Audi Workshop Service and Repair Manuals

Overview of fitting locations Engine compartment (right-side)

1 -	Fuel pressure regulating valve -N276-

q	Fitting location → Fig.

2 -	High-pressure pump with fuel pressure regulating valve -N276-

q	Removing and installing → Chapter

3 -	Activated charcoal filter solenoid valve 1 -N80-

q	Fitting location → Fig.

4 -	Intake air temperature sender -G42- and intake manifold pressure sender -G71-

q	Fitting location → Fig.

5 -	Engine control unit -J623-

q	Fitting location → Fig. „„Engine control unit -J623-““

q	Removing and installing → Chapter „Renewing engine control unit -J623-“

6 -	Knock sensor 1 -G61-

q	Fitting location → Fig.

q	Removing and installing → Chapter „Removing and installing knock sensor 1 -G61-“

q

20 Nm

7 -	Engine speed sender -G28-

q	Fitting location → Fig.

q	Removing and installing → Chapter

8 -	Lambda probe -G39- and Lambda probe heater -Z19-

q	Fitting location → Fig.

q	Removing and installing → Chapter

9 -	Lambda probe after catalytic converter -G130- and Lambda probe heater 1 after catalytic converter -Z29-

q	Fitting location → Fig.

q	Removing and installing → Chapter

10 -	Camshaft control valve 1 -N205-

q	Fitting location → Fig.

q	Removing and installing, refer to engine - mechanics → Rep. gr.15

11 -	Ignition coils with output stages

q	Removing and installing → Chapter

q	Ignition coil 1 with output stage -N70-

q	Ignition coil 2 with output stage -N127-

q	Ignition coil 3 with output stage -N291-

q	Ignition coil 4 with output stage -N292-

q	Puller -T40039- is required for removing ignition coils from cylinder head.

Engine compartment (left-side) Components A to G are not shown in the overview.

1 -	Hall sender -G40- (camshaft position sensor)

q	Fitting location: beneath engine cover panel → Fig.

q	Removing and installing → Chapter

2 -	Throttle valve module -J338-, throttle valve drive for electric throttle -G186-

q	Throttle valve drive angle sender 1 for electric throttle -G187- and throttle valve drive angle sender 2 for electric throttle -G188-

q	After throttle valve module -J338- or engine control unit has been renewed, throttle valve must be re-adapted to engine control unit -J623-

3 -	Fuel pressure sender -G247-

q	Fitting location → Fig.

q	Removing and installing → Chapter

4 -	Charge pressure sender -G31- / intake air temperature sender 2 -G299-

q	Fitting location → Fig.

q	Removing and installing, refer to engine - mechanics → Rep. gr.21

5 -	Clutch position sender -G476-

q	Only fitted on vehicles with manual gearbox

q	Fitting location → Fig.

q	Removing and installing, see Power transmission, clutch → Rep. gr.30

6 -	Radiator outlet coolant temperature sender -G83-

q	Fitting location → Fig.

q	Removing and installing, refer to engine - mechanics → Rep. gr.19

7 -	Coolant temperature sender -G62-

q	Fitting location → Fig.

8 -	Electrical connectors for Lambda probes

q	Fitting locations → Fig.

9 -	Oil pressure switch -F1-

q	Removing, installing and checking; engine - mechanics → Rep. gr.17

10 -	Charge pressure control solenoid valve -N75-

q	Located directly on turbocharger → Fig.

11 -	Turbocharger air recirculation valve -N249-

q	Located directly on turbocharger → Fig.

A -

Injectors

q	Removing and installing → Chapter

q	Injector, cylinder 1 -N30-

q	Injector, cylinder 2 -N31-

q	Injector, cylinder 3 -N32-

q	Injector, cylinder 4 -N33-

B -	Brake light switch - F- and brake pedal switch -F63-

q	Fitting location → Fig.

q	For removing and installing refer to Brake system → Rep. gr.45

C -	Accelerator position sender -G79- and accelerator position sender 2 -G185-

q	Fitting location → Fig.

q	On accelerator pedal (both senders are accommodated in one housing)

q	If accelerator pedal module or engine control unit is renewed, kick-down function must be adapted on vehicles with automatic gearbox

q	Removing and installing; Fuel supply system, petrol engines → Rep. gr.20

D -	Fuel pump control unit -J538-

q	Fitting location → Fig.

E -	Radiator fan control unit -J293-

q	Fitting location → Fig.

q	Removing and installing, refer to engine - mechanics → Rep. gr.19

F -	Relay and fuse holder in electronics box

q	Relay and fuse assignment see → Current flow diagrams, Electrical fault finding and Fitting locations

G -	Coolant circulation pump -V50-

q	Fitting location → Fig.

Engine control unit -J623-

Accelerator position sender -G79- and accelerator position sender 2 -G185- 2 -  Electrical connector for accelerator pedal module

Clutch position sender -G476-

Fuel pump control unit -J538- 1 -  Connector for fuel pump control unit -J538- 2 -  Fuel pump control unit -J538- 3 -  Fuel system pressurisation pump -G6-

Brake light switch -F- and brake pedal switch -F63-

Fuel pressure sender -G247--1- l  Removing and installing → Chapter

Activated charcoal filter solenoid valve 1 -N80-

Intake air temperature sender -G42- with intake manifold pressure sender -G71--arrow-

Camshaft control valve 1 -N205--arrow-

Knock sensor 1 -G61-

Engine speed sender -G28--3-

Hall sender -G40-

Fuel pressure regulating valve -N276--arrow-

Coolant temperature sender -G62--1-

Radiator outlet coolant temperature sender -G83--2-

Charge pressure sender -G31- / intake air temperature sender 2 -G299--1-

Radiator fan control unit -J293- 1 -  Connector for radiator fan control unit -J293-   Note The radiator fan control unit -J293- is integrated into the radiator fan -V7-.

Oil pressure switch -F1--arrow-

Coolant circulation pump -V50-

Electrical connector for Lambda probes 2 -  Lambda probe -G39- and Lambda probe heater -Z19- 3 -  Lambda probe after catalytic converter -G130- and Lambda probe heater 1 after catalytic converter -Z29-

Lambda probe -G39- and Lambda probe heater -Z19--1-

Lambda probe after catalytic converter -G130- and Lambda probe 1 heater after catalytic converter -Z29--1-

Components on turbocharger 1 -  Removing and installing turbocharger → Rep. gr.21 1 -  Tighten charge pressure control solenoid valve -N75- to 10 Nm 2 -  Tighten turbocharger air recirculation valve -N249- to 11 Nm (note installation position, refer to next illustration)

Pay attention to installation position of turbocharger air recirculation valve -N249-