Audi Workshop Service and Repair Manuals

Components A to D are not illustrated in the exploded view.

•     A -    Accelerator position sender -G79 and accelerator pedal position sender 2 -G185
• ◆ Fitting location
  => Fig. 24-22
•     B -    Brake light switch -F and brake pedal switch -F47
• ◆ Fitting location
  => Fig. 24-23
•     C -    Clutch pedal switch -F36
• ◆ Fitting location
  => Fig. 24-23
•     D -    Engine control unit and relays in plenum chamber electronics box
• ◆ Fitting locations =>Fig. 24-24

• Activated charcoal filter solenoid valve -N80
• Air-mass meter -G70
• ◆ With intake-air temperature sender
  -G42
• Hall sender 3 -G300
• ◆ For exhaust camshaft
• ◆ Bank 1
• Hall sender -G40
• ◆ For inlet camshaft
• ◆ Bank 1
• Brake servo pressure sensor -G294
• ◆ For vehicles with automatic gearbox
• Hall sender 2 -G163
• ◆ For inlet camshaft
• ◆ Bank 2

• Hall sender 4 -G301
• ◆ For exhaust camshaft
• ◆ Bank 2
• Ignition coils with output stage, bank 2
• ◆ Cylinder 4 -N292
• ◆ Cylinder 5 -N323
• ◆ Cylinder 6 -N324
• Electronics box in plenum chamber
• ◆ Fitting locations =>Fig. 24-24
• ◆ Fitting location for Motronic current supply relay -J271
• ◆ Fitting location for secondary air pump relay -J299
• ◆ Fitting location for fuse S130 for secondary air pump
• ◆ Fitting location for relay for brake servo pump -J569

• Brake servo pump -V192
• ◆ For vehicles with automatic gearbox
• Camshaft adjustment valve 2, inlet
  -N208
  Exhaust camshaft control valve 2 -N319
• ◆ Bank 2
• Injectors, bank 2
• ◆ Cylinder 4 -N33
• ◆ Cylinder 5 -N83
• ◆ Cylinder 6 -N84
• ◆ Removing and installing
  
• Injectors, bank 1
• ◆ Cylinder 1 -N30
• ◆ Cylinder 2 -N31
• ◆ Cylinder 3 -N32
• ◆ Removing and installing
  => Page 24-65

• Camshaft adjustment valve 1, inlet
  -N205
  Exhaust camshaft control valve 1 -N318
• ◆ Bank 1
• Ignition coils with output stage, bank 1
• ◆ Cylinder 1 -N70
• ◆ Cylinder 2 -N127
• ◆ Cylinder 3 -N291
• Secondary air pump motor -V101

• Lambda probe -G39 and Lambda probe heater -Z19
• ◆ Bank 1, probe 1
• ◆ Continuous-action Lambda probe
• Holder for connectors
• ◆ For right side of vehicle
• ◆ Assignment
  => Fig. 24-24
• Lambda probe after catalyst -G130 and Lambda probe 1 heater after catalyst -Z29
• ◆ Bank 1, probe 2

• Coolant temperature sender -G62
• ◆ With coolant temperature sender -G2
• ◆ For engine control unit
• ◆ At coolant pipe behind cylinder head, bank 1
• ◆ Dissipate cooling system pressure if necessary prior to removal
• Throttle valve control part -J338
• ◆ With throttle valve drive -G186, throttle valve drive angle sender 1 -G187 and throttle valve drive angle sender 2 -G188
• Secondary air inlet valve -N112
• Engine speed sender -G28
• ◆ In gearbox housing above ring gear

• Holder for connectors
• ◆ For left side of vehicle
• ◆ Assignment =>Fig. 24-25
• Accelerator position sender -G79 and accelerator pedal position sender
  -G185
• ◆ Fitting location
  => Fig. 24-22
• Fuel pump relay -J17
• ◆ Fitting location =>Fig. 24-22
• Brake light switch -F and brake pedal switch -F47
• ◆ Fitting location
  => Fig. 24-23

