300SEL (126.025) L6-3.0L (103.981) (1988)
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Oil Pressure Regulator Valve: Service and Repair
Removing and installing oil pressure relief valve in oil pump
Preceding work:
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Oil sump removed. See: Oil Pan/Service and Repair
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Remove screw plug (551), (50 Nm)
Caution! Screw plug (551) is spring-tensioned.
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Remove compression spring (549).
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Remove guide pin (550).
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Remove piston (548)
Special Tools
