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Audi A4 Workshop Service and Repair Manuals

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Dismantling and assembling air cleaner > < Installation locations overview

Servicing Motronic Fuel Injection and Ignition System Components

Motronic fuel injection and ignition system (6 cyl.)
Servicing Motronic injection system
Removing and installing injection system components
 
N24-0593
  • Air cleaner
    • ◆ Dismantling and assembling
  • 20 Nm
  • Air mass meter -G70
  • 4-pin connector
    • ◆ Blue
    • ◆ For coolant temperature sender -G62
  • Coolant temperature sender -G62
    • ◆ For engine control unit
    • ◆ With coolant temperature gauge sender -G2
    • ◆ If necessary, release cooling system pressure before removal
 
N24-0593
  • O-ring
    • ◆ Replace if damaged
  • Return pipe
    • ◆ Secure with spring clips
    • ◆ Ensure tight fit
  • Supply pipe
  • 10 Nm
  • Securing clip
    • ◆ Ensure tight fit
  • Connecting hose
  • Engine control unit -J220
    • ◆ Location: In E-box in plenum chamber on left
 
N24-0593
  • Fastener
  • Connector, 40-pin
    • ◆ Switch off ignition before pulling off or attaching connector
    • ◆ Release to pull off
  • Connector, 81-pin
    • ◆ Switch off ignition before pulling off or attaching connector
    • ◆ Release to pull off
  • Air intake elbow
  • 2-pin connector
    • ◆ For intake air temperature sender -G42
  • 10 Nm
 
N24-0593
  • 2-pin connector
    • ◆ Blue
    • ◆ For intake manifold changeover valve -N156
  • To crankcase breather valve
  • Seal
  • 4-pin connector
    • ◆ Black
    • ◆ For Lambda probe and Lambda probe heating
  • 2-pin connector
    • ◆ Black
    • ◆ For injectors -N30...-N33
      -N83, -N84
 
N24-0593
  • Lambda probe 2 -G108 - 55 Nm
    • ◆ Cylinder bank 2
  • 10 Nm
  • Engine speed sender
    -G28
    • ◆ In gear case above starter ring gear
  • O-ring
  • Spacer
  • 3-pin connector
    • ◆ Grey
    • ◆ For engine speed sender
  • Vacuum reservoir
    • ◆ For intake manifold changeover at full throttle
 
N24-0593
  • Seal
  • Intake manifold
    • ◆ Removing and installing intake manifold changeover system components
      => Page 24-18.
  • Fuel manifold with injectors
    • ◆ Dismantling and assembling => Page 24-42.
  • Lambda probe 1 -G39 - 55 Nm
    • ◆ Cylinder bank 1
    • ◆ Probe heating is supplied with power via fuel pump relay -J17

Dismantling and assembling air cleaner > < Installation locations overview