• Clutch pedal switch -F36
• ◆ Fitting location
  => Fig. 24-23
• Dash panel insert
• ◆ With electric throttle control fault lamp -K132 ("EPC" warning lamp)
• ◆ With exhaust emissions warning lamp -K83
• Lambda probe 2 after catalyst -G131 and Lambda probe 2 heater after catalyst -Z30
• ◆ Bank 2, probe 2

• Lambda probe 2 -G108 and Lambda probe 2 heater -Z28
• ◆ Bank 2, probe 1
• ◆ Continuous-action Lambda probe
• Fuel pressure regulator
• ◆ Checking => Page 24-51
• Knock sensor 2 -G66
• ◆ Bank 2
• ◆ Beneath intake manifold
• Intake manifold changeover valve
  -N156

• Knock sensor 1 -G61
• ◆ Bank 1
• ◆ Beneath intake manifold
• Not installed
• ◆ For hot countries only
• Earth connection
• ◆ At engine support on right

→ Fig. 1    Fitting location of accelerator position sender -G79 and accelerator pedal position sender -G185

• ◆ Integrated in accelerator pedal module -arrow-

Note:

Accelerator position sender -G79 and accelerator pedal position sender 2 -G185 are integrated into accelerator pedal module and cannot be replaced separately.

Removing and installing accelerator pedal module

=> Fuel Supply System - Petrol Engines; Repair Group 20

→ Fig. 2    Fitting location of fuel-pump relay -J17

• ◆ On 9-position relay carrier on left of driver's footwell, position 1 -arrow-

→ Fig. 3    Fitting location of brake light switch -F, brake pedal switch -F47 and clutch pedal switch -F36

•     1 -    Clutch pedal switch -F36
•     2 -    Brake light switch -F, brake pedal switch -F47

Removing and installing switches

=> Brake System; Repair Group 46

=> Manual Gearbox; Repair Group 30

→ Fig. 4    Fitting location of engine control unit in plenum chamber electronics box

→ Fig. 5    Fitting locations in plenum chamber electronics box

•     1.1 -    Continued coolant circulation relay -J151 (hot countries only)
•     1.2 -    Not used
•     2 -    Motronic current supply relay -J271
•     3 -    Secondary air pump relay -J299
•     4 -    Relay for automatic gearbox
•     A -    Fuse S282 for engine electronics
•     B -    Secondary air pump fuse S130
•     C -    Not used

→ Fig. 6    Assignment of holder for connectors - right side of vehicle

•     1 -    Connector (4-pin AMM, BDV) (6-pin ASN), black
• For Lambda probe -G39 and Lambda probe heater -Z19 (bank 1, probe 1)
•     2 -    3-pin blue connector
• For knock sensor 1 -G61
•     3 -    4-pin green connector
• For Lambda probe after catalyst -G130 and Lambda probe 1 heater after catalyst -Z29 (bank 1, probe 2)
•     4 -    3-pin black connector
• For terminal 50

→ Fig. 7    Assignment of holder for connectors - left side of vehicle

•     1 -    4-pin brown connector
• For Lambda probe 2 after catalyst -G131 and Lambda probe 2 heater after catalyst -Z30 (bank 2, probe 2)
•     2 -    3-pin grey connector
• For engine speed sender -G28
•     3 -    3-pin blue connector
• For knock sensor 2 -G66
•     4 -    Connector (4-pin AMM, BDV) (6-pin ASN), black
• For Lambda probe 2 -G108 and Lambda probe 2 heater -Z28 (bank 2, probe 1)

Note:

→ To gain access to connectors, remove cover on left of engine compartment, disconnect wire to coolant shortage indicator switch at bottom of expansion tank, screw out bolt -arrow- of coolant expansion tank and lay aside. Leave coolant hoses -1...3- connected.