To check the power steering fluid level, first carry out a leak test. Secondly, carry out a pressure test to find out the malfunctioning part. Power steering pump not repairable. It is to be replaced, if defective. At the idle stage, the power steering pump has a delivery pressure of 110 - 120 bar (1595 - 1740 psi). Replacement pumps are not filled with fluid prior to installation as they are not packed with fluid. To prevent the replacement pump from being damaged or becoming noisy, fill the pump with hydraulic fluid (G 002 000) and rotate it by hand before installing. The system has a requirement for fluid of about 0.7 to 0.9 liters; do not use old fluid. Ensure to replace seals and discard old materials. Start out by taking away the lower center and right sound absorber panels. This will lessen tension on the ribbed belt. Also, mark the running direction if you plan to reuse it. Using an Allen key, lock the ribbed belt tensioner while removing the ribbed belt. Once the belt is removed, the pulley can be used to access the power steering pump. Using suitable clamps, clamp the supply and pressure lines. If applicable, disconnect the harness connector from the power steering pressure switch. Unbolt the banjo bolt to detach the pressure line. To remove the supply line, you will need to release the spring type hose clamp before unbolting the power steering pump from the bracket. When you are putting in a new pump, fill the pump with hydraulic fluid and rotate the pump by hand. To properly install the power steering pump, carefully follow the steps in reverse order. Ensure that the mounting bolts are tightened to specification. Then, attach the supply line using a spring-type hose clamp. Also, be sure to align the seam of the pump housing with the transverse mark.