Audi Workshop Service and Repair Manuals

Fitting locations - vehicles with engine codes BMN, BUY

Some components are located beneath the engine cover panel. For removal refer to → Fig..

1 -	Exhaust gas pressure sensor 1 -G450-

q	Fitting location → Fig.

q	Removing and installing → Chapter

2 -	Lambda probe -G39- with Lambda probe heater -Z19-

q	Fitting location → Fig.

q	Removing and installing → Chapter

3 -	Engine control unit

q	Removing and installing → Chapter

4 -	Temperature sender after particulate filter -G527-

q	Fitting location → Fig.

q	Removing and installing → Rep. Gr.26

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

q	Fitting location → Fig.

6 -	Temperature sender before particulate filter -G506-

q	Fitting location → Fig.

7 -	Unit injectors and glow plugs

q	Unit injector solenoid valve, No. 1 cyl. -N240-

q	Unit injector solenoid valve, No. 2 cyl. -N241-

q	Unit injector solenoid valve, No. 3 cyl. -N242-

q	Unit injector solenoid valve, No. 4 cyl. -N243-

q	Removing and installing unit injectors → Chapter

q	Glow plug 1 -Q10-

q	Glow plug 2 -Q11-

q	Glow plug 3 -Q12-

q	Glow plug 4 -Q13-

q	Removing and installing glow plugs → Chapter

8 -	Position sender for charge pressure positioner -G581-

9 -	Exhaust gas temperature sender 1 -G235-

q	Fitting location → Fig.

10 -	Solenoid valve for charge pressure control -N75-

q	Fitting location → Fig.

11 -	Electrical connectors on left side of bulkhead

q	Fitting location → Fig.

12 -	Exhaust emissions warning lamp -K83-

q	In instrument cluster

13 -	Accelerator position sender -G79- with accelerator position sender 2 -G185-

q	Fitting location → Fig.

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

q	Fitting location:

Vehicles up to approx. 11.2005 → Fig.

Vehicles from approx. 11.2005 onwards (gradual introduction) → Fig.

15 -	5-position relay carrier in dash panel on driver's side (bottom left)

q	With fuel pump relay -J17-

q	With terminal 15 voltage supply relay 2 -J681-

q	With terminal 50 voltage supply relay -J682-

q	For identification of socket position refer to → Current flow diagrams, Electrical fault finding and Fitting locations

16 -	Clutch position sender -G476-

q	Fitting location → Fig.

17 -	Relay and fuse holder in electronics box in engine compartment

q	With terminal 30 voltage supply relay -J317-

q	With terminal 15 voltage supply relay -J329-

q	For identification of socket position refer to → Current flow diagrams, Electrical fault finding and Fitting locations

18 -	Automatic glow period control unit -J179-

q	Fitting location → Fig.

19 -	Air mass meter -G70-

20 -	Coolant temperature sender -G62-

q	Fitting location → Fig.

q	If necessary release pressure in cooling system before removing

21 -	Tandem pump

q	Removing, installing and checking → Rep. Gr.20

22 -	Multi-pin connector

q	For unit injectors and glow plugs

q	Fitting location → Fig.

23 -	Engine speed sender -G28-

q	Fitting location → Fig.

q	Removing and installing → Chapter

24 -	Fuel temperature sender -G81-

q	Fitting location → Fig.

25 -	Intake manifold flap motor -V157-

q	Fitting location → Fig.

26 -	3-pin connector

q	For Hall sender -G40-

q	Fitting location → Fig.

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

q	Fitting location → Fig.

28 -	Radiator outlet coolant temperature sender -G83-

q	Fitting location → Fig.

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

q	Fitting location → Fig.

q	Removing and installing → Chapter

30 -	Intake manifold flap valve -N316-

q	Fitting location → Fig.

31 -	Hall sender -G40-

q	For camshaft position

q	Fitting location → Fig.

