Details of the installation of the diaphragm fuel pressure regulator (except engine M 104.990)
40 - Diaphragm fuel pressure regulator; 40/8, 40/9 - O-rings; 40/10 - Retaining ring; 40/11 - Vacuum tube
Removing
1. Relieve regulator pressure (40) with a special valve.
2. Remove the regulator cover (40).
3. Disconnect the vacuum tube (40/11).
4. Remove retaining ring (40/10).
5. Remove the regulator (40) from fuel rail (17).
Installation
Installation is made in an order, the return to removal. Replace circlip and o-rings (40/8) And (40/9), lubricate them before installation.