bolt.

Tighten
43 N·m (32 lb ft)

8. Top up ATF above fluid filler hole.

Top up 0.5 liters ATF.

Note: Correct checking of the transmission fluid level should be carried out with the engine running at 70-80°C transmission fluid temperature.

9. Check transmission fluid level and correct with engine running.
10. Start engine.
11. Move through selector lever positions with the foot brake depressed.

•	Switch selector lever from position "P" to "D" and back to "P". Hold each position for at least 2 seconds.

•	Repeat this process twice.

•	Check transmission fluid temperature with diagnostic tool.

-	Unscrew fluid checking bolt.

-	Drain transmission fluid until it drips out of the rising tube, otherwise add transmission fluid until it drips out of the rising tube.

-	Tighten fluid checking bolt with new O-ring.

Tighten
30 N·m (22 lb ft)

-	Top up 0.5 liters of ATF.

-	Switch off engine.

12. Tighten fluid filler bolt with new seal ring.

Tighten
40 N·m (30 lb ft)