S4 Quattro Wagon V8-4.2L (BHF) (2008)
Seat Heater: Overhaul
Backrest Heating Element
Backrest Heating Element
Removing
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Remove seat. Refer to => [ Seat ] See: Service and Repair/Removal and Replacement/Front RS Sport Seat.
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Remove the backrest. Refer to => [ Front Backrest and Seat Pan ] See: Service and Repair/Removal and Replacement/Front RS Sport Seat.
‹› Electrical wiring harness must not be loosened at seat pan.
‹› Set aside backrest toward rear on soft surface.
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Remove backrest cover and upholstery. Refer to => [ Backrest Cover and Cushion ] See: Service and Repair/Overhaul/Seats - Upholstery,
Covers/Covers and Cushion, RS Front Sport Seats/Backrest Cover and Cushion.
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Cut out area - A - with electrical connection wire from old heating element.
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Remove old electrical connection wire.
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Disconnect electrical wire connections to heating elements at backrest bolsters at positions - B -.
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Disconnect electrical connection wires to upper backrest heating element at positions - C -.
Installing
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Align new heating element on backrest surface, remove protective foil and glue new heating element to same positions as old heating elements.
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Route connecting wires to backrest bolsters through openings in seat cushion without crossing.