Fuel supply system - Diesel engines

Chapter overview

• Technical data
  1
• 1 Safety information
  1
• 1.1 Safety regulations for working on fuel supply
  1
• 1.2 Safety measures when working on vehicles with a start/stop system
  3
• 2 Identification
  4
• 2.1 Engine number/engine data
  4
• 3 General information
  5
• Fuel supply system
  6
• 1 Procedure should vehicle be misfueled
  6
• 2 Fuel
  13
• 2.1 Assembly overview - fuel tank
  13
• 2.2 Removing and installing fuel tank
  21
• 2.3 Emptying fuel tank
  39
• 2.4 Removing and installing misfuelling prevention device
  52
• 2.5 Deactivating misfuelling prevention device
  55
• 3 Fuel delivery unit, fuel gauge sender
  56
• 3.1 Assembly overview - fuel delivery unit and fuel gauge sender
  56
• 3.2 Removing and installing fuel delivery unit, fuel gauge sender
  60
• 3.3 Removing and installing fuel gauge sender G
  73
• 3.4 Removing and installing fuel gauge sender 2 G169
  73
• 4 Wires
  78
• 4.1 Removing and installing fuel lines
  78
• 5 Plug-in connectors
  83
• 5.1 Separating plug-in connectors
  83
• 6 Fuel filter
  87
• 6.1 Assembly overview - fuel filter
  87
• 6.2 Removing and installing fuel filter
  91
• 6.3 Fuel hoses in the engine compartment
  94
• 6.4 Drain water from fuel filter
  95
• 7 Accelerator pedal
  96
• 7.1 Assembly overview - accelerator module
  96
• 7.2 Removing and installing accelerator module with accelerator position sender G79 / G185
  97
• 8 Fuel pump
  98
• 8.1 Checking fuel system pressurisation pump G6
  98
• 8.2 Removing and installing fuel pump control unit J538
  111
• 8.3 Checking suction-jet pump
  113
• 8.4 Removing and installing suction-jet pump
  113
• 9 Senders and sensors
  122
• 9.1 Removing and installing water separator sender G63
  122