A1
High-pressure pump - exploded view |
1 - | Bracket for ancillaries |
q | Removing and installing → Rep. gr.13 |
2 - | Bolt |
q | 2x |
q | Renew |
q | 20 Nm + turn 180° further |
3 - | Hub |
q | Use counterhold tool -T10051- when loosening and tightening |
q | To remove, use puller -T40064- |
4 - | High-pressure pump |
5 - | Bolt |
q | 3x |
q | Renew |
q | 20 Nm |
6 - | Nut |
q | 95 Nm |
7 - | Bolt |
q | Renew |
q | 20 Nm + turn 45° further |
8 - | High-pressure pump |
q | With fuel metering valve -N290- (do not open) |
q | After renewing, 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 | Removing and installing → Chapter |
9 - | Fuel supply hose |
10 - | Fuel return hose |
11 - | High-pressure pipes |
q | Between high-pressure pump and fuel rail |
q | Do not interchange |
Note
t | Note identification marks for cylinder allocation when re-installing high-pressure pipes. |
t | The high-pressure pipes can be re-used after performing the following checks: |
t | Check taper seats of high-pressure pipes for deformation and cracks. |
t | The bore of the pipe must not be distorted, restricted or otherwise damaged. |
t | Corroded pipes must not be used again. |
q | Install free of stress |
q | 25 Nm |