Below is a description for M57 and M67 engines. The valve is located in the engine compartment next to the left cylinder head.
1. Release clamps (1) and quick coupler (2).
2. Remove valve (3) preheating.
3. Installation is carried out in the reverse order. Replace the sealing ring if necessary (2). Replace clamps (1) hose attachments.
4. After installation, bleed the power system, preventing the injection pump from running without fuel (dry).