| In exceptional cases, e.g. in the event of customer complaints about droning noises, vibrations during idling it is permissible to slightly adjust the idling speed. Make sure you do not exceed or fall below the indicated speed for exhaust-emission analysis (it is quite possible the emission levels will be exceeded at the next exhaust-emission analysis). |
| Special tools and workshop equipment required |
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| Vehicle system tester -V.A.G 1552 - with cable -V.A.G 1551/3, 3A, 3B oder 3C- |
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