Fuel supply system - Diesel engines

Chapter overview

• Technical data
  1
• 1 Safety instructions
  1
• 1.1 Safety precautions when working on fuel supply system
  1
• 1.3 Safety precautions when working on vehicles with a start/stop system
  2
• 2 Identification
  3
• 2.1 Engine number, engine data
  3
• 3 General notes
  4
• 4 Repair instructions
  5
• 4.1 Routing and securing lines
  5
• 4.2 General repair notes
  5
• Fuel supply system
  6
• 1 Procedure when filling with incorrect fuel
  6
• 2 Fuel tank
  13
• 2.1 Assembly overview - fuel tank
  13
• 2.2 Removing and installing fuel tank
  14
• 2.3 Emptying fuel tank
  19
• 3 Fuel delivery unit, fuel gauge sender
  26
• 3.1 Assembly overview - fuel delivery unit and fuel gauge sender
  26
• 3.2 Removing and installing fuel delivery unit, fuel gauge sender
  27
• 3.3 Removing and installing fuel gauge sender G
  31
• 4 Wiring
  33
• 4.1 Removing and installing fuel lines
  33
• 5 Plug-in connectors
  38
• 5.1 Separating plug-in connectors
  38
• 6 Fuel filter
  42
• 6.1 Assembly overview - fuel filter
  42
• 6.2 Removing and installing fuel filter
  46
• 6.3 Fuel hoses in the engine compartment
  49
• 6.4 Drain water from fuel filter
  50
• 7 Accelerator mechanism
  51
• 7.1 Assembly overview - accelerator module
  51
• 7.2 Removing and installing accelerator module with accelerator position sender G79 / G185
  51
• 8 Fuel pump
  54
• 8.1 Checking fuel system pressurisation pump G6
  54
• 9 Senders and sensors
  67
• 9.1 Removing and installing water separator sender G63
  67