you don't have to do all that work. There are two small screws just above the radio (below the climate control). Take these out, then the wood trim will come out. Pull it out at the bottom (near the radio) first and lift the bottom part out and down so that you don't break the little tabs at the top. With this out you should have access to the switch panel with the hazard switch in it.

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Daily Driver: 02 E430 4MATIC
In the family: '03 E500 // '04 ML500 // 64 220SE