300SEL (126.025) L6-3.0L (103.981) (1988)
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Engine Oil Pressure: Testing and Inspection
- Engine oil temperature set to 90 °C.
- Oil level in engine check, adjust to correct level.
- Remove oil pressure sensor (B5).
- Screw on in place of oil pressure sensor (B5) threaded pipe fitting (5) with seal (6).
- Connect pressure gauge (1) with pressure pipe (3).
- Close (turn to closed position) T-valve (2) at pressure gauge (1).
- Measure and compare with figures in table oil pressure at stated engine speed.
