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Old 31-03-21, 06:28 PM
Thomas591 Thomas591 is offline
Join Date: Mar 2021
Location: Norderstedt Germany
Posts: 98
Default How does the 411 Heater operates?


I am completely puzzled how the heating system works on my 411 S5. I Someone enlighten me what‘s technically happening when I turn the demist/defrost knob? Were can I get this spongy ( really awkward feeling) rubber tubing shown in the attached picture?


Thomas Willig
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