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 start/stop system
  1
• 1.3 Safety precautions when working on SCR system
  1
• 1.5 Safety precautions when working on exhaust system
  2
• 2 Identification
  4
• 2.1 Engine number/engine data
  4
• 3 General notes
  7
• 3.1 Rules for cleanliness when working on auxiliary heater and fuel system
  7
• 4 Repair instructions
  8
• 4.1 Routing and attachment of lines
  8
• 4.2 General repair notes
  8
• 4.3 Assessing quality of diesel fuel
  8
• Fuel supply system
  10
• 1 Procedure in event of misfuelling
  10
• 2 Fuel
  14
• 2.1 Assembly overview - fuel tank
  14
• 2.2 Emptying fuel tank
  21
• 2.3 Removing and installing fuel tank
  34
• 3 Fuel delivery unit, fuel gauge sender
  44
• 3.1 Assembly overview - fuel delivery unit/fuel gauge sender
  44
• 3.2 Removing and installing fuel delivery unit, fuel gauge sender
  48
• 3.3 Removing and installing fuel gauge sender G
  54
• 4 Plug-in connectors
  59
• 4.1 Separating plug-in connectors
  59
• 5 Fuel filter
  65
• 5.1 Assembly overview – fuel filter
  65
• 5.2 Removing and installing fuel filter
  67
• 6 Accelerator pedal
  76
• 6.1 Assembly overview - accelerator module
  76
• 6.2 Removing and installing accelerator pedal module GX2
  76
• 7 Fuel supply
  80
• 7.1 Assembly overview - supplementary fuel pump
  80
• 7.2 Checking fuel system pressurisation pump G6
  81
• 7.3 Removing and installing supplementary fuel pump V393
  104