B2CB04K1 - 406D9 AL4 AUTOMATIC GEARBOX
DIAGNOSIS OIL LEAK

| reference | cause of the leaks | remedies |
|---|---|---|
| 1 | selection shaft, under the multifunction switch | REMOVE THE MULTIFUNCTION SWITCH replace : the seal |
| 2 | filler plug | replace the cap seal |
| 3 | final drive output seals | replace the defective seal |
| 4 | speedometer take-off | REPLACE : the O-ring |
| 5 | heat exchanger | CHECK : - the tightness of the banjo bolt - the seals - the heat exchanger |
| 6 | flow control solenoid in the exchanger | REPLACE : the O-ring |
| 7 | between main housing and rear cover | REPLACE THE GEARBOX |
| 8 | hydraulic block harness aperture plug | REPLACE : the O-ring |
| 9 | hydraulic block housing | CHECK : - the tightness of the hydraulic block casing - the casing gasket |
| 10 | ball sector shaft | remove : - the hydraulic block casing - THE BALL BLADE - the ball sector shaft replace : the O-ring |
| 11 | between the main casing and the converter casing | REPLACE THE GEARBOX |

| reference | cause of the leaks | remedies |
|---|---|---|
| - | converter seal | remove - the gearbox - THE CONVERTER replace the converter seal |
| 12 | gearbox output speed sensor | replace : THE O-RING |
| 13 | level or drain plug | replace : the seal |
| 14 | pressure take-off plug | replace : the seal |
| 15 | supply pressure sensor | replace : THE O-RING |
| 16 | gearbox input speed sensor | replace : THE O-RING |