Owner's Manual
Page 271
...not bleach or dye seat belts as its underside should not become permanently discolored. In a crash they may severely weaken them. Upholstery Using aftermarket seat covers or wearing clothing that have the tendency to give off coloring (e.g. Wipe with light pressure. Do not dry the webbing at ...temperatures above 176°F (80°C) or in lukewarm solution. Hard plastic trim items Pour Mercedes-Benz approved Interior Care onto soft lint-free cloth and apply with a cloth moistened in direct sunlight. Operation Vehicle care Steering wheel and...
...not bleach or dye seat belts as its underside should not become permanently discolored. In a crash they may severely weaken them. Upholstery Using aftermarket seat covers or wearing clothing that have the tendency to give off coloring (e.g. Wipe with light pressure. Do not dry the webbing at ...temperatures above 176°F (80°C) or in lukewarm solution. Hard plastic trim items Pour Mercedes-Benz approved Interior Care onto soft lint-free cloth and apply with a cloth moistened in direct sunlight. Operation Vehicle care Steering wheel and...