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On average, the cost for a Mercedes-Benz S420 Window Regulator Replacement is $196 with $73 for parts and $123 for labor. Prices may vary depending on your location.
| Car | Service | Estimate | Shop/Dealer Price |
|---|---|---|---|
| 1998 Mercedes-Benz S420V8-4.2L | Service typeWindow Regulator - Driver Side Rear Replacement | Estimate$386.64 | Shop/Dealer Price$459.68 - $596.12 |
| 1998 Mercedes-Benz S420V8-4.2L | Service typeWindow Regulator - Passenger Side Front Replacement | Estimate$577.95 | Shop/Dealer Price$713.73 - $1065.86 |
| 1994 Mercedes-Benz S420V8-4.2L | Service typeWindow Regulator - Driver Side Front Replacement | Estimate$577.95 | Shop/Dealer Price$713.73 - $1065.86 |
| 1994 Mercedes-Benz S420V8-4.2L | Service typeWindow Regulator - Driver Side Rear Replacement | Estimate$268.65 | Shop/Dealer Price$327.68 - $453.60 |
| 1995 Mercedes-Benz S420V8-4.2L | Service typeWindow Regulator - Passenger Side Front Replacement | Estimate$577.95 | Shop/Dealer Price$713.77 - $1065.93 |
| 1995 Mercedes-Benz S420V8-4.2L | Service typeWindow Regulator - Passenger Side Rear Replacement | Estimate$344.64 | Shop/Dealer Price$417.74 - $554.22 |
| 1999 Mercedes-Benz S420V8-4.2L | Service typeWindow Regulator - Driver Side Front Replacement | Estimate$584.95 | Shop/Dealer Price$720.40 - $1072.27 |
| 1996 Mercedes-Benz S420V8-4.2L | Service typeWindow Regulator - Driver Side Front Replacement | Estimate$584.95 | Shop/Dealer Price$721.31 - $1073.87 |
The power window motor is an electrical motor with gears that engage the window regulator. The motor takes the drivers input via a switch and sends a power signal to the motor to move the window up or down. The window regulator transfers power from the window motor to the window glass, moving it up or down. The regulator is made up of two tracks, a thin metal cable, and some plastic pieces that act as guides for the cable. These plastic pieces over time will break causing the metal cable to come loose and the window to fall inside the door. This will require the regulator assembly to be replaced. Most window motors and regulators are sold as a unit.
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