Layout of components - TD4 diesel engine
NOTE: The right-hand drive (RH) option is shown, for the left-hand drive (LH) option, the same applies
| Pos. | Spare part number | Name |
| 1 | - | Suction hose - from tank to pump |
| 2 | - | Tank |
| 3 | - | Return line for working fluid - from steering gear to reservoir |
| 4 | - | High pressure supply line - from pump to steering gear |
| 5 | - | Power steering pump |
| 6 | - | Steering rod |
| 7 | - | Seal and gasket of the partition |
| 8 | - | Valve block |
| 9 | - | Steering gear |
| 10 | - | Bolt |
Layout of components - i6 petrol engine
NOTE: Left hand drive vehicle shown, same for right hand drive vehicle
| Pos. | Spare part number | Name |
| 1 | - | Working fluid cooler |
| 2 | - | Suction hose - from tank to pump |
| 3 | - | Tank |
| 4 | - | Return line for working fluid - from steering gear to cooler |
| 5 | - | Steering rod |
| 6 | - | High pressure supply line - from pump to steering gear |
| 7 | - | Power steering pump |
| 8 | - | Valve block |
| 9 | - | Seal and gasket of the partition |
| 10 | - | Bolt |
| 11 | - | Steering gear |
The power steering system includes a hydraulic steering gear, a power steering pump, a reservoir and a cooler for the working fluid on petrol engine variants.
The steering system uses a conventional rack and pinion steering mechanism with power assistance, mounted on the rear of the subframe.
The TD4 diesel engine and the i6 petrol engine use different power steering pumps. The diesel engine uses a variable-displacement vane pump to improve engine efficiency. The petrol engine uses a fixed-displacement vane pump to improve steering precision and reactive action. Both pumps have high flow rates, which improves dynamic steering performance.
Gasoline-powered vehicles are equipped with a liquid cooler that cools the power steering fluid supplied by a fixed-volume pump.
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