2.2L Diesel Engine Management System Mercedes Vito 1

CDI electronic fuel injection control unit
The CDI control unit controls the following systems based on signals received from master nodes and sensors: fuel supply; the amount of injected fuel; exhaust gas...

Fuel Injection Coolant Temperature Sensor CD1
Removing 1. Disconnect the compressed air supply pipe from mixing chamber 1 (see fig.5.56). Pic. 5.56. CDI coolant temperature sensor: 1. Mixing chamber, 2. Wiring...

Air mass meter
Removing 1. Disconnect the wiring connector from the B39 flowmeter (see fig.5.57). Pic. 5.57. Air mass meter: 1. Collar, 2. Air intake pipe, 3. Bolt, 4. Air filter...

High pressure fuel pump intermediate gear
Removing 1. Disconnect the negative cable from the battery. 2. Remove injectors Y20-Y23 (see fig.5.58). Pic. 5.58. High pressure fuel pump intermediate gear: 1. Exhaust...

High pressure fuel pump
Removing 1. Turn off the ignition. 2. Remove the vacuum pump. 3. Disconnect the wiring connector from the shut-off valve Y73 (see fig. 5.59). Pic. 5.59. High pressure...

Vacuum pump
Removing 1. Remove the engine top bracket 6 (see fig.5.60). Pic. 5.60. Vacuum pump: 1. Vacuum tube, 2. Vacuum pump, 3. Doggy, 4. Bolt, 5. O-ring, 6. Engine bracket. 2....

Fuel cut-off valve
Removing 1. Disconnect wiring connector 1 from shutoff valve Y75 (see fig.5.61). Pic. 5.61. Fuel cut-off valve: 1. Wiring connector, 2. Fuel injection line, 3. Drain...

Fuel pressure sensor in the distributor
Removing 1. Remove fuel filter 1 (see fig.5.62). Pic. 5.62. Fuel pressure sensor in the distributor: 1. Fuel filter, 2. Wiring connector, 3. Distributor, B66. Fuel...

Fuel pressure control valve
Removing 1. Disconnect wiring connector 1 from fuel pressure control valve. 2. Remove fuel pressure regulating valve Y74 (see fig.5.63). Pic. 5.63. Fuel pressure control...

Fuel distributor
Removing 1. Disconnect the negative cable from the battery. 2. Remove the air filter and mixing chamber with EGR valve. 3. Remove the decorative panel of the cylinder...

Crankshaft position sensor
Removing 1. Turn off the ignition. 2. Disconnect the wiring connector B73.1 of the crankshaft position sender (see fig.5.65). Pic. 5.65. Crankshaft position sensor: 1....

Camshaft speed sensor
Removing 1. Remove the decorative panel of a cover of a head of the block of cylinders. 2. Disconnect wiring connector 1 from B48 camshaft speed sensor (see fig. 5.66)....

Nozzles — removal and installation
Removing 1. Disconnect the negative cable from the battery. 2. Remove the mixing chamber with the EGR valve. 3. Remove the decorative panel of the cylinder head cover 8...

Glow plugs
Removing 1. Disconnect the negative cable from the battery. 2. Remove the decorative panel of the cylinder head cover 1 (see fig.5.68). Pic. 5.68. glow plugs: 1....

Pre-glow relay
Removing 1. Disconnect the negative cable from the battery. 2. Disconnect wiring connector A15.1 and A15.2 (see fig.5.69). Pic. 5.69. Preglow relay: A15. Preheat relay,...

Checking engine compression
1. Warm up the engine to an operating temperature of approximately 80°C. 2. Turn off the ignition and remove the key. 3. Remove glow plugs R13-R16 (see fig.5.70). Pic....

Generator — removal and installation
Removing 1. Disconnect the negative cable from the battery. 2. Remove the alternator drive belt. 3. Remove the compressed air supply tube. 4. Disconnect the compressed...

Starter — removal and installation
Removing 1. Disconnect the negative cable from the battery. 2. Unscrew the nut 1 fastening the wire 4 to the starter M1 (see fig. 5.72). Pic. 5.72. Starter: 1, 2. Nut,...