| Step 3 (There are metal particles in fuel delivery unit and fuel tank) |
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| Clean the fuel delivery unit and fuel tank using the diesel extraction system -VAS 5226-. |
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| Repeat this procedure until the fuel tank has been emptied completely. |
| All other vehicles continued |
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| Fill fuel tank with 5 litres of diesel fuel. |
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| Completely empty fuel tank again as described above. |
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| Renew following high-pressure components: |
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| High-pressure accumulator (rail) including fuel pressure regulating valve -N276- and fuel pressure sender -G247- → Chapter |
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| Fuel return lines (overflow oil lines) → Item |
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| Altea - Altea XL - Leon: Fuel filter → Chapter |
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