Genuine Volvo S70 Power Steering Pump

Volvo S70 Power Steering Pump Parts and Q&A

• Power Steering Pump
  8251736
  Q: How to remove the Power Steering Pump and related components on Volvo S70?

  A:

  To remove the auxiliary drivebelt, drain approximately three litres of coolant from the radiator, and disconnect the radiator top hose from the thermostat housing. For improved access, remove the cold air inlet duct from the ECU box, disconnecting the ECU box air inlet duct and the fluid supply hose from the clip on the engine oil dipstick tube or above the pump pulley. For models with a remote-mounted reservoir, lift the reservoir out of its mounting and clamp the fluid hose to reduce fluid loss, then slacken the fluid pressure pipe union nut one quarter of a turn and undo the four mounting bolts at the rear of the pump. For models with a pump-mounted reservoir, undo the upper mounting bolt of the reservoir guard plate, remove the spacer sleeve, and slacken the lower mounting nut, then slacken the fluid pressure pipe union nut one quarter of a turn and undo the five pump mounting bolts, carefully lifting the pump out of its location. For all models, place absorbent rags below the pump, unscrew the pressure pipe union, and recover the O-ring. Separate the fluid supply hose from the pipe stub on the pump without using excessive force, and if necessary, make a small cut lengthways in the hose to facilitate removal, ensuring the hose is not shortened beyond the marking stripe. Raise and support the front of the car so the wheels are just clear of the ground, position a suitable container beneath the front of the car, and collect fluid from the hoses as the steering is turned from lock to lock. If a new pump is to be fitted, have the pulley and reservoir transferred by a dealer, as special tools are required. For refitting, follow the reverse order of removal, using a new O-ring on the pressure pipe union, trimming the return hose if it was cut, tightening the mounting and guard plate bolts to the specified torque, refitting the auxiliary drivebelt, topping up the cooling system, removing the hose clamp, refitting the reservoir into its mounting, and refilling the fluid reservoir while bleeding the system.