Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.
Included for free with this service
Online Booking
Mechanic comes to you
12-month / 12k-mile warranty
Free 50 point safety inspection
Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.
On average, the cost for a Mercedes-Benz S420 Window Motor Replacement is $231 with $136 for parts and $95 for labor. Prices may vary depending on your location.
| Car | Service | Estimate | Shop/Dealer Price |
|---|---|---|---|
| 1994 Mercedes-Benz S420V8-4.2L | Service typeWindow Motor - Driver Side Rear Replacement | Estimate$386.95 | Shop/Dealer Price$472.44 - $689.54 |
| 1996 Mercedes-Benz S420V8-4.2L | Service typeWindow Motor - Driver Side Rear Replacement | Estimate$366.95 | Shop/Dealer Price$452.47 - $669.59 |
| 1999 Mercedes-Benz S420V8-4.2L | Service typeWindow Motor - Driver Side Front Replacement | Estimate$1269.67 | Shop/Dealer Price$1580.87 - $2475.03 |
| 1994 Mercedes-Benz S420V8-4.2L | Service typeWindow Motor - Passenger Side Rear Replacement | Estimate$1311.21 | Shop/Dealer Price$1632.76 - $2558.04 |
| 1995 Mercedes-Benz S420V8-4.2L | Service typeWindow Motor - Driver Side Front Replacement | Estimate$1269.67 | Shop/Dealer Price$1580.90 - $2475.08 |
| 1997 Mercedes-Benz S420V8-4.2L | Service typeWindow Motor - Driver Side Front Replacement | Estimate$1269.67 | Shop/Dealer Price$1580.87 - $2475.03 |
| 1994 Mercedes-Benz S420V8-4.2L | Service typeWindow Motor - Driver Side Front Replacement | Estimate$1274.67 | Shop/Dealer Price$1585.63 - $2479.61 |
| 1999 Mercedes-Benz S420V8-4.2L | Service typeWindow Motor - Driver Side Rear Replacement | Estimate$371.95 | Shop/Dealer Price$457.89 - $675.31 |
The window motor is located inside the door panel behind the trim, and is responsible for raising and lowering the window when the switch is pressed. It is a reversible electric motor, powered up by an electric switch on the inside of the door. When the button to open or close the window is pressed, a circuit completes and the electric window motor cycles. The window glass is attached to a track and is on a window regulator that allow it to move squarely and smoothly up and down. If the window motor is faulty, you may experience a slow-moving window especially upward, the window may not move at all when the button is pressed, or the window may begin to sink back into the door after the power window switch is released.
Because the window motor is a sealed system, it does not receive any scheduled maintenance. When it fails, replacement is the only option. However, there are other potential causes of malfunctions, including the window switch and wiring problems. If you’ve noticed that your window motor is not working properly, or it is working inconsistently, have the problem diagnosed by one of our expert mechanics.
The power window motor closes your door windows to provide security for belongings inside, and provides protection from environmental elements. A window must be able to open in the event of an emergency, so have a faulty window motor replaced immediately.
Fast and easy service at your home or office
Backed by 12-month, 12.000-mile guarantee
Real customer reviews from Mercedes-Benz owners like you.
Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.
