The automatic transmissions have four types; W4A4B for 4G69 engine vehicles, W4A42 for 4G64 engine vehicles, F4A42 and W5A51 for 4G63 engine vehicles. Each transmission has the following features.
  • The F4A42 transmission is basically the same as that adopted for the COLT/LANCER.
  • The W4A42 transmission is based on the F4A42 transmission, however, the transfer case is added in order to be installed to 4WD vehicles.
  • Although W4A4B transmission is basically the same as W4A42 type, the gear ratio at 2nd, 4th and reverse, and electronic control system have been changed.
  • The W5A51 transmission is based on the F5A42 transmission adopted for FTO, however, the number of discs of the brake and clutch is increased, allowing to increase the torque capacity. In addition to the above, the transfer case is added in order to be installed to 4WD vehicles.
For the vehicles with the W5A51 transmission, the steering shift switch and downshift inhibition buzzer are added.
NOTE: Refer to 1996 COLT/LANCER Technical Information Manual (Pub. No. PYME9502) and 1998 FTO Technical Information Manual (Pub. No. PYME9801) for more information regarding the description of structure and operations.
SPECIFICATIONS
<4G69>
Item
Specifications
Transmission model
W4A4B
Torque converter
Type
3-element, 1-stage, 2-phase type
Lock-up
Provided
Stall torque ratio
2.0
Transmission type
4 forward speeds, 1 reverse speed, fully automatic
Transmission gear ratio
1st
2.842
2nd
1.573
3rd
1.000
4th
0.688
Reverse
2.214
Clutch
Multi-disc type (3 sets)
Brake
Multi-disc type (2 sets)
Manual control system
P-R-N-D (4 positions) + sport mode
Shift pattern control
Electronic control (INVECS-II)
Hydraulic control during shifting
Electronic control (Each clutch hydraulically independently controlled)
Lock-up clutch control
Electronic control
Transmission fluid
Specified lubricants
DIA QUEEN ATF SP III
Quantity L
8.1
Transfer oil
Specified lubricants
Hypoid gear oil API classification GL-5 SAE 90
Quantity L
0.55

<4G64>
Item
Specifications
Transmission model
W4A42
Torque converter
Type
3-element, 1-stage, 2-phase type
Lock-up
Provided
Stall torque ratio
2.01
Transmission type
4 forward speeds, 1 reverse speed, fully automatic
Transmission gear ratio
1st
2.842
2nd
1.529
3rd
1.000
4th
0.712
Reverse
2.480
Clutch
Multi-disc type (3 sets)
Brake
Multi-disc type (2 sets)
Manual control system
P-R-N-D (4 positions) + sport mode
Shift pattern control
Electronic control (INVECS-II)
Hydraulic control during shifting
Electronic control (Each clutch hydraulically independently controlled)
Lock-up clutch control
Electronic control
Transmission fluid
Specified lubricants
DIA QUEEN ATF SP III
Quantity L
8.1
Transfer oil
Specified lubricants
Hypoid gear oil API classification GL-5 SAE 90
Quantity L
0.55

<4G63>
Item
Specifications
Engine model
4G63-SOHC
4G63-DOHC
Transmission model
F4A42
W5A51
Torque converter
Type
3-element, 1-stage, 2-phase type
Lock-up
Provided
Stall torque ratio
1.93
1.7
Transmission type
4 forward speeds, 1 reverse speed, fully automatic
5 forward speeds, 1 reverse speed, fully automatic
Transmission gear ratio
1st
2.842
3.789
2nd
1.529
2.057
3rd
1.000
1.421
4th
0.712
1.000
5th
-
0.731
Reverse
2.480
3.865
Clutch
Multi-disc type (3 sets)
Multi-disc type (4 sets)
Brake
Multi-disc type (2 sets)
Multi-disc type (2 sets), band type (1 sets)
Manual control system
P-R-N-D (4 positions) + sport mode
P-R-N-D (4 positions) + sport mode (with steering shift switch)
Shift pattern control
Electronic control (INVECS-II)
Hydraulic control during shifting
Electronic control (Each clutch hydraulically independently controlled)
Lock-up clutch control
Electronic control
Transmission fluid
Specified lubricants
DIA QUEEN ATF SP III
Quantity L
7.7
8.8
Transfer oil
Specified lubricants
-
Hypoid gear oil API classification GL-5 SAE 90
Quantity L
-
0.55

SECTIONAL VIEW
<F4A4>
   


1.
Overdrive clutch


2.
Reverse clutch


3.
Overdrive planetary gear set


4.
Output planetary gear set


5.
Second brake


6.
Low-reverse brake


7.
One-way clutch


8.
Transfer drive gear


9.
Transmission case


10.
Underdrive clutch


11.
Oil pump


12.
Torque converter housing


13.
Damper clutch


14.
Torque converter


15.
Input shaft


16.
Differential


17.
Differential drive gear


18.
Transfer driven gear


19.
Output shaft


20.
Rear cover

   
<W4A4>
   


1.
Overdrive clutch


2.
Reverse clutch


3.
Overdrive planetary gear set


4.
Output planetary gear set


5.
Second brake


6.
Low-reverse brake


7.
One-way clutch


8.
Transfer drive gear


9.
Transmission case


10.
Underdrive clutch


11.
Oil pump


12.
Torque converter housing


13.
Damper clutch


14.
Torque converter


15.
Input shaft


16.
Transfer assembly


17.
Viscous coupling unit


18.
Front differential


19.
Centre differential


20.
Differential drive gear


21.
Transfer driven gear


22.
Output shaft


23.
Rear cover

   
<W5A51>
   


1.
Overdrive clutch


2.
Reverse clutch


3.
Overdrive planetary gear set


4.
Output planetary gear set


5.
Second brake


6.
Low-reverse brake


7.
One-way clutch


8.
Transfer drive gear


9.
Transmission case


10.
Underdrive clutch


11.
Oil pump


12.
Torque converter housing


13.
Damper clutch


14.
Torque converter


15.
Input shaft


16.
Transfer assembly


17.
Viscous coupling unit


18.
Front differential


19.
Centre differential


20.
Differential drive gear


21.
Output shaft


22.
Transfer driven gear


23.
Direct planetary gear set


24.
Reduction brake


25.
Direct clutch


26.
One-way clutch


27.
Rear cover

©2004 Mitsubishi Motors Corporation