Audi Workshop Service and Repair Manuals

Overview of fitting locations Components A to H are not shown on the exploded view.

1 -	Pressure differential sender -G505-

q	Fitting location → Fig.

q	Adaption must be performed after renewing this component

q	Removing and installing → Chapter

2 -	Hall sender -G40-

q	Fitting location → Fig.

q	Removing and installing → Chapter

q

10 Nm

3 -	Exhaust gas temperature sender 3 -G495-

q	Fitting location → Fig.

4 -	Lambda probe -G39- with Lambda probe heater -Z19-

q	Fitting location → Fig.

q	Removing and installing → Chapter

q

50 Nm

5 -	Engine control unit -J623-

q	Fitting location → Fig.

q	Removing and installing → Chapter

6 -

Injectors

q	Fitting location → Fig.

q	Removing and installing → Chapter

7 -	Position sender for charge pressure positioner -G581-

q	Fitting location → Fig.

8 -	Fuel pressure regulating valve -N276-

q	Fitting location → Fig.

q	Removing and installing → Chapter

q

80 Nm

9 -	Charge pressure control solenoid valve -N75-

q	Fitting location → Fig.

q	Electrical connector for exhaust gas temperature sender 3 -G495-

10 -	Electrical connector

q	For exhaust gas temperature sender 4 -G648-

q	For exhaust gas temperature sender 1 -G235-

q	For Lambda probe -G39-

q	Fitting location → Fig.

11 -	Air mass meter -G70-

q	Removing and installing → Chapter

12 -	Coolant temperature sender -G62-

q	Fitting location → Fig.

q	Removing and installing → Rep. gr.19

13 -	Engine speed sender -G28-

q	Fitting location → Fig.

q

4.5 Nm

14 -	Intake manifold flap motor -V157-

q	With intake manifold flap potentiometer -G336-

q	Fitting location → Fig.

15 -	Exhaust gas recirculation cooler change-over valve -N345-

q	Fitting location → Fig.

16 -	Pump for exhaust gas recirculation cooler -V400-

q	Fitting location → Fig.

17 -	Throttle valve module -J338-

q	With throttle valve potentiometer -G69-

q	Fitting location → Fig.

q	Intake manifold with attached components - exploded view → Chapter

q	Removing and installing → Chapter

18 -	Charge pressure sender -G31-

q	Combined with intake air temperature sender -G42-

q	Fitting location → Fig.

q	Removing and installing → Rep. gr.21

19 -	Glow plugs

q	Fitting location → Fig.

q	Glow plug 1 -Q10-

q	Glow plug 2 -Q11-

q	Glow plug 3 -Q12-

q	Glow plug 4 -Q13-

q	Removing and installing → Chapter

20 -	Fuel supply line connection from fuel filter

q	Fitting location → Fig.

21 -	Fuel return line connection to fuel filter

q	Fitting location → Fig.

22 -	High-pressure pump with fuel metering valve -N290-

q	Fitting location → Fig.

q	Do not open fuel metering valve -N290-

q	After renewing, first fuel filling MUST be performed (it is important not to allow pump to run while it is still empty) → Chapter

q	Removing and installing → Chapter

23 -	Fuel supply line connection (high-pressure pipe) to fuel rail

q	Fitting location → Fig.

24 -	Fuel temperature sender -G81- in fuel supply line

q	Fitting location → Fig.

25 -	Radiator outlet coolant temperature sender -G83-

q	Fitting location → Fig.

q	Removing and installing → Rep. gr.19

26 -	Fuel pressure sender -G247-

q	Fitting location → Fig.

q	Removing and installing → Chapter

q

100 Nm

27 -	Fuel filter

q	Fuel filter - exploded view → Rep. gr.20

q	Renewing fuel filter → Rep. gr.20

A -	Low heat output relay -J359- and high heat output relay -J360-

q	Fitting location → Current flow diagrams, Electrical fault finding and Fitting locations

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

q	Fitting location → Fig.

q	In footwell on brake pedal

C -	Clutch position sender -G476-

q	Fitting location → Fig.

q	Only fitted on vehicles with manual gearbox

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

q	Fitting location → Fig.

q	Removing and installing → Rep. gr.20

E -	Exhaust gas recirculation valve -N18- with exhaust gas recirculation potentiometer -G212-

q	Fitting location → Fig.

