1998 OPEL FRONTERA automatic transmission

AUTOMATIC TRANSMISSION (AW30-40LE) 7A–95
249RY00011
249RY00012
244RY00017
240RY00028
4. Solenoid wiring
Disconnect the connectors from the solenoid S1(1), S2(2),
lock-up solenoid (3) and pressure control solenoid (4).
Turn over transmission, remove the solenoid wiring stopper
plate from the case.
Pull the wiring out of the transmission case.
5. Valve body
Remove the twenty bolts from valve body.
6. Check valve, spring
7. Spring
Remove the check valve and spring.
Remove two springs from C-0 accumulator piston.

7A–96 AUTOMATIC TRANSMISSION (AW30-40LE)
240RY00010
240RY00011
240RY00012
8. Accumulator piston (B-2)
9. Accumulator piston (C-2)
Remove accumulator pistons and springs from
transmission case.
10. Accumulator piston (B-0)
Applying compressed air to the oil hole, remove the B-0
accumulator piston and spring.
11. Accumulator piston (C-0)
Remove the C-0 accumulator piston.

AUTOMATIC TRANSMISSION (AW30-40LE) 7A–97
DISASSEMBLY OF MAJOR COMPONENTS (3)
248L100001
Disassembly steps
1. Oil pump
2. Race
3. OD planetary gear and OD direct clutch
4. Race
5. OD planetary ring gear
6. Snap ring
7. Flange, plate and disc
8. Bearing and race
9. Snap ring
10. OD suppor t
11. Race
12. Snap ring
13. Second coast brake piston assembly
14. Direct clutch and forward clutch
15. E-ring and pin
16. Second coast brake band
17. Front planetary ring gear
18. Bearing and race
19. Race
20. Snap ring
21. Front planetary gear
22. Drum and one-way clutch
23 Snap ring
24. Flange, plate and disc
25. Snap ring
26. Rear planetary gear, second brake drum
and output shaft
27. Bearing

7A–98 AUTOMATIC TRANSMISSION (AW30-40LE)
241RY00003
241RY00002
252L100001
252L100017
Important operations
1. Oil pump
Remove seven bolts fixing the oil pump to the transmission
case.
Remove the oil pump.
2. Race
Remove race from oil pump.
3. OD planetary gear and OD direct clutch
Remove the overdrive planetary gear and overdrive direct
clutch with thrust needle bearing from the transmission
case.
4. Race
Remove the race from OD planetary gear.

AUTOMATIC TRANSMISSION (AW30-40LE) 7A–99
252RY00002
252RY00003
244RY00001
246RY00001
5. OD planetary ring gear
Remove the overdrive planetary ring gear from the
transmission case.
Check piston stroke of overdrive brake
Place a dial indicator onto the overdrive brake piston as
shown in the figure.
Measure the stroke applying and releasing the compressed
air (4– 8kg/cm
2, 57– 114 psi or 392– 785kPa) as shown in
the figure.
mm (in.)
If the values are nonstandard, select another flange.
6. Snap ring
Remove the snap ring.Piston stroke1.40–1.70
(0.0551–0.0669)
Available flange sizes mm (in.)
3.3 (0.130) 3.8 (0.150)
3.5 (0.138) 3.9 (0.154)
3.6 (0.142) 4.0 (0.158)
3.7 (0.146)

7A–100 AUTOMATIC TRANSMISSION (AW30-40LE)
246RY00026
247RY00003
246RY00002
252RY00004
7. Flange, plate and disc
Remove two flanges, three plates and four discs.
8. Bearing and race
Remove the thrust bearing and two races.
9. Snap ring
Using snap ring pliers, remove the snap ring.
10. OD support
Remove two bolts fixing the overdrive suppor t assembly to
the case.

AUTOMATIC TRANSMISSION (AW30-40LE) 7A–101
252RY00005
252RY00006
248RY00004
248RY00005
Install two removed bolts to the OD support, and pull out
the OD suppor t assembly.
11. Race
Remove two races from OD suppor t.
Check piston stroke of second coast brake
Place a mark on the second coast brake piston rod as shown in
the figure.
Using feeler gauge, measure the stroke applying the
compressed air (4 – 8kg/cm
2
, 57 – 114psi or 392 – 785 kPa) as
shown in the figure.
mm (in.)
If the values are nonstandard, replace piston rod and
recheck piston stroke. If piston stroke is nonstandard,
replace brake band.
There are two piston rods.Piston stroke 1.5–3.0 (0.059-0.118)
Rod length71.4mm (2.811 in.)
72.9mm (2.870 in.)

7A–102 AUTOMATIC TRANSMISSION (AW30-40LE)
248RY00006
248RY00007
248RY00008
248RY00009
12. Snap ring
Using snap ring pliers, remove the snap ring.
13. Second coast brake piston assembly
Applying compressed air to the oil hole, remove the second
coast brake piston assembly.
14. Direct clutch and forward clutch
Remove the direct clutch and forward clutch from the case.
15. E-ring and pin
Remove the E-ring from the pin.
Remove the pin from the brake band.