- Raise the vehicle and support safely.
- Manually turn the pump pulley a few times.
- Turn the steering wheel all the way to the left and to the right 5 or
6 times.
- Disconnect the ignition high tension cable and, while operating the starter
motor intermittently, turn the steering wheel all the way to the left and
right 5–6 times for 15–20 seconds. During bleeding, make sure
the fluid in the reservoir never falls below the lower position of the filter.
If bleeding is attempted with the engine running, the air will be absorbed
in the fluid. Bleed only while cranking.
- Connect ignition high tension cable, start engine and allow to idle.
- Turn the steering wheel left and right until there are no air bubbles
in the reservoir. Confirm that the fluid is not milky and the level is up
to the specified position on the gauge. Confirm that there is very little
change in the fluid level when the steering wheel is turned. If the fluid
level changes more than 0.2 in. (5mm), the air has not been completely bled.
Repeat the process.
- Bleed the front steering system.
- Start the engine and let it idle.
- Loosen the bleeder screw on the left side of the control valve and install
special tool MB991230 to the bleeder.
- Turn the steering wheel all the way to the left, then immediately turn
it halfway back. Confirm that air has discharged with the fluid.
- Repeat Step 4 two or three times as required, to remove all air from the
rear system. Stop the engine.
- Loosen the power cylinder (rear steering gear) bleeder screw about 1⁄8 turn
and install the same special tool with the rotation prevention metal fixtures
to prevent the bleeder from opening more.
- Start the engine and run to 50 mph to circulate the fluid.
- Maintain a speed of 20 mph and turn the steering wheel back and forth.
Air should be discharged through the tube of the special tool and into the
oil reservoir.
- Repeat until all air is removed from the power cylinder.
