Power supply and exhaust system for engines Mercedes Vito 2 (W639)

Functional diagram of the air supply system
Air supply system (functional diagram, the arrangement of elements is shown conditionally) VN 2.108 1. Intake manifold 2. Exhaust manifold 3. Turbocharger 4. Charge air...

Turbocharger — purpose, control
Purpose Supplying additional air to the engine cylinders using the energy of exhaust gases. Control of boost pressure of a constant geometry turbocharger of a gas...

Removal and installation a turbocharger
VN 2.111 1. Compressed air hose 4. Vacuum hose 5. Screws Tightening torques for threaded connections Fastening the flange connection of the exhaust pipe to the...

Removal and installation the intercooler
VN 2.112 1. Air ducts 2. Cooler mounting screws 3. Brackets 4. Intercooler of supercharged air

Elements of the air supply system
The figures in this subsection show the elements of the air supply system. The captions to the figures indicate the engine configuration options (codes) if the given...

Low pressure circuit
VN 2.117 1.TKVD 2. Fuel tank 3. Fuel filter 4. Fuel temperature sensor (B50) 5. Fuel pump, combined with fuel level sensor (MLS) 6. Fuel injection pump (M41) 7. Pressure...

High pressure circuit
In the high-pressure circuit, fuel is supplied to the high-pressure fuel rail (hereinafter - TKVD), from where it is supplied to each nozzle separately using...

High pressure fuel pump
VN 2.120 1. Fuel injection pump (M41) 2. Fuel quantity control valve (Y94) 3. Fuel temperature sensor (B50) 4. High pressure fuel line VN 2.121 Fuel injection pump....

Fuel injection pump drive
VN 2.124 Removing and installing the fuel injection pump drive sprocket 1. High pressure pump drive chain wheel 2. Bushing 3. Screw 4. Fuel injection pump 5. Exhaust...

High pressure fuel manifold (HPFC)
Purpose The high-pressure fuel pump is designed to accumulate fuel under high pressure developed by the high-pressure fuel pump, distribute fuel to the injectors and...

High pressure fuel lines
Removal and installation 1. Unscrew the nuts securing the high-pressure pipes on the injector and distributor, holding the threaded inserts of the injectors from...

Pressure regulating valve in the high pressure fuel system
Purpose The pressure regulating valve in the high-pressure fuel pump (Y74) maintains the pressure at a level set by the engine control unit (A53). Accommodation The...

Fuel injectors
Purpose The injectors are designed to inject atomized fuel into the combustion chamber with the most advantageous spray pattern. Design VN 2.128 1. Electrical connector...

High pressure pipe connection fitting to fuel injector
Removal and installation 1. Remove the injector. 2. Install protective caps (4, 5) on the injector nozzle and fuel system fitting to protect against contamination and...

Exhaust gas system
Below are the elements of the exhaust system for vehicles of various types of equipment. The main indicator of pressure from the point of view of the exhaust system...

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Vito 1 (1996-2003)