Audi Workshop Service and Repair Manuals

Components A to H are not shown in the following exploded views.

•     A -    Brake light switch (F) and brake pedal switch (F47)
• ◆ in footwell on pedal bracket near brake pedal
•     B -    Diagnosis plug
• ◆ in rear ashtray on central console
•     C -    Fuel pump relay
• ◆ At relay position 4 of the central electronics beneath dash panel
•     D -    Clutch pedal switch (F36)
• ◆ in footwell on pedal bracket near brake pedal

•     E -    Sender for accelerator position (G79) and sender 2 for accelerator position (G185)
• ◆ in footwell on accelerator pedal (both senders are accommodated in one housing)
•     F -    "EPC" warning lamp
• ◆ in dash panel insert (significance of lamp
  =>Page 24-144.
•     G -    Bank 1, lambda probe 2 -G130 with lambda probe heating -Z29
• ◆ This lambda probe is accessible from below after raising vehicle.
•     H -    Bank 2, lambda probe 2 -G131 with lambda probe heating -Z30
• ◆ This lambda probe is accessible from below after raising vehicle.

• Connector for bank 1, lambda probe 2 -G130 and lambda probe heating -Z29
• ◆ 4-pin/green
• Connector for bank 2, lambda probe 2 -G131 and lambda probe heating -Z30
• ◆ 4-pin/brown
• Connector for bank 1, lambda probe 1 -G39 and lambda probe heating -Z19
• ◆ 4-pin/black

• 3-pin connector
• ◆ For knock sensor 1 (G61)
• Coolant temperature sender (G62)
• ◆ On coolant pipe behind cylinder head, bank 1
• Solenoid valve for boost pressure control (N75)
• Activated charcoal filter solenoid valve 1 (N80)

• Exhaust gas temperature sender 1 (G235) and exhaust gas temperature sender 2 (G236)
• ◆ Both senders are arranged one after the other; see also Page 24-15.
• Intake air change-over valve -N335
• Secondary air pump motor -V101
• Checking secondary air inlet valve
  -N112

• Air recirculation valve for turbocharger (N249)
• Fuel pressure regulator
• Hall sender (G40)
• ◆ Cylinder bank 2
• Secondary air pump relay (J299)
• Engine control unit (J220)
• 3-pin connector
• ◆ For engine speed sender (G28)
• ◆ Grey
• 3-pin connector
• ◆ For knock sensor 2 (G66)
• Connector for bank 2, lambda probe 1 -G108 and lambda probe heating -Z28
• ◆ 4-pin/black

• Valve 2 for camshaft adjustment (N208)
• Throttle valve control unit (J338)
• ◆ With throttle valve drive (G186), angle sender for throttle valve drive (G187) and angle sender 2 for throttle valve drive (G188)
• Boost pressure sender -G31
• Hall sender (G163)
• ◆ Cylinder bank 1
• Final power stage 2 (N192)
• ◆ For ignition coils, cylinder bank 2
• Final power stage (N122)
• ◆ For ignition coils, cylinder bank 1

• Valve 1 for camshaft adjustment (N205)
• Bank 1, lambda probe 1 -G39 with lambda probe heating
  -Z19
• Knock sensor 1 (G61)
• Knock sensor 2 (G66)
• Engine speed sender (G28)
• ◆ In gearbox casing above sender disc
• Bank 2, lambda probe 1 -G108 with lambda probe heating
  -Z28

• Ignition coils, cylinder bank 2
• ◆ Cylinder 4 -N163
• ◆ Cylinder 5 -N164
• ◆ Cylinder 6 -N189
• Injectors
• ◆ Cylinder bank 2
  Cylinder 4 (N33)
  Cylinder 5 (N83)
  Cylinder 6 (N84)
• Intake air temperature sender (G42)
• ◆ Under the intake manifold at the front, near the throttle control unit
• 2-pin connector
• ◆ For intake air temperature sender (measurements to be carried out at this connector)

• Injectors
• ◆ Cylinder bank 1
  Cylinder 1 (N30)
  Cylinder 2 (N31)
  Cylinder 3 (N32)
• Ignition coils, cylinder bank 1
• ◆ Cylinder 1 -N
• ◆ Cylinder 2 -N128
• ◆ Cylinder 3 -N158
• Air mass meter (G70)

Fitting location of exhaust gas temperature sender

→ Fig.1    Fitting location of exhaust gas temperature sender

-1--= Exhaust gas temperature sender -G235

-2- = Exhaust gas temperature sender -G236