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Home >> Volvo >> 2009 >> XC70 Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Electrical Modules And Components - Design And Function - 5 Of 5 >> Suspension And Steering >> Design And Function >> Steering >> The Power Steering System
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The Power Steering System

The image above shows speed dependent power steering. The steering gear (5) is of the rack and pinion type and grease lubricated. It is installed with two screws in the subframe. The system uses a belt driven servo pump located on the engine. Location varies according to engine type.

The speed dependent power steering, adjusts the power steering assistance according to the driving conditions. Steering becomes lighter when maneuvering at low speeds, for example, when parking the vehicle. The power steering assistance reduces in relation to the speed increase, and is non existent at approximately 80 km/h.

The driver can further adjust the power steering assistance to their own driving style. There are three modes with different settings for degree of power assistance: low, medium and high.