A5
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1 - | Hall sender -G40- |
q | Fitting location → Fig. |
2 - | Pressure differential sender -G505- |
q | Fitting location → Fig. |
q | Adaption must be performed after renewing this component |
q | Removing and installing → Chapter |
3 - | Fuel pressure regulating valve -N276- |
q | Fitting location → Fig. |
q | After renewing high-pressure pump or fuel pressure regulating valve -N276-, learnt values must be re-adapted; see „Guided Functions“ in vehicle diagnostic tester |
q | Removing and installing → Chapter |
4 - | Electrical connector |
For exhaust gas temperature sender 4 -G648- |
5 - | Coolant temperature sender -G62- |
q | Removing and installing → Rep. gr.19 |
6 - | Electrical connector for exhaust gas temperature sender 1 -G235- |
q | Fitting location → Fig. |
7 - | Control unit for turbocharger 1 -J724- |
q | Fitting location → Fig. |
8 - | Electrical connector for exhaust gas recirculation temperature sensor -G98- |
q | Fitting location → Fig. |
9 - | Exhaust gas temperature sender 3 -G495- |
q | Fitting location → Fig. |
10 - | Turbocharger |
q | Removing and installing → Rep. gr.26 |
11 - | Intake manifold flap motor -V157- |
q | Fitting location → Fig. |
q | Cylinder bank 1 |
q | Intake manifold - exploded view → Chapter |
12 - | NOx sender -G295- |
q | Fitting location → Fig. |
13 - | Lambda probe -G39- |
q | Fitting location → Fig. |
14 - | Electrical connector for exhaust gas temperature sender 3 -G495- |
15 - | Intake manifold flap 2 motor -V275- |
16 - | Exhaust gas recirculation temperature sensor -G98- |
q | Fitting location → Fig. |
q | Removing and installing → Rep. gr.26 |
17 - | Exhaust gas recirculation cooler change-over valve -N345- |
q | Fitting location → Fig. |
18 - | Exhaust gas recirculation control motor -V338- |
q | Fitting location → Fig. |
19 - | Fuel temperature sender -G81- |
q | Fitting location → Fig. |
20 - | Pressure retention valve |
q | Fitting location → Fig. |
q | In return lines from cylinder banks 1 and 2 |
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 piezo 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 |
21 - | High-pressure fuel pump |
q | With fuel metering valve -N290- |
q | After renewing high-pressure pump, first fuel filling operation MUST be performed (it is important not to allow pump to run while it is still empty) → Chapter |
q | After renewing high-pressure pump or fuel pressure regulating valve -N276-, learnt values must be re-adapted; see „Guided Functions“ in vehicle diagnostic tester |
q | High-pressure pump - exploded view → Chapter |
q | Removing and installing → Chapter |
22 - | Fuel metering valve -N290- |
23 - | Oil pressure switch for reduced oil pressure -F378- |
q | Fitting location → Fig. |
q | Removing, installing and testing → Rep. gr.17 |
24 - | Pump for exhaust gas recirculation cooler -V400- |
q | Fitting location → Fig. |
25 - | Control unit for NOx sender -J583- |
q | Fitting location → Fig. |
26 - | Radiator outlet coolant temperature sender -G83- |
q | Fitting location → Fig. |
27 - | Injectors (piezo injectors) |
q | Cylinder bank 1 |
q | Removing and installing → Chapter |
28 - | Air mass meter -G70- |
q | Removing and installing → Chapter |
29 - | 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 | If fitted, the bypass flap is located in the air cleaner housing and the air cleaner bypass flap valve -N275- is located on the outside of the air cleaner housing |
q | Air cleaner - exploded view → Chapter |
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1 - | Exhaust gas temperature sender 3 -G495- |
q | Fitting location → Fig. |
2 - | NOx sender -G295- |
q | Fitting location → Fig. |
3 - | Lambda probe -G39- |
q | Fitting location → Fig. |
4 - | Engine control unit -J623- |
q | Fitting location → Fig. |
q | Removing and installing → Chapter |
5 - | Charge pressure sender -G31- |
q | With intake air temperature sender -G42- |
q | Fitting location → Fig. |
q | Removing and installing → Rep. gr.21 |
6 - | Throttle valve module -J338- |
q | 9 Nm |
7 - | Injectors (piezo injectors) |
q | Cylinder bank 2 |
q | Removing and installing → Chapter |
8 - | Fuel pressure sender -G247- |
q | Fitting location → Fig. |
q | Removing and installing → Chapter |
9 - | Connector for Lambda probe -G39- |
q | Fitting location → Fig. |
10 - | High-pressure fuel pump |
q | With fuel metering valve -N290- |
q | After renewing high-pressure pump, first fuel filling operation MUST be performed (it is important not to allow pump to run while it is still empty) → Chapter |
q | After renewing high-pressure pump or fuel pressure regulating valve -N276-, learnt values must be re-adapted; see „Guided Functions“ in vehicle diagnostic tester |
q | High-pressure pump - exploded view → Chapter |
q | Removing and installing → Chapter |
11 - | Fuel metering valve -N290- |
12 - | Exhaust gas recirculation control motor -V338- |
q | Fitting location → Fig. |
13 - | Exhaust gas recirculation cooler change-over valve -N345- |
q | Fitting location → Fig. |
14 - | Exhaust gas recirculation temperature sensor -G98- |
q | Fitting location → Fig. |
q | Removing and installing → Rep. gr.26 |
15 - | Electrical connector for exhaust gas temperature sender 3 -G495- |
16 - | Intake manifold flap 2 motor -V275- |
A - | Relay and fuse holder in electronics box in plenum chamber (left-side) |
q | Removing and installing engine control unit -J623- with altitude sensor → Chapter |
q | Fitting locations → Current flow diagrams, Electrical fault finding and Fitting locations |
B - | Low heat output relay -J359- and high heat output relay -J360- |
q | Fitting locations → Current flow diagrams, Electrical fault finding and Fitting locations |
C - | Brake light switch -F- and brake pedal switch -F47- |
q | In footwell on brake pedal |
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 temperature sender 1 -G235- |
q | On turbocharger |
q | 45 Nm |
q | Removing and installing → Rep. gr.26 |
F - | Engine speed sender -G28- |
q | Fitting location → Fig. |
G - | Supplementary fuel pump -V393- |
q | Fitting location → Fig. |
q | Removing and installing → Rep. gr.20 |
H - | Oil pressure switch -F22- |
q | Fitting location → Fig. |
q | Removing and installing → Rep. gr.17 |
I - | Valve for oil pressure control -N428- |
q | Fitting location → Fig. |
q | Removing and installing → Rep. gr.17 |
J - | Glow plugs |
q | Glow plug 1 -Q10- |
q | Glow plug 2 -Q11- with cylinder 2 combustion chamber pressure sender -G678- |
q | Glow plug 3 -Q12- |
q | Glow plug 4 -Q13- |
q | Glow plug 5 -Q14- with cylinder 5 combustion chamber pressure sender -G681- |
q | Glow plug 6 -Q15- |
q | Removing and installing → Chapter |
K - | 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 |
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