Mercedes Window Regulator - Genuine Mercedes 2127201579

Product Information

The window regulator is responsible for moving the piece of glass inside your door up or down. Window regulators can be manual (hand crank style) or powered (rolled up or down with the flip of a switch). Window regulators can fail after thousands of cycles. The most common failure of any window regulator is the pulley where the cable spins around. Most regulators use a very simple pulley system and due to the material they are constructed from they can fail easily with age.

When window regulators are worn and on the verge of failure there are typically warning signs. You will typically hear a clicking from inside the door panel when the window regulator is being operated. Alternatively, the motor which powers the pulley system may become weak over time resulting in a slow moving window in comparison to others. If you are experiencing these types of symptoms it's highly recommended to inspect and replace the worn parts.

• It takes multiple attempts to roll window up or down
• Window speed is slower than usual
• Clicking/grinding coming from inside the door as window is moving up or down
• Window out of alignment
• Window will not roll up or down (stuck in position)

About Genuine Mercedes

The original parts used by Mercedes Benz to build your car are available as replacement parts under the “Genuine Mercedes Benz” brand. Manufactured under the direction of Mercedes Benz, expect excellent quality and a premium price since these parts are exclusively available through the Mercedes Benz Dealership network.

You may not realize this, but the parts that make up your Mercedes-Benz are not necessarily manufactured by Mercedes-Benz. No cause for concern, as Mercedes-Benz designs the part, hires a manufacturer, and ensures its quality to you. In fact, many of these manufacturers have been making parts for Mercedes-Benz for decades. In our industry these manufacturers are called OEM (Original Equipment Manufacturers), and these are often brands you recognize, including Lemforder, ZF, Sachs, Bosch, Valeo, Zimmermann, Siemens VDO, Corteco, and more. Don’t be surprised to open that Genuine Mercedes-Benz parts box and find an OEM branded part inside, simply with the addition of a Mercedes-Benz logo.

Be sure to keep an eye out for OE tags on our product pages to quickly identify parts coming direct from OE manufacturers. That extra bit of insight could save you some serious money while shopping! Refer to our OE Academy for further information regarding the OE/OEM tags throughout the site.