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Omega A (1986-1993) Omega B (1993-1999) Omega B2 (1999-2003)
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  • Automatic transmission — removal and installation

Automatic transmission — removal and installation (Opel Omega A)

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1. Disconnect the negative battery cable.

2. Move the selector lever to the "N" position.

3. Remove the liquid level dipstick from the pipe.

4. Unscrew the dipstick tube from the hanger, then cut the belt and separate the filler tube from the receiver tube.

5. Unclip the cooling fan shroud from the radiator.

6. Disconnect the kickdown cable from the throttle lever, then squeeze the cable guard and disconnect it from the suspension. On carbureted models, first remove the air filter as described in Section 3.

7. Disconnect the inhibitor switch plug located on the bulkhead and pull the wiring harness out of the filler pipe.

8. Unscrew the front exhaust distribution pipe from the intermediate section mounting bracket and the exhaust manifold. Also unscrew the mounting bracket and heat shield.

9. Loosen the driveshaft cam nut on the front of the driveshaft one full turn.

10. Remove the bolts securing the front flexible driveshaft coupling plate to the transmission output flange. Move the shaft back from the output flange and tie it to the side.

11. Unscrew the knurled nut, disconnect the speedometer drive cable from the transmission (photo).

11. Unscrew the knurled nut, disconnect the speedometer drive cable from the transmission (photo).


12. Disconnect the gear shift rod from the transmission lever by releasing the spring clip and pivot pin (photo).



12. Disconnect the gear shift rod from the transmission lever by releasing the spring clip and…


13. Place a container under the transmission pan, unscrew the drain plug and drain the fluid (photo). Finally, install and tighten the drain plug.

13. Place a container under the transmission pan, unscrew the drain plug and drain the fluid…


14. Loosen the clamps, disconnect the flexible rubber hoses from the bottom. To ensure proper assembly and to prevent dust and dirt from entering, disconnect the diagonally opposite ends of the hoses, then put them back on the adjacent pipes.

15. Remove the bolts securing the front suspension to the engine.

16. Remove the front transmission cover and front suspensions.

17. Remove the bolts securing the torque converter to the drive plate. To access all the bolts, turn the engine with a wrench on the crankshaft pulley bolt.

18. Disconnect the torque converter from the drive disc.



19. Support the transmission with a jack.

20. Remove the two lower bolts securing the transmission to the engine.

21. Unbolt the rear mount crossmember from the underbody, then lower the transmission slightly.

22. Disconnect the solenoid valve and kickdown wires.

23. Remove the remaining bolts securing the transmission to the engine.

24. Lower the transmission and move it away from the engine, making sure to leave the torque converter with the pump.

25. If a new transmission is being installed, the following parts must be moved from the old unit:
  • Rear mount crossbar
  • Liquid lines
  • Inhibitor switch and wiring
  • Cable retainer
  • Selection lever
  • Solenoid valve
  • Downshift activation mechanism (kickdown)
  • Speedometer drive mechanism

26. Installation - reverse the removal procedure, but perform the following additional steps:
  • (a) Before connecting the transmission to the engine, check that the torque converter is positioned correctly. The "X" dimension should be as shown in Figure 6.14
  • (b) Apply a small amount of grease to the torque converter center pin
  • (c) Apply locking compound to the threads of the rear mount crossmember bolts
  • (d) Tighten all nuts and bolts to the specified torque Specification
  • (e) Adjust the kickdown cable (Chapter 16), and the selection lever rod (Chapter 17)
  • (j) Fill the transmission with the specified fluid (Chapter 2)

(j) Fill the transmission with the specified fluid (Chapter 2)


(j) Fill the transmission with the specified fluid (Chapter 2)


(j) Fill the transmission with the specified fluid (Chapter 2)


This article is available at russian, bulgarian, belarusian, ukrainian, serbian, croatian, romanian, polish, slovak, hungarian
Checking the article: Zinoviev Kirill

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Previous articles
Opel Omega A: Automatic gearbox
Next articles

Automatic transmission maintenance
Automatic Transmission Specifications
Automatic transmission kickdown cable — replacement
Automatic transmission kickdown cable — adjustment
Automatic transmission selector lever rod — adjustment
Automatic transmission selector lever — removal and installation
Inhibitor switch — removal and installation


See similar ones from other Opel car manuals:
▶ Automatic transmission repair — general information Opel Astra F (1991-1998, petrol)
▶ Automatic Transmission Fluid Replacement (ATF) Opel Corsa B (1993-2000)
▶ Automatic transmission Opel Kadett E (1984-1995)
▶ Automatic transmission Opel Vectra A (1988-1995, petrol)
▶ Automatic transmission mode selector Opel Zafira A (1999-2005, petrol)
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Omega B2 (1999-2003) 
  • General information
  • User manual
  • Maintenance
  • Troubleshooting
  • Power unit
  • Petrol 4-cylinder
  • Petrol 6-cylinder
  • Engine overhaul
  • Diesel engines 2.0 l
  • Diesel engines 2.5 l
  • Cooling and heating
  • Injection system (gasoline)
  • Fuel system (diesel)
  • Fuel system
  • Exhaust system
  • Ignition system
  • Transmission
  • Clutch
  • Mechanical gearbox
  • Automatic gearbox
  • Main gear and shafts
  • Chassis
  • Brake system
  • Car suspension
  • Steering
  • Body
  • Body elements
  • Electrical equipment
  • Equipment and devices
  • Electrical circuits
Omega B (1993-1999) 
  • General information
  • User manual
  • Tips for the car owner
  • Maintenance (gasoline)
  • Maintenance (diesel)
  • Power unit
  • Petrol engine SOHC 2.0 l
  • Petrol engine DOHC 2.0 l
  • Petrol engines 2.5 and 3.0 l
  • Repair of gasoline engines
  • Diesel engine 2.0 l
  • Diesel engine repair 2.0 l
  • Diesel engine 2.5 l
  • Cooling and heating
  • Power system (petrol)
  • Emission reduction
  • Fuel system (diesel 2.0 l)
  • Fuel system (diesel 2.5 l)
  • Launch system
  • Ignition system
  • Transmission
  • Clutch
  • Mechanical gearbox
  • Automatic gearbox
  • Drive shafts
  • Chassis
  • Brake system
  • Wheel suspension
  • Steering
  • Body
  • Exterior
  • Interior
  • Doors and windows
  • Electrical equipment
  • Equipment and devices
  • Wiring diagrams (early)
  • Wiring diagrams (late)
Omega A (1986-1993) 
  • General information
  • User manual
  • Maintenance
  • Changes and additions
  • Troubleshooting
  • Power unit
  • Gasoline engines
  • Diesel engines
  • Cooling system
  • Fuel system (gasoline)
  • Fuel system (diesel)
  • Ignition system
  • Transmission
  • Clutch
  • Mechanical gearbox
  • Automatic gearbox
  • Cardan shaft
  • Drive shafts
  • Chassis
  • Brake system
  • Car suspension
  • Steering
  • Body
  • Exterior
  • Interior
  • Electrical equipment
  • Power devices
  • Lighting and appliances
  • Electrical circuits
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