Audi Workshop Service and Repair Manuals

Overview of fitting locations (vehicles with engine codes CDNB, CDNC, CAEB, CDZA, CAEA and CADA) Components A to I are not shown in the overview.

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

q	Fitting location → Fig.

q	Removing and installing → Chapter

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

q	Fitting location → Fig.

q	Removing and installing → Chapter

3 -	Fuel pressure regulating valve -N276-

q	Fitting location → Fig.

4 -	High-pressure pump

q	Removing and installing → Fig.

5 -	Vacuum unit for air flow control flaps (intake manifold flaps)

q	Fitting location → Fig.

6 -	Intake manifold flap valve -N316-

q	Fitting location → Fig.

7 -	Engine speed sender -G28-

q	Fitting location → Fig.

q

4.5 Nm

8 -	Activated charcoal filter solenoid valve 1 -N80-

9 -	6-pin connectors

q	For Lambda probe -G39- and Lambda probe heater -Z19- (black)

q	Lambda probe after catalytic converter -G130- and Lambda probe 1 heater after catalytic converter -Z29- (brown connector)

q	Fitting location → Fig.

10 -	Electrical connectors

q	For knock sensor 1 -G61-, intake manifold flap valve -N316-, fuel pressure sender -G247-, intake manifold flap potentiometer -G336-, coolant temperature sender -G62-, Hall sender -G40- and injectors N30...N33

q	Fitting location → Fig.

11 -	Engine control unit -J623-

q	Fitting location → Fig.

q	Removing and installing → Chapter

12 -	Charge pressure sender -G31-

q	Fitting location → Fig.

q	Removing and installing → Rep. gr.21

13 -	Throttle valve module -J338-, throttle valve drive (electric throttle operation) -G186-

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

q	Throttle valve module -J338- must always be re-adapted to engine control unit -J623- after removal and installation or if it has been renewed

q	Fitting location → Fig.

14 -	Intake air temperature sender -G42-

q	Fitting location → Fig.

15 -	Knock sensor 1 -G61-

q	To remove, first remove coolant pump with thermostat

q	Tightening torque: 20 Nm

q	Removing and installing → Chapter

16 -	Coolant temperature sender -G62-

q	Fitting location → Fig.

q	Removing and installing → Rep. gr.19

17 -	Fuel pressure sender -G247-

q	Fitting location → Fig.

q	Removing and installing → Chapter

18 -	Valve for oil pressure control -N428-

q	Fitting location → Fig.

q	Removing and installing → Rep. gr.17

19 -	Oil pressure switch for reduced oil pressure -F378-

q	Fitting location → Fig.

q	Removing and installing → Rep. gr.17

20 -	Oil pressure switch -F22-

q	Fitting location → Fig.

q	Removing and installing → Rep. gr.17

21 -	Intake manifold flap potentiometer -G336-

q	Fitting location → Fig.

22 -	Hall sender -G40-

q	Fitting location → Fig.

23 -	Camshaft control valve 1 -N205-

q	Fitting location → Fig.

q	Removing and installing → Rep. gr.15

24 -	Ignition coils with output stages

q	Fitting location → Fig.

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

q	Removing and installing → Chapter

25 -	Turbocharger air recirculation valve -N249-

q	Located directly on turbocharger → Fig.

q	Removing and installing → Rep. gr.21

26 -	Actuators for camshaft adjustment

q	Actuator 1 for camshaft adjustment -F366-

q	Actuator 2 for camshaft adjustment -F367-

q	Actuator 3 for camshaft adjustment -F368-

q	Actuator 4 for camshaft adjustment -F369-

q	Actuator 5 for camshaft adjustment -F370-

q	Actuator 6 for camshaft adjustment -F371-

q	Actuator 7 for camshaft adjustment -F372-

q	Actuator 8 for camshaft adjustment -F373-

q	Fitting location → Fig.

q	Removing and installing → Rep. gr.15

27 -	Charge pressure control solenoid valve -N75-

q	Located directly on turbocharger → Fig.

q	Removing and installing → Rep. gr.21

28 -	Air mass meter -G70-

q	Removing and installing → Chapter

A -	Diagnostic connector

q	In driver's knee restraint

B -	Fuel pump control unit -J538-

q	Fitting location → Fig.

q	Removing and installing → Rep. gr.20

C -	Brake light switch - F- and brake pedal switch -F47-

q	Fitting location → Fig.

q	In footwell on brake pedal

q	Removing and installing → Rep. gr.45

D -	Clutch position sender -G476-

q	Only fitted on vehicles with manual gearbox

q	Fitting location → Fig.

