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On average, the cost for a Mercedes-Benz C250 Automatic Shutdown Relay Replacement is $114 with $19 for parts and $95 for labor. Prices may vary depending on your location.
| Car | Service | Estimate | Shop/Dealer Price |
|---|---|---|---|
| 2015 Mercedes-Benz C250L4-1.8L Turbo | Service typeAutomatic Shutdown Relay Replacement | Estimate$153.15 | Shop/Dealer Price$180.19 - $221.94 |
| 2011 Mercedes-Benz C250V6-2.5L | Service typeAutomatic Shutdown Relay Replacement | Estimate$133.15 | Shop/Dealer Price$160.22 - $201.99 |
| 2012 Mercedes-Benz C250L4-1.8L Turbo | Service typeAutomatic Shutdown Relay Replacement | Estimate$133.15 | Shop/Dealer Price$160.22 - $201.99 |
| 2010 Mercedes-Benz C250V6-2.5L | Service typeAutomatic Shutdown Relay Replacement | Estimate$133.15 | Shop/Dealer Price$160.18 - $201.92 |
| 2012 Mercedes-Benz C250V6-2.5L | Service typeAutomatic Shutdown Relay Replacement | Estimate$133.15 | Shop/Dealer Price$160.25 - $202.04 |
| 2014 Mercedes-Benz C250L4-1.8L Turbo | Service typeAutomatic Shutdown Relay Replacement | Estimate$133.15 | Shop/Dealer Price$160.22 - $201.99 |
| 2013 Mercedes-Benz C250L4-1.8L Turbo | Service typeAutomatic Shutdown Relay Replacement | Estimate$138.15 | Shop/Dealer Price$164.98 - $206.57 |
When you turn the key for your ignition to start, many different things happen. The fuel pump turns on, sending gas from the tank, through the lines, to the injectors. The battery sends voltage to the ignition system, which creates a spark, igniting fuel vapor and starting your engine. However, if the automatic shutdown relay (ASD) is not working, none of this will happen.
The automatic shutdown relay controls the power that is supplied to the ignition, the fuel pump, and the injectors, as well as other components. It is only activated for a few seconds during cranking, and is then turned off. Depending on the make and model in question, the automatic shutdown relay could be located under the hood, under the dash, or in another position.
As with any other electrical component, your automatic shutdown relay is subject to wear and tear, and frequent stopping and starting of the engine will exacerbate that wear. Eventually, it will fail and you’ll be left with a vehicle that doesn’t crank.
Your automatic shutdown relay provides power for some of the most important systems on your vehicle during ignition. If it fails, your engine will not crank, and it cannot be jumpstarted. If you are experiencing a no start condition, it may be the ASD relay, but it could be another problem. Seek immediate professional diagnosis and replacement by one of our expert mechanics.
Without an operational automatic shutdown relay, your engine will not start, which means your vehicle is not able to move. However, there are many other problems that can create the same symptom, ranging from a dead battery to a damaged battery, or a damaged cable to a failed main relay. If your automatic shutdown relay has failed, you will have to replace it before your vehicle will operate again.
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