300SL (129.061) L6-3.0L (104.981) (1991)
Fuel Pressure Regulator: Service and Repair
Fuel Injectors And Fuel Pressure Regulator Location
1.
Remove the air cleaner assembly.
2.
Disconnect the NEG. battery terminal and insulate.
WARNING:High pressure fuel may be released.
3.
Disconnect the fuel inlet and outlet at the fuel pressure regulator. Catch escaping fuel with a cloth.
4.
Remove the mounting screws for the fuel pressure regulator and lift out the fuel pressure regulator.
5.
Install in reverse manner.
6.
Run the engine and check for fuel leaks.