Diesel engine power system Mercedes G-Class (W463)

General information about the fuel system of diesel engines
When a diesel engine is running, outside air is sucked into its cylinders and compressed to high pressure. As a result of adiabatic heating, the air temperature rises to...

Fuel injection system checks
Note: Before you begin this procedure, please read the precautions in Section General information and safety precautions . If you detect signs of a malfunction in the...

Servicing air intake tract components
Models 463.323 (M612) Air purifier and air filter Air Cleaner Installation Details (M612) Replacing the filter element (M612) 1. Remove the cylinder head cover trim...

Removal air from the low pressure circuit of the fuel system
Using the M612 engine as an example Removal air from the low pressure circuit of the fuel system (using the M612 engine as an example) 1 — Fuel return line fitting 2 -...

Removal and installation the fuel pre-pump
Models 463.323 (M612) Pre-fuel pump installation details (M612) 1 - Vacuum line; 2 - Vacuum pump; 3 - Fuel supply line; 4 - Fuel return line; 13 - Pre-fuel pump 1....

Removal and installation of high pressure fuel pump (HPFP)
Models 463.323 (M612) Fuel injection pump installation details (M612) 1 - Pressure line; 2 - Fuel injection pump; 3 - Threaded nipple; 4, 5 - Brackets; 6 - Fuel return...

Removal and installation of fuel distribution line and injectors
Models 463.323 (M612) Highway Fuel Distribution Line Installation Details (M612) 1 - Pressure line support bracket; 19/1 - Pressure line of high-pressure fuel pump; 21 -...

Removal and installation the fuel line pressure sensor
Models 463.323 (M612) Fuel Rail Pressure Sensor Installation Details (M612) 21 — Highway B4/6 — Fuel pressure sensor 1. Remove the cylinder head cover trim panels. 2....

Removal and installation the fuel pressure regulator valve
Installation details of the pressure regulator valve on diesel models (M612/628) 1 — Fuel line (M612)/valve assembly (M628) 2 — Bolts (TORX) Y74 — Fuel Pressure...

Removal and installation the valve assembly
For models 463.333 (M628) Attention! Self-locking fasteners must be replaced! Valve installation details (M628) 1, 2, 3 - Fuel system pressure lines; 4 - Hollow bolt of...

Removal and installation the fuel cooler
Fuel Cooler Installation Details for Models 463.323 (M612) 1 - Fuel supply hose; 2 - Fuel drain hose; 3 - Coolant supply hose; 4 - Coolant drain hose; 5 - Fuel cooler; 7...

Removal and installation a low-temperature cooler
Models 463.323 (M612) Low temperature cooler installation parts (463.323) 1 - Air intake; 2, 3 - Cooling tract lines; 4 - Overflow hose; 5 - Auxiliary fan; 6 - Low...

Removal and installation the fuel injection control module
Models 463.323 (M612) CDI Control Module Installation Details on Models 463.323 (M612) (1 of 2) 1, 3 - Nuts; 2 - Screw; 4 - Support bracket; 5 - Connector; N3/9 - CDI...

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W463 (1999-2019)