F -	Exhaust gas temperature sender 1 -G235-

q	Fitting location → Fig.

q	Lambda probes and exhaust gas temperature sensors - exploded view → Chapter

q	Removing and installing → Rep. gr.26

G -	Exhaust gas temperature sender 4 -G648-

q	Fitting location → Fig.

q	Lambda probes and exhaust gas temperature sensors - exploded view → Chapter

q	Removing and installing → Rep. gr.26

H -	Particulate filter

q	Fitted on underbody

q	Combined with a catalytic converter

q	Adaption must be performed after renewing this component

q	Removing and installing → Rep. gr.26

After renewing exhaust gas pressure sensor 1 -G450- and/or particulate filter, adaption must be performed in order to reset learnt values. The adaption procedure is described in the Guided Fault Finding or Guided Functions; use a vehicle diagnostic tester.

Fitting location of engine control unit -J623- Removing and installing → Chapter

Accelerator position sender -G79- and accelerator position sender 2 -G185- Removing and installing → Rep. gr.20   Note The accelerator position sender -G79- and accelerator position sender 2 -G185- are integrated in the accelerator pedal module and cannot be renewed individually.

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

Clutch position sender -G476-

Fuel system pressurisation pump -G6-

Fitting locations 1 -  Fuel pressure sender -G247- 2 -  Glow plug 1 -Q10- 3 -  Glow plug 2 -Q11- 4 -  Glow plug 3 -Q12- 5 -  Glow plug 4 -Q13- 6 -  Fuel pressure regulating valve -N276- 7 -  Exhaust gas recirculation cooler change-over valve -N345- 8 -  Throttle valve module -J338- 9 -  Fuel supply line connection from fuel filter 10 -  Fuel return line connection to fuel filter 11 -  Fuel metering valve -N290- 12 -  Fuel supply line connection (high-pressure pipe) to fuel rail 13 -  Fuel temperature sender -G81-

Pump for exhaust gas recirculation cooler -V400-

Charge pressure sender -G31- with intake air temperature sender -G42--1-

Hall sender -G40-

Fitting locations 1 -  Pressure differential sender -G505- 2 -  Fuel pressure sender -G247-

Radiator outlet coolant temperature sender -G83-

Engine speed sender -G28--1-

Components at front of engine 1 -  Electrical connector for Hall sender -G40- 2 -  Exhaust gas recirculation cooler change-over valve -N345- 3 -  Intake manifold flap motor -V157-

Components on engine 1 -  Pressure differential sender -G505- 2 -  Exhaust gas temperature sender 3 -G495- 3 -  Lambda probe -G39- 4 -  Position sender for charge pressure positioner -G581- 5 -  Injectors (N30 to N33) 6 -  Glow plugs (Q10 to Q13) 7 -  Fuel pressure sender -G247-

Fitting locations and connectors 1 -  Electrical connector for charge pressure control solenoid valve -N75- 2 -  Electrical connector for exhaust gas temperature sender 4 -G648- 3 -  Electrical connector for exhaust gas temperature sender 1 -G235- 4 -  Electrical connector for Lambda probe -G39- 5 -  Electrical connector for exhaust gas temperature sender 3 -G495-

Coolant temperature sender -G62--1-

Components at rear of engine 1 -  Lambda probe -G39- 2 -  Exhaust gas temperature sender 1 -G235- in turbocharger 3 -  Exhaust gas temperature sender 4 -G648- 4 -  Vacuum unit for exhaust gas recirculation cooling system 5 -  Exhaust gas recirculation valve -N18- with exhaust gas recirculation potentiometer -G212- 6 -  Electrical connector for exhaust gas recirculation valve -N18- with exhaust gas recirculation potentiometer -G212-