Early 107 series cars had a design fault whereby condensate could spill into the footwells, particularly when cornering. I cannot remember what the cure for this is but from memory later models had a design change (someone else may be able to refresh my memory on this). I used to tell my wife to catch it in her shoes to prevent the carpets getting wet! I'm sure many rusted 107 floors were due to permanently wet foam underlay resulting from condensate leaking into the footwells. Since my SLC lost its refrigerant due to a leak which I have not bothered repairing it since it is no longer my daily driver, I have not recently had the problem of iced water falling on our feet.

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107.023: 350SLC, 3-speed auto, icon gold, parchment MBtex (sold 2012 after 29 years ownership).
107.026: 500SLC, 4-speed auto, thistle green, green velour.
124.090: 300TE, 4-speed auto, arctic white, cream-beige MBtex.
201.028: 190E 2.3 Sportline, 5-speed manual, arctic white, blue leather.
201.028: 190E 2.3, 4-speed auto, blue-black, grey MBtex.
201.034: 190E 2.3-16, 5-speed manual, blue-black, black leather.