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On average, the cost for a Mercedes-Benz 420SEL Fuel Gauge Sender Replacement is $410 with $273 for parts and $136 for labor. Prices may vary depending on your location.
| Car | Service | Estimate | Shop/Dealer Price |
|---|---|---|---|
| 1990 Mercedes-Benz 420SELV8-4.2L | Service typeFuel Gauge Sender Replacement | Estimate$708.99 | Shop/Dealer Price$864.73 - $1288.94 |
| 1986 Mercedes-Benz 420SELV8-4.2L | Service typeFuel Gauge Sender Replacement | Estimate$682.99 | Shop/Dealer Price$838.77 - $1263.01 |
| 1988 Mercedes-Benz 420SELV8-4.2L | Service typeFuel Gauge Sender Replacement | Estimate$682.99 | Shop/Dealer Price$838.76 - $1263.00 |
| 1987 Mercedes-Benz 420SELV8-4.2L | Service typeFuel Gauge Sender Replacement | Estimate$682.99 | Shop/Dealer Price$838.71 - $1262.91 |
| 1991 Mercedes-Benz 420SELV8-4.2L | Service typeFuel Gauge Sender Replacement | Estimate$682.99 | Shop/Dealer Price$838.80 - $1263.06 |
| 1989 Mercedes-Benz 420SELV8-4.2L | Service typeFuel Gauge Sender Replacement | Estimate$682.99 | Shop/Dealer Price$838.76 - $1263.00 |
The fuel gauge sender is a fairly simple component that is located in your car’s fuel tank. It consists of a float that is connected to a metal rod. The end of this thin rod is mounted to a resistor, which measures electrical flow. When there is more resistance, less current flows. A slider connected to the fuel gauge slides on the metal strip, and delivers current to the resistor from the gauge. If the slider is close the grounded side, there is less resistance, and if it’s at the end of the strip, there is more resistance. The fuel gauge on your dash interprets the resistance and indicates the fuel level with a needle on your cluster. If the fuel gauge sender isn’t working, you will get an inaccurate reading on your fuel gauge.
Variations in gas gauge readings are common, but if you notice a significant difference in what the gauge tells you, and what you know is in your car gas tank, have one of our expert mechanics diagnose the problem with the fuel gauge sender and replace it if necessary.
The fuel gauge is a convenience item; if you run out of fuel, you may be stranded. If your fuel gauge sender has failed or is working intermittently, have it replaced when you can. Make sure to fuel up regularly to avoid running out of fuel.
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