Torque Specifications
| Description | N.m | Lb-ft | Lb-in |
|---|---|---|---|
| Steering wheel retaining bolt | 65 | 48 | |
| Upper steering column pinch bolt | 35 | 26 | |
| Lower steering column pinch bolt | 35 | 26 | |
| Upper steering column retaining nuts | 30 (1) | 22 | |
| Lower steering column retaining nuts | 9 | 80 | |
| Tilt solenoid retaining bolts | 1 | 9 | |
| Telescopic solenoid retaining bolts | 1 | 9 | |
| Telescopic housing retaining bolts | 8 | 71 | |
| Steering column lower shroud retaining screws | 3 | 27 | |
| (1) If you are re-using this fixing on a vehicle built prior to VIN H16709, then tighten to 25 Nm. If you are replacing a fixing, then you must tighten to 30 Nm. | |||
| (1) | If you are re-using this fixing on a vehicle built prior to VIN H16709, then tighten to 25 Nm. If you are replacing a fixing, then you must tighten to 30 Nm. |
Scheme 1
Scheme 2
The steering lock actuator is secured to the lower part of the adjustable steering column and consists of a locking pin and an electric motor. The electric motor has a hall effect sensor which detects lock and unlock states, this makes the lock actuator more sensitive for the time taken to lock and unlock. A bus controller chip has also been added to cope with the high integrity bus traffic. The column is locked and unlocked by inserting and removing the ignition key respectively. The instrument cluster provides control for the column adjustment by means of a power tilt/telescope switch on the side of the steering column lower shroud, memory recall and easy entry or exit.
The upper column is a tilt and telescopic type consisting of one electric motor to tilt and telescope the steering column. The steering column has 50 mm of telescopic movement and 5 degrees of tilt adjust. The power tilt and telescope function allows the driver to manually set the steering column position by using the power tilt/telescope switch, regardless of the ignition switch position. When moving the column, the switch will only allow one directional movement at a time.
Crash load absorption is provided by a unique peeling tube mechanism. If an accident occurs and the driver is not wearing a safety belt the steering column must be replaced. The steering column must also be replaced if the air bag is deployed.
The upper steering column will need to be calibrated if the column or the instrument cluster is renewed. Calibration is carried out using the Jaguar approved diagnostic system. No routine maintenance of the steering wheel and driver airbag is required. Any setting of steering wheel for misalignment must be achieved by adjusting the tie rods.
The lower steering column has the advantage of having a swing link mechanism, this is fitted to provide movement to occur in the steering system when travelling over bumps and obstacles. This system improves the driver feel of the steering system as vibrations through the suspension assembly are greatly decreased.
The lower steering column swing link will need to be calibrated if the lower slider pinch bolt has been released or removed and if the lower column is replaced. No routine maintenance of the swing link or lower universal joint is required as these components are sealed with a special lubricant and high temperature resistant seals.
For additional information, refer to STEERING SYSTEM-GENERAL INFORMATION (2003.5-09) .