A4 Quattro Wagon L4-2.0L Turbo (BPG) (2005)
Seat Belt Tensioner: Testing and Inspection
Checking Belt Holding Sensor For Rear Three-point Seatbelt With Belt Tensioner
Special tools, testers and auxiliary items required
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Diagnostic Operating System VAS 5051 A
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Connect Diagnostic Operating System VAS 5051 A and select vehicle system "15. Airbag". Ignition must be switched on for this.
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Read measuring value block display group 004.
Belt webbing is fully retracted, Diagnostic Operating System VAS 5051 A display indicates -No-.
Belt tongue is engaged in buckle and belt webbing is extended by dimension -L-, Diagnostic Operating System VAS 5051 A display indicates -Yes-.
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Pull belt webbing out to stop. While belt is being extended, Diagnostic Operating System VAS 5051 A display must continue to display -Yes-.
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Extend belt to dimension -L-, without unlocking belt tongue. Diagnostic Operating System VAS 5051 A display must continue to indicate -Yes-.
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Unlock belt tongue and slowly retract belt webbing, at the latest by 100 mm extension, display must change from -Yes- to -No-.
Belt webbing is fully retracted, Diagnostic Operating System VAS 5051 A display indicates -No-.
Dimension - L:
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Dimension -L- is 250 mm for left and right seatbelts installed in sedans. The horizontal belt adjustment is centered.
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Dimension -L- is 220 mm for left and right seatbelts installed in Avants. The horizontal belt adjustment is centered.
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Dimension -L- is 500 mm for center seatbelts installed in sedans and Avants.