E -	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	Removing and installing → Rep. gr.20

F -	Radiator fan control unit -J293-

q	Incorporated in radiator fan

G -

Injectors

q	Injector, cylinder 1 -N30-

q	Injector, cylinder 2 -N31-

q	Injector, cylinder 3 -N32-

q	Injector, cylinder 4 -N33-

q	Removing and installing → Chapter

H -	Continued coolant circulation pump -V51-

q	Not installed in all vehicles (only in vehicles for very hot countries)

q	Fitting location → Fig.

q	Removing and installing → Rep. gr.19

I -	Left electrohydraulic engine mounting solenoid valve -N144-

q	Not installed in all vehicles (depends on gearbox type)

Engine control unit -J623- t  In left electronics box in engine compartment

Fuel pump control unit -J538--1- Removing and installing → Rep. gr.20

Accelerator position sender -G79- and accelerator position sender 2 -G185- 2 -  Electrical connector

Clutch position sender -G476--2- Integrated functions: clutch pedal switch for engine start -F194- and clutch pedal switch -F36- (manual gearbox only) 1 -  Brake light switch -F- and brake pedal switch -F47-

Continued coolant circulation pump -V51- 1 -  Electrical connector for continued coolant circulation pump -V51-

Oil pressure switch 1 -  Electrical connector for oil pressure switch -F22- 2 -  Oil pressure switch -F22- 3 -  Oil pressure switch for reduced oil pressure -F378- 4 -  Electrical connector for oil pressure switch for reduced oil pressure -F378-

Valve for oil pressure control -N428--3-

Ignition coils 1 -  Ignition coil 1 with output stage -N70- 2 -  Ignition coil 2 with output stage -N127- 3 -  Ignition coil 3 with output stage -N291- 4 -  Ignition coil 4 with output stage -N292- 5 -  Actuator 2 for camshaft adjustment -F367- (for cylinder No. 1) 6 -  Actuator 1 for camshaft adjustment -F366- (for cylinder No. 1) 7 -  Actuator 3 for camshaft adjustment -F368- (for cylinder No. 2) 8 -  Actuator 4 for camshaft adjustment -F369- (for cylinder No. 2) 9 -  Actuator 6 for camshaft adjustment -F371- (for cylinder No. 3) 10 -  Actuator 5 for camshaft adjustment -F370- (for cylinder No. 3) 11 -  Actuator 7 for camshaft adjustment -F372- (for cylinder No. 4) 12 -  Actuator 8 for camshaft adjustment -F373- (for cylinder No. 4)

Fuel pressure sender -G247--1-

Intake manifold flap valve -N316--2- 1 -  Vacuum unit for intake manifold flaps

Intake manifold flap potentiometer -G336--1-

Hall sender -G40--1-

Electrical connectors 1 -  From activated charcoal filter solenoid valve 1 -N80- 2 -  From knock sensor 1 -G61- 3 -  (14-pin) from intake manifold flap valve -N316-, fuel pressure sender -G247-, intake manifold flap potentiometer -G336-, coolant temperature sender -G62- and Hall sender -G40- 4 -  (8-pin) from injectors -N30-...-N33- 5 -  From throttle valve module -J338- 6 -  From intake air temperature sender -G42-

High-pressure pump 1 -  Fuel pressure regulating valve -N276- 2 -  High-pressure pump  -  -Arrows- denote securing bolts

Engine speed sender -G28--2-

Camshaft control valve 1 -N205--arrow-

Components 1 -  Intake air temperature sender -G42- 2 -  Throttle valve module -J338-

Coolant temperature sender -G62--1- Fitting location: below intake manifold in coolant pump

Charge pressure sender -G31--1- –  Removing and installing → Rep. gr.21

Component and electrical connectors 1 -  Activated charcoal filter solenoid valve 1 -N80- 2 -  Lambda probe after catalytic converter -G130- and Lambda probe heater 1 after catalytic converter -Z29- 3 -  Lambda probe -G39- and Lambda probe heater -Z19-

Lambda probes 1 -  Lambda probe after catalytic converter -G130- and Lambda probe heater 1 after catalytic converter -Z29- 2 -  Lambda probe -G39- and Lambda probe heater -Z19-

Components on turbocharger 1 -  Turbocharger 2 -  Vacuum unit for turbocharger; checking, adjusting, removing and installing → Rep. gr.21 3 -  Charge pressure control solenoid valve -N75- 4 -  Turbocharger air recirculation valve -N249- (note installation position, refer to next illustration) For removing and installing components on turbocharger, refer to → Rep. gr.21.

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