A4 Mk3
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1 - | Air mass meter -G70- |
q | Removing and installing → Chapter |
2 - | Lambda probe -G39- with Lambda probe heater -Z19- |
q | Fitting location → Chapter |
q | Removing and installing → Chapter |
3 - | Exhaust gas temperature sender 3 -G495- |
q | Fitting location → Fig. |
q | Removing and installing → Rep. gr.26 |
4 - | Electrical connector for exhaust gas temperature sender 3 -G495- |
q | Fitting location → Fig. |
q | Removing and installing → Rep. gr.26 |
5 - | Connector for Lambda probe -G39- |
q | Fitting location → Chapter |
6 - | Exhaust gas pressure sensor 1 -G450- |
q | Fitting location → Fig. |
q | Adaption must be performed after renewing this component |
q | Removing and installing → Chapter |
7 - | Radiator outlet coolant temperature sender -G83- |
q | Fitting location → Fig. |
q | Removing and installing → Rep. gr.19 |
8 - | Fuel temperature sender -G81- |
q | Fitting location → Fig. |
9 - | Pressure retention valve |
q | Fitting location → Fig. |
q | The pressure retention valve maintains a residual pressure of approx. 10 bar in the return lines |
q | This residual pressure is required for the control function of the injectors |
q | The pressure retention valve may only be renewed together with the fuel return lines |
q | After replacement, engine must be run at idling speed for approx. 2 minutes to bleed fuel system |
q | Checking pressure retention valve → Chapter |
10 - | Coolant temperature sender -G62- |
q | Removing and installing → Rep. gr.19 |
11 - | Fuel pressure regulating valve -N276- |
q | Fitting location → Fig. |
q | Removing and installing → Chapter |
q | 80 Nm |
12 - | Variable intake manifold motor -V183- |
q | With variable intake manifold position sender -G513- |
q | Fitting location → Fig. |
13 - | Engine speed sender -G28- |
q | Fitting location → Fig. |
q | 4.5 Nm |
14 - | Intake manifold flap motor -V157- |
q | With throttle valve potentiometer -G69- |
q | Fitting location → Fig. |
q | Intake manifold - exploded view → Chapter |
15 - | Engine control unit -J623- |
q | Fitting location → Fig. |
q | Removing and installing → Chapter |
16 - | Charge pressure sender -G31- |
q | Combined with intake air temperature sender -G42- |
q | Fitting location → Fig. |
q | Removing and installing → Rep. gr.21 |
17 - | Pump for exhaust gas recirculation cooler -V400- |
q | Fitting location → Fig. |
18 - | Exhaust gas recirculation valve -N18- with exhaust gas recirculation potentiometer -G212- |
q | Fitting location → Fig. |
19 - | Fuel return line connection |
20 - | High-pressure pump with fuel metering valve -N290- |
q | Do not open fuel metering valve -N290- |
q | Removing and installing → Chapter |
21 - | Fuel supply line connection |
22 - | Glow plugs |
q | Glow plug 1 -Q10- |
q | Glow plug 2 -Q11- |
q | Glow plug 3 -Q12- |
q | Glow plug 4 -Q13- |
q | Fitting location → Fig. |
q | Removing and installing → Chapter |
23 - | Fuel pressure sender -G247- |
q | Fitting location → Fig. |
q | Removing and installing → Chapter |
q | 100 Nm |
24 - | Injectors |
q | Fitting location → Fig. |
q | Removing and installing → Chapter |
25 - | Hall sender -G40- |
q | Fitting location → Fig. |
q | Removing and installing → Chapter |
26 - | Fuel return lines |
q | The fuel return lines must not be dismantled; if necessary they must be renewed complete with pressure retention valve. |
q | After replacement, engine must be run at idling speed for approx. 2 minutes to bleed fuel system. Then check fuel return lines for leaks. |
27 - | Charge pressure control solenoid valve -N75- |
q | Fitting location → Fig. |
28 - | Exhaust gas recirculation cooler change-over valve -N345- |
q | Fitting location → Fig. |
29 - | Electrical connector for exhaust gas temperature sender 1 -G235- |
q | Fitting location → Fig. |
30 - | Position sender for charge pressure positioner -G581- |
q | Fitting location → Fig. |
31 - | Air filter bypass flap valve -N275- |
q | These components (bypass flap with air filter bypass flap valve -N275-) are not installed on certain equipment versions or on vehicles for certain export markets |
q | Air cleaner - exploded view → Chapter |
A - | Relay and fuse holder in electronics box in plenum chamber (left-side) |
q | Fitting location → Current flow diagrams, Electrical fault finding and Fitting locations |
B - | Low heat output relay -J359- and high heat output relay -J360- |
q | Fitting location → Current flow diagrams, Electrical fault finding and Fitting locations |
C - | Brake light switch -F- and brake pedal switch -F47- |
q | Fitting location → Fig. |
q | In footwell on brake pedal |
D - | Clutch position sender -G476- |
q | Fitting location → Fig. |
q | Only fitted on vehicles with manual gearbox |
E - | Accelerator position sender -G79- and accelerator position sender 2 -G185- |
q | Fitting location → Fig. |
q | Removing and installing → Rep. gr.20 |
F - | Supplementary fuel pump -V393- |
q | Fitting location → Fig. |
q | Removing and installing → Rep. gr.20 |
G - | Exhaust gas temperature sender 1 -G235- |
q | Fitting location on turbocharger → Fig. |
q | 45 Nm |
q | Removing and installing → Rep. gr.26 |
H - | Exhaust gas temperature sender 4 -G648- |
q | Fitting location → Fig. |
q | 45 Nm |
q | Removing and installing → Rep. gr.26 |
I - | Electrical connector for exhaust gas temperature sender 4 -G648- |
q | Fitting location → Fig. |
J - | Particulate filter |
q | Fitted on underbody |
q | Combined with catalytic converter |
q | Adaption must be performed after renewing this component |
q | Removing and installing → Rep. gr.26 |
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