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| Disconnect electrical connector -2-. |
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| Unscrew bolt -3-, pull pressure differential sender -G505- from bracket -arrow-. |
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| Remove retaining clips from both hoses. |
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| Pull hoses carefully and straight from unions (unions break off pressure sensor very easily). |
| Installation is carried out in the reverse order; note the following: |
Note | t
| Before installing, blow out control lines of pressure differential sender -G505- to particulate filter with compressed air towards particulate filter (blocked or iced up due to condensation). |
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| Make sure that hoses are securely fitted and seal properly. |
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| If pressure hoses have been detached from particulate filter, tighten → Chapter. |
| Adaptation must be performed after renewing pressure differential sender -G505- and/or particulate filter. (The procedure is also described under Guided Functions). |
| Select correct vehicle in Guided fault finding. |
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| Press „Function/component selection“. |
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| Select „drive (Rep. Gr. 01; 10 - 39)“. |
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| Select respective engine code. |
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| „01 - Self-diagnosis compatible systems“ |
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| Select „01 - Diesel direct injection and glow plug system EDC 17“. |
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| Select „01 - Functions“. |
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| Select „01 - Reset programmed values of pressure differential sender (PDS)“. |
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