Pump Delivery Pressure Test

Use a clamp to block off the pressure and suction hoses. Remove the pressure hose and banjo bolt from steering pump. Install test gauge adapter and sealing washer in place of banjo bolt. Install pressure gauge. Remove hose clamp from suction hose. See Fig 1 .
Start engine and run at idle. Record pressure gauge reading. Maximum running time for this measurement is 10 seconds. If pressure is not to specification, replace pressure relief valve or pump. See PUMP DELIVERY PRESSURE table. Remove pressure testing gauge and install pressure line and banjo bolt. Refill fluid reservoir as necessary. Start engine and check for leaks.

PUMP DELIVERY PRESSURE

Application	psi	kg/cm²
80 & 90	1450-1595	102-112
100 & 200	2103-2393	148-168

Fig 1: Testing Pump Delivery Pressure

Courtesy of AUDI OF AMERICA, INC.