SPECIFICATIONS
| Item | Specification |
|---|---|
| * Recommended lubricant | ATF Shell M13754. Land Rover Part No. TYK500050 |
| + Torque converter nose | Molybdenum disulphide grease to specification FB180 |
LUBRICANTS
| CAUTION | * Do not use any lubricant other than that specified. |
| CAUTION | + Do not over lubricate. |
| Item | Capacity |
|---|---|
| ** Initial dry fill | 9.5 liters (16.7 pints) (10.0 US qts) |
CAPACITY
| CAUTION | ** A final oil level check/top-up must be carried out when the unit has been installed. |
| Item | Specification |
|---|---|
| Automatic transmission | ZF 6HP26 |
| Speeds | 6 Forward, 1 Reverse |
| Gear ratios | |
| First | 4.17:1 |
| Second | 2.340:1 |
| Third | 1.521:1 |
| Fourth | 1.143:1 |
| Fifth | 0.867:1 |
| Sixth | 0.691:1 |
| Reverse | 3.403:1 |
| Torque converter | Sachs W260 2GWK with slip controlled, dual friction faced lock-up clutch |
| Transmission control module | |
| Location | Located in transmission casing |
| Type | 1904 |
GENERAL SPECIFICATION
| Description | Nm |
|---|---|
| Transmission heat shield bolts | 10 |
| Transmission heat shield bracket bolts | 10 |
| Fuel pipe heat shield bolts | 10 |
| Transmission selector lever nut | 12 |
| Main control valve body Torx screws | 8 |
| Fluid pan Torx screws | 8 |
| Transmission support insulator to transmission bolts | 45 |
| Selector cable bracket bolts | 10 |
| Flexplate to torque converter bolts | 45 |
| Transmission bolts | 45 |
| Transmission breather pipe bolt | 25 |
| Transmission fluid lines bolt | 10 |
| Transmission fluid drain plug | 9 |
| Transmission fluid filler/level plug | 35 |
TORQUE SPECIFICATIONS
Scheme 45
| Item Number | Description |
|---|---|
| 1 | PRND liquid crystal display (LCD) display |
| 2 | M/S LCD display |
| 3 | Selector lever assembly |
| 4 | Instrument cluster |
| 5 | Automatic transmission |
| 6 | Transmission fluid cooler |
TORQUE CONVERTER
| Item Number | Description |
|---|---|
| 1 | Impeller |
| 2 | Turbine |
| 3 | Stator |
| 4 | Freewheel |
| 5 | Torque converter hub |
| 6 | Stator shaft |
| 7 | Turbine shaft |
| 8 | Drive plate |
| 9 | Journal - Drive plate location |
| 10 | Torque converter cover |
| 11 | Lock-up clutch piston |
| 12 | Lock-up clutch plate |
The torque converter is the coupling element between the engine and the gearbox and is located in the transmission housing, on the engine side of the transmission. The driven power from the engine crankshaft is transmitted hydraulically and mechanically through the torque converter to the transmission. The torque converter is connected to the engine by a drive plate.
The torque converter comprises an impeller, a stator and a turbine. The torque converter is a sealed unit with all components located between the converter housing cover and the impeller. The 2 components are welded together to form a sealed, fluid filled housing. With the impeller welded to the converter housing cover, the impeller is therefore driven at engine crankshaft speed.
The converter housing cover has threaded bosses which provide for attachment of the engine drive plate which is connected to the engine crankshaft. The threaded bosses also provide for location of special tools which are required to remove the torque converter from the bell housing.
ENGINE SPEED AND TORQUE MONITORING
The engine control module (ECM) constantly supplies the transmission control module (TCM) with information on engine speed and torque through messages on the controller area network (CAN) bus. The transmission control module (TCM) uses this information to calculate the correct and appropriate timing of shift changes.
If the messages are not received by the engine control module (ECM), the transmission control module (TCM) will implement a back-up strategy to protect the transmission from damage and allow the vehicle to be driven.
In the event of an engine speed or torque signal failure, the transmission will adopt the electrical limp home mode with the transmission operating in a fixed gear.