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| Unplug electrical connector -3-. |
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| Unclip pressure differential sender -G505--2- from bracket and detach. |
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| If hose is to be disconnected from pressure sender, release hose clips (if fitted) and spray hose with silicone-free lubricant. |
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| To prevent hose connection from breaking off, carefully disconnect hose and keep it straight when pulling it off. |
Note | The short measuring line can be pulled off with the pressure differential sender -G505- removed. |
| Installation is carried out in the reverse order; note the following: |
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| Blow through hose (towards particulate filter) with compressed air to remove dirt or ice (frozen condensation). |
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| Make sure that hoses are securely fitted and that there are no leaks. |
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| If pressure pipes have been detached from particulate filter, tighten connections to specified torque. |
| Adaption must be performed after renewing pressure differential sender -G505- and/or particulate filter. Use → Vehicle diagnostic tester. |
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