| Checking the fuel tank venting 04.10 ? |
| Special tools and workshop equipment required |
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| Hand vacuum pump, e.g. -V.A.G. 1390 - or hand vacuum pump -VAS 6213- |
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| The ignition must be switched off. |
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| Remove the ventilation line -1- from the activated charcoal filter to the activated charcoal filter system solenoid valve 1 -N80 --2-. |
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| Connect hand vacuum pump -VAS 6213- to vent line -1- as shown. |
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| Operate the hand vacuum pump several times. No vacuum should build up. |
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| Check the ventilation opening below the cover -4- on the activated charcoal filter -3- for dirt, clean as required. |
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| Remove the cover -4-, shut off the ventilation opening on the activated charcoal filter and once again operate the hand vacuum pump several times. A vacuum should build up. |
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| Replace activated charcoal filter. |
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