A3 Mk2
| Fitting locations - vehicles with engine codes AZV, BKD |
Note| Some components are located beneath the engine cover panel. For removal refer to version 1 → Fig. and version 2 → Fig.. |

| 1 - | 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 |
| 2 - | Engine control unit |
| q | Removing and installing → Chapter |
| 3 - | Changeover flap for exhaust gas recirculation |
| 4 - | Multi-pin connector |
| q | For unit injectors and glow plugs |
| q | Fitting location → Fig. |
| 5 - | Solenoid valve block |
| q | With exhaust gas recirculation valve -N18- |
| q | With exhaust gas recirculation cooler change-over valve -N345- |
| q | Fitting location → Fig. |
| 6 - | Exhaust emissions warning lamp -K83- |
| q | In instrument cluster |
| 7 - | Accelerator position sender -G79- with accelerator position sender 2 -G185- |
| q | Fitting location → Fig. |
| q | Removing and installing → Rep. Gr.20 |
| 8 - | 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 → Fig. (gradual introduction) |
| 9 - | 5-position relay carrier in dash panel on driver's side (bottom left) |
| q | With fuel pump relay -J17- |
| q | For identification of socket position refer to → Current flow diagrams, Electrical fault finding and Fitting locations |
| 10 - | Clutch position sender -G476- |
| q | Fitting location → Fig. |
| 11 - | Automatic glow period control unit -J179- |
| q | Fitting location → Fig. |
| 12 - | 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 |
| 13 - | Air mass meter -G70- |
| 14 - | Coolant temperature sender -G62- |
| q | Fitting location → Fig. |
| q | If necessary release pressure in cooling system before removing |
| 15 - | Tandem pump |
| q | Removing, installing and checking → Rep. Gr.20 |
| 16 - | Fuel temperature sender -G81- |
| q | Fitting location → Fig. |
| 17 - | Engine speed sender -G28- |
| q | Fitting location → Fig. |
| 18 - | Charge air pressure sender -G31- with intake air temperature sender -G42- |
| q | Fitting location → Fig. |
| q | Removing and installing → Chapter |
| 19 - | Intake manifold flap motor -V157- |
| q | Fitting location → Fig. |
| 20 - | Mechanical exhaust gas recirculation valve |
| 21 - | Radiator outlet coolant temperature sender -G83- |
| q | Fitting location → Fig. |
| 22 - | 3-pin connector |
| q | For Hall sender -G40- |
| q | Fitting location → Fig. |
| 23 - | Hall sender -G40- |
| q | For camshaft position |
| q | Fitting location → Fig. |
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