Hydraulic Pressure Test: Notes
WARNING: This page is about a different variant/trim than selected.
Required Special Tools:
- MB992744: Vehicle communication interface-Lite (V.C.I.-Lite)
- MB992745: V.C.I.-Lite main harness A
- MB992747: V.C.I.-Lite USB cable short
- MB992748: V.C.I.-Lite USB cable long
- MB991958: Scan Tool (M.U.T.-III Sub Assembly)
- MB991824: Vehicles Communication Interface (V.C.I.)
- MB991827: M.U.T.-III USB Cable
- MB991910: M.U.T.-III Main Harness A (Vehicles with CAN communication system)
CAUTION:
This test must be performed with the transmission fluid temperature within the range of 70 to 80°C (158 to 176°F).
- Check the engine oil level, and add if necessary.
- Warm up the engine, and then perform test drive for approximately 10 minutes.
- Check the transmission fluid for leaks, level and contamination. Then top up or change if necessary.
- Operate the parking brake securely, and then chock the wheels.
- Connect the scan tool (M.U.T.-III), and then start the engine.WARNING: For safety, operators must not stand in front of and at the rear of the vehicle during this test.CAUTION: During this test, leave the brake pedal depressed fully.
- Use the scan tool (M.U.T.-III) (data list item number 20: Secondary pressure) to measure the secondary pressure (line pressure) by observing the conditions listed in the hydraulic pressure table.
- Stop the engine.
- If not within the standard value, take necessary steps according to the hydraulic pressure test diagnosis table.