Audi Workshop Service and Repair Manuals

Components A to G are not shown in the exploded view.

•     A -    Brake light switch -F and brake pedal switch -F47
• ◆ In footwell at pedal bracket next to brake pedal
•     B -    Diagnostic connector
• ◆ In driver's knee restraint
•     C -    Fuel pump relay -J17
• ◆ 6+6-socket relay carrier (left side footwell, relay position 5) =>Fig. 24-13
•     D -    Motronic current supply relay -J271
• ◆ 3-socket relay carrier (left side footwell, relay position 1) =>Fig. 24-14

•     E -    Motronic control unit -J220
• ◆ Fitting location =>Fig. 24-13
•     F -    NOx sender control unit -J583
• ◆ Fitting location =>Fig. 24-13
•     G -    Accelerator position sender -G79 and accelerator pedal position sender 2 -G185
• ◆ In footwell at accelerator pedal (both senders share same housing)

• Fuel pressure regulator
• ◆ Fitting location =>Fig. 24-10
• Fuel metering valve -N290
• ◆ Fitting location =>Fig. 24-10

• Intake manifold flap air flow control valve -N316
• ◆ Fitting location =>Fig. 24-10
• Intake manifold pressure sender
  -G71
• ◆ Fitting location =>Fig. 24-10
• Intake manifold flap potentiometer
  -G336
• ◆ Fitting location =>Fig. 24-10
• Engine speed sender -G28
• Vacuum actuator
• Air-mass meter -G70 with intake-air temperature sender -G42

• Activated charcoal filter system solenoid valve 1 -N80
• Throttle valve control unit -J338
• Exhaust-gas recirculation valve -N18 with exhaust-gas recirculation potentiometer -G212
• High-pressure fuel pump
• Coolant temperature sender -G62
• Fan control unit
• Hall sender -G40
• Lambda probe -G39, -Z19
• ◆ Fitting location =>Fig. 24-11

• Ignition coils with output stages
• Camshaft adjustment valve 1 -N205
• Exhaust-gas temperature sender 1 -G235
• ◆ Fitting location =>Fig. 24-11
• NOx sender -G295
• ◆ Fitting location =>Fig. 24-12
• Fuel-pressure sender -G247
• ◆ Fitting location =>Fig. 24-12
• Fuel-pressure regulating valve -N276
• ◆ Fitting location =>Fig. 24-12

→ Fig.1

1- Intake manifold flap air flow control valve -N316

2- Intake manifold flap potentiometer -G336

3- Intake manifold pressure sender -G71

→ Fig.2

1- Fuel metering valve -N290

2- Fuel pressure regulator

→ Fig.3

1- Lambda probe -G39, -Z19

2- Exhaust-gas temperature sender 1 -G235

→ Fig.4

1- Connector coupling for lambda probe

2- Connector coupling for exhaust-gas temperature sender

→ Fig.5

1- NOx sender -G295

2- Cable duct into passenger compartment

→ Fig.6    Lower part of intake manifold

1- Fuel-pressure sender -G247

2- Fuel-pressure regulating valve -N276

→ Fig.7

1- Motronic control unit -J220

2- From NOx sender -G295

3- To engine control unit

4- Control unit for NOx sender -G583

→ Fig.8    6+6-socket relay carrier (in left side footwell)

Relay position 5- Fuel pump relay -J17

→ Fig.9    3-socket relay carrier (in left side footwell)

Relay position 1- Motronic current supply relay -J271