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On average, the cost for a Mercedes-Benz 420SEL Headlight Dimmer Switch Replacement is $599 with $428 for parts and $171 for labor. Prices may vary depending on your location.
| Car | Service | Estimate | Shop/Dealer Price |
|---|---|---|---|
| 1989 Mercedes-Benz 420SELV8-4.2L | Service typeHeadlight Dimmer Switch Replacement | Estimate$1063.70 | Shop/Dealer Price$1309.39 - $1975.56 |
| 1991 Mercedes-Benz 420SELV8-4.2L | Service typeHeadlight Dimmer Switch Replacement | Estimate$1027.70 | Shop/Dealer Price$1273.44 - $1939.65 |
| 1990 Mercedes-Benz 420SELV8-4.2L | Service typeHeadlight Dimmer Switch Replacement | Estimate$1027.70 | Shop/Dealer Price$1273.44 - $1939.64 |
| 1987 Mercedes-Benz 420SELV8-4.2L | Service typeHeadlight Dimmer Switch Replacement | Estimate$1027.70 | Shop/Dealer Price$1273.37 - $1939.52 |
| 1988 Mercedes-Benz 420SELV8-4.2L | Service typeHeadlight Dimmer Switch Replacement | Estimate$1027.70 | Shop/Dealer Price$1273.49 - $1939.73 |
| 1986 Mercedes-Benz 420SELV8-4.2L | Service typeHeadlight Dimmer Switch Replacement | Estimate$1027.70 | Shop/Dealer Price$1273.44 - $1939.64 |
The headlamp dimmer switch may be part of the turn signal switch or it can be mounted on the floor. This switch enables you to dim the headlamp beam from low to high or vice versa. A bad switch will not change the headlamp beam. Your headlamps being stuck on high beams can create a dangerous situation for oncoming drivers.
It should be noticeable when your headlamp dimmer switch stops working. If you find that your vehicle is unable to alternate between high and low beams, then you should schedule a service.
The headlamp dimmer switch allows you to select between your headlamp's high and low beams. When you pull the lever on your steering wheel column, the dimmer switch triggers the high beams, and either turns them on or turns them off. When the headlamp dimmer switch malfunctions, your headlights won’t be able to switch between high and low. You’ll either be stuck with only low beams, which can mean poor visibility, or you’ll be stuck with only high beams, which is hazardous to the drivers around you.
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