Fuel supply system, petrol engines

Chapter overview

• Technical data
  1
• 1 Safety information
  1
• 1.1 Safety regulations for working on fuel supply
  1
• 1.3 Safety measures when working on vehicles with a start/stop system
  2
• 2 Identification
  3
• 2.1 Engine number/engine data
  3
• 3 General information
  4
• 4 Repair instructions
  5
• 4.1 Routing and attachment of lines
  5
• 4.2 General repair instructions
  5
• Fuel supply system
  6
• 1 Fuel
  6
• 1.1 Assembly overview - fuel tank
  6
• 1.2 Removing and installing fuel tank
  14
• 1.3 Emptying fuel tank
  46
• 2 Fuel delivery unit, fuel gauge sender
  66
• 2.1 Assembly overview - fuel delivery unit/fuel gauge sender
  66
• 2.2 Removing and installing fuel delivery unit, fuel gauge sender
  70
• 2.3 Removing and installing fuel gauge sender G
  76
• 3 Lines
  78
• 3.1 Removing and installing fuel lines
  78
• 4 Plug-in connectors
  83
• 4.1 Separating plug-in connectors
  83
• 5 Fuel filter
  89
• 5.1 Assembly overview - fuel filter
  89
• 5.2 Removing and installing fuel filter
  90
• 6 Activated charcoal filter system
  92
• 6.1 Connection diagram - activated charcoal filter system
  92
• 6.2 Assembly overview – activated charcoal filter system
  95
• 6.3 Removing and installing activated charcoal filter
  102
• 6.4 Removing and installing fuel system diagnosis pump
  108
• 6.5 Removing and installing air filter for activated charcoal filter
  111
• 6.7 Checking fuel tank breather
  114
• 6.8 Checking fuel system for leaks, vehicles with fuel tank leak diagnosis
  120
• 7 Accelerator pedal
  132
• 7.1 Assembly overview - accelerator module
  132
• 8 Fuel pump
  134
• 8.1 Checking fuel system pressurisation pump G6
  134
• 8.2 Removing and installing fuel pump control unit J538
  182