Audi Workshop Service and Repair Manuals

Overview of fitting locations - engines with code letters BHZ, BZC, CDLA and CDLC Components A to K are not shown in the overview.

1 -	Solenoid valve for charge pressure control -N75-

q	Located directly on turbocharger → Fig.

2 -	Electrical connector for air mass meter -G70-

q	Air mass meter -G70- in air cleaner (top section) → Fig.

q	Removing and installing air mass meter -G70- → Chapter

3 -	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.

4 -	Lambda probe -G39- and Lambda probe heater -Z19-

q	Fitting location → Fig.

q	Removing and installing → Chapter

5 -	Engine control unit -J623-

q	Removing and installing → Chapter

6 -	Fuel pressure sender for low pressure -G410-

q

15 Nm

7 -	Fuel pressure regulating valve -N276-

8 -	Inlet camshaft control valve 1 -N205-

q	Removing and installing → Rep. Gr.15

9 -	Single-plunger high-pressure pump

q	Removing and installing → Chapter

10 -	6-pin connector

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

11 -	Coolant temperature sender -G62-

q	Fitting location → Fig.

12 -	Components

q	Engine speed sender -G28-

q	Checking oil pressure switch -F1- → Rep. Gr.17

q	3-pin connector for knock sensor 1 -G61-

q	3-pin connector for knock sensor 2 -G66-

q	Fitting location → Fig.

13 -	Intake manifold flap motor -V157- with intake manifold flap potentiometer -G336-

q	After the fuel rail has been removed or renewed, intake manifold flap potentiometer -G336- must be adapted to the engine control unit -J623-, see vehicle diagnostic and service information system -VAS 5052-, “Guided Functions”

q	Removing and installing → Chapter

14 -	Activated charcoal filter solenoid valve 1 -N80-

15 -	Charge air pressure sender -G31-

q	Fitting location → Fig.

16 -	Turbocharger air recirculation valve -N249-

q	Fitting location → Fig.

17 -

Connector

q	For Hall sender -G40- and fuel pressure sender -G247-

q	Fitting location → Fig.

18 -	8-pin connector for injectors

q	Fitting location → Fig.

19 -	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 the throttle valve module -J338- has been renewed, it must be adapted to the engine control unit -J623-, see vehicle diagnostic and service information system -VAS 5052-“Guided Functions”

20 -	Intake air temperature sender -G42-

q

11 Nm

21 -	Radiator outlet coolant temperature sender -G83-

q	Fitting location → Fig.

22 -	Fuel pressure sender -G247-

q

22 Nm

q	Fitting location → Fig.

q	Removing and installing → Chapter

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

q	Electrical connector → Fig.

A -	Diagnostic connector

q	In driver's knee restraint

B -	Knock sensor 1 -G61-

q	For cylinders 1 and 2

q

20 Nm

q	Fitting location → Fig.

q	Removing and installing → Chapter

C -	Knock sensor 2 -G66-

q	For cylinders 3 and 4

q

20 Nm

q	Fitting location → Fig.

q	Removing and installing → Chapter

D -	Fuel pump control unit -J538-

q	Fitting location → Fig.

q	Adaption must be performed after renewing fuel pump control unit -J538-; refer to → Rep. Gr.20.

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

q	Fitting location → Fig.

q	Removing and installing → Chapter

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

q	Fitting location → Fig.

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

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

q

→ Fig.

H -	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

I -	Relay and fuse holder in electronics box

q	Assignment, refer to → Current flow diagrams, Electrical fault finding and Fitting locations

J -	Radiator fan control unit -J293-

q	Fitted on left-side radiator fan (in direction of travel)

q	Fitting location → Fig.

K -

Injectors

q	In fuel rail

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-

The fuel injectors are high-pressure injectors. They inject fuel at high pressure (maximum approx. 120 bar) directly into the cylinder.

Air mass meter -G70--1-

Coolant temperature sender -G62--1-

Fuel pressure sender -G247--1- l  Make sure that connecting piece is tightened to specified torque “30 Nm” before installing fuel pressure sender -G247-

Hall sender -G40--1-

Fuel pump control unit -J538--1- l  Adaption must be performed after renewing fuel pump control unit -J538-. Basic setting, measured value block 103, refer to → Rep. Gr.20

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

Lambda probe -G39--arrow-

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

Electrical connector Lambda probe after catalytic converter -G130- and Lambda probe 1 heater after catalytic converter -Z29--arrow- on vehicle underbody (right-side)

Radiator outlet coolant temperature sender -G83--arrow-“engines with code letters AXX, BPY and BWA only”

Radiator outlet coolant temperature sender -G83--arrow-“engines with code letters BHZ, BZC, CDLA and CDLC”

Connector 4 -  Clutch position sender -G476-

Pedal bracket Brake light switch -F- and brake pedal switch -F63--arrow-

Fitting location of accelerator pedal position sender -G79- and accelerator pedal position sender 2 -G185- (in driver's footwell)

Electrical connectors 1 -  3-pin connector (green) for knock sensor 1 -G61- 2 -  3-pin connector (brown) for knock sensor 2 -G66- 3 -  Oil pressure switch -F1- 4 -  Engine speed sender -G28- 5 -  3-pin electrical connector (grey) for engine speed sender -G28-

Fitting locations of components below intake manifold 1 -  Knock sensor 1 -G61- 2 -  Knock sensor 2 -G66- 3 -  Oil pressure sender -G10- 4 -  3-pin connector (brown) for knock sensor 2 -G66- 5 -  3-pin electrical connector (grey) for engine speed sender -G28- 6 -  Electrical connector for Hall sender -G40- and fuel pressure sender -G247- 7 -  8-pin connector for injectors

Charge air pressure sender -G31--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-.

Components on turbocharger “engines with code letters AXX, BPY and BWA” 1 -  Removing and installing turbocharger → Rep. Gr.21 2 -  Tighten charge pressure control solenoid valve -N75- to 3 Nm 3 -  Tighten turbocharger air recirculation valve -N249- to 7 Nm (note installation position) → Fig.

Note installation position of turbocharger air recirculation valve -N249-“engines with code letters AXX, BPY and BWA”

Component on turbocharger “engines with code letters BHZ, BZC, CDLA and CDLC” 1 -  Removing and installing turbocharger → Rep. Gr.21 2 -  Tighten charge pressure control solenoid valve -N75- to 3 Nm

Turbocharger air recirculation valve -N249--1-“engines with code letters BHZ, BZC, CDLA and CDLC” 1 -  Tighten turbocharger air recirculation valve -N249- to 7 Nm (note installation position) → Fig.

Note installation position of turbocharger air recirculation valve -N249-“engines with code letters BHZ, BZC, CDLA and CDLC” The marks -arrows- must align.