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| Remove backrest cover and padding → Chapter. |
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| Cut off wire -1- directly at bottom of old backrest heating element -2-. |
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| Cut through connecting webs and wiring -arrows-. |
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| Carefully detach backrest heating elements (top and bottom) -C- and -D- from adhesive and remove. |
Note | t
| Take care not to damage spacers. |
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| The heating elements -A- and -B- remain on the backrest bolsters and are covered with the new backrest heating element. |
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| Align new backrest heating element on padding -1-. |
Caution | t
| Take care to attach new backrest bolster heating elements in such a way that they cover the old seat heating elements exactly. |
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| Detach protective foil from areas of heating element in bonding sequence. |
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| When detaching protective foil, take care not to damage heating element and avoid creases when bonding. |
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| Bond individual areas of heating element in the sequence -A, B, C, D-. |
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| Route wiring leading to individual heating zones in bottoms of openings -arrows-. |
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| Pull wire -3- through slit in padding. |
| Perform remaining installation in reverse order of removal. |
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