Removal and installation of AT and torque converter (BMW 7 Series E38)

Removal

Below is a description using the example of AT A5S 310Z engine M60/1.

1. Disconnect the negative cable from the battery.

2. Remove the exhaust system assembly and its heat shields (see chapter Fuel and exhaust systems).

3. Remove the mudguard mounting brackets on both sides.



4. On models up to 08.1995 issue. set the selector lever to the "P" position and install tool No.24 5 240 on the control unit balancer. Loosen the nut (1).

When installing, adjust the selector lever.

5. On models since 08.1995 issue. release the nut (2) while holding the clamp (1).

When installing, adjust the selector lever.

6. Use a screwdriver to remove the retainer (1) and pull out the rod (2).





7. Remove the heat shield from the left side of the front axle beam. Disconnect the oil line mounting brackets from the engine crankcase.



8. Place a container underneath to collect the leaking oil, loosen the fastener (1) and release the oil line tips from the AT crankcase.

Use new oil line sealing rings when assembling.

9. Support the AT using special devices No.00 2 030/24 5 300.





10. Disconnect the lambda probe wiring from the AT mounting crossbar (see chapter Fuel and exhaust systems), unscrew the mounting bolts and remove the AT crossbar.

11. Disconnect the propeller shaft from the AT and hang it up (see chapter Cardan and drive shafts, gearbox, differential and hub assemblies).





12. Disconnect the electrical wiring connectors and remove it from the mounting brackets to the AT housing.





13. Remove the plug.



14. Using special key No.24 1 110, loosen the 4 torque converter mounting bolts.



15. Remove the bolt and move the positive battery terminal cable casing downwards.

16. Insert tool (bar) No.23 3 030 between the engine oil pan and the front axle beam.

17. Turn the front wheels to the left and lower the AT.





18. To prevent the torque converter from slipping out, secure it relative to the AT. To do this, insert tool No.24 4 080 into the window (1) of the AT housing and hold the torque converter with it.



19. Unscrew the AT mounting bolts, move it back, pull out and lower the AT.



20. If necessary, remove the torque converter. To do this, screw in tools No.24 4 000 and remove the torque converter from the AT.

At the same time, ATF leaks out.

Installation

1. Installation is carried out in reverse order. Please note the following points.

2. When installing the torque converter, do not damage the sealing ring and bearing. Insert the torque converter into the housing, press it lightly and turn it until the grooves of the torque converter engage with the drive shaft of the oil pump. Press the torque converter until it stops.

3. Screw in the AT mounting bolts only together with the washers.



4. When installing the AT, tool No.24 2 300 must be positioned coaxially with the holes in the compensating coupling, and there must be access to the hole (1) of the compensating coupling through the oil pan window. Screw tool No.24 2 300 into the threaded hole and, if necessary, turn the torque converter so that this hole is at the bottom.

5. Make sure that the centering bushings are present. If necessary, remove the centering bushings from the AT housing and insert them into the cylinder block. Replace damaged centering bushings.

6. After completing the work, check the ATF level and correct it if necessary (see chapter Vehicle settings and routine maintenance).