Removing engine cover panel –  Lift off engine cover panel (outside -1- and inside -2-) by pulling up evenly.

Fitting location of multi-pin connector for unit injectors and glow plugs t  To disconnect, pull release pin -arrow 1- and slacken knurled nut -arrow 2-.

Fitting location of accelerator position sender -G79- with accelerator position sender 2 -G185- t  To unplug the electrical connector -2- press the release tab and pull off the cable guide -1-. t  Removing and installing → Rep. Gr.20.   Note Diagram shows set-up on left-hand drive vehicles.

Fitting location of brake light switch -F- and brake pedal switch -F63- up to approx. 11.2005 t  On pedal bracket -arrow-. t  Removing and installing → Rep. Gr.46

Fitting location of brake light switch -F- and brake pedal switch -F63- from approx. 11.2005 onwards (gradual introduction) t  On brake master cylinder in engine compartment. t  Removing and installing → Rep. Gr.46 1 -  Electrical connector 2 -  Brake light switch -F-/brake pedal switch -F63-

Fitting location of clutch position sender -G476- t  On clutch master cylinder-arrow-. t  Removing and installing → Rep. Gr.30

Fitting location of automatic glow period control unit -J179- t  -Item 1- on relay carrier below electronics box in engine compartment. t  Removing and installing → Chapter

Fitting locations of components on bulkhead (left-side) 1 -  Solenoid valve for charge pressure control -N75- 2 -  Electrical connector (orange) for temperature sender after particulate filter -G527- 3 -  Electrical connector (brown) for temperature sender before particulate filter -G506- 4 -  Electrical connector (black) for Lambda probe -G39- 5 -  Electrical connector (black) for exhaust gas temperature sender 1 -G235-

Fitting locations of components on top of particulate filter 3 -  Lambda probe -G39- with Lambda probe heater -Z19-; removing and installing → Chapter 4 -  Pressure pipe going to exhaust gas pressure sensor 1 -G450- 5 -  Temperature sender before particulate filter -G506-; removing and installing → Rep. Gr.26   Note Disregard items marked -1- and -2-.

Fitting locations of components on underside of particulate filter 1 -  Temperature sender after particulate filter -G527-; removing and installing → Rep. Gr.26 2 -  Pressure pipe going to exhaust gas pressure sensor 1 -G450-

Fitting location of exhaust gas temperature sender 1 -G235- t  On turbocharger. t  Removing and installing → Rep. Gr.26

Fitting location of coolant temperature sender -G62- t  On engine (left). t  Removing and installing → Rep. Gr.19

Fitting location of fuel temperature sender -G81- t  At front of engine. t  Removing and installing → Rep. Gr.19

Fitting location of engine speed sender -G28- t  On flywheel side of engine. 1 -  Engine speed sender -G28- 2 -  Sender wheel

Fitting location of charge pressure sender -G31- with intake air temperature sender -G42- t  In air pipe (front) behind radiator.

Fitting location of intake manifold flap motor -V157- and exhaust gas recirculation valve -N18- with exhaust gas recirculation potentiometer -G212- t  At front on intake manifold. t  Removing and installing exhaust gas recirculation valve -N18- with exhaust gas recirculation potentiometer -G212--item 2- → Rep. Gr.26. t  Removing and installing intake manifold flap motor -V157--item 3- → Chapter.   Note Disregard -item 1-.

Fitting location of change-over valve for exhaust gas recirculation cooler -N345- t  On rear of cylinder head.

Fitting location of exhaust gas pressure sensor 1 -G450- t  On rear of cylinder head -arrow-. t  Removing and installing → Chapter   Note Shown from rear with engine removed for illustration purposes.

Fitting location of intake manifold flap valve -N316- t  At front right of intake manifold -arrow-.

Fitting location of 3-pin connector for Hall sender -G40- t  At front of engine below intake manifold -arrow-.

Fitting location of Hall sender -G40- t  At camshaft sprocket on right side of engine -arrow-