Side Mirror Adjustment Knob for Mercedes E Class W210.S Class W140. This side mirror adjustment knob, compatible with the Mercedes E-Class W210 and S-Class W140 models, is the ideal solution for replacing worn or broken knobs. Made of high-quality material, its durable construction ensures long-lasting use. Easy to install, it can be installed quickly without requiring professional assistance. Its ergonomic design provides drivers with comfortable use and adds an aesthetic touch to your vehicle's interior. Product Code: WB2229