A4 Cabriolet L4-1.8L Turbo (AMB) (2005)
Adjusting (front lifting unit)
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Remove window regulator motor, speaker and door insulation.
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Raise window (window is in short lift).
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Remove rubber stops - arrow -.
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Loosen front lifting unit lower nut through opening.
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Slide lifting unit in elongated hole until frame aligns with door inner notch.
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Tighten front lifting unit and seal opening with rubber plugs.
Shaft dimension, checking and adjusting (rear lifting unit)
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Disengage door trim as shown in illustration.
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Lay aside door seal - 1 - in B - pillar area.
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Raise window (window is in short lift).
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Using a caliper, measure shaft dimension (it must be possible to pull the gap gauge through with firm resistance).
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Shaft dimension - a - = 6 mm.
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Loosen lock nut - arrow -.
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Adjust shaft dimension by turning threaded pin.
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Tighten lock nut.