Mercedes-Benz E300 Automatic Shutdown Relay Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(16)

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.

Customer Ratings

(16)

Automatic Shutdown Relay Replacement Service

How much does a Automatic Shutdown Relay Replacement cost?

On average, the cost for a Mercedes-Benz E300 Automatic Shutdown Relay Replacement is $108 with $13 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2015 Mercedes-Benz E300V6-3.5LService typeAutomatic Shutdown Relay ReplacementEstimate$141.11Shop/Dealer Price$165.14 - $197.86
2013 Mercedes-Benz E300V6-3.5LService typeAutomatic Shutdown Relay ReplacementEstimate$121.11Shop/Dealer Price$145.17 - $177.91
1995 Mercedes-Benz E300L6-3.0L DieselService typeAutomatic Shutdown Relay ReplacementEstimate$133.15Shop/Dealer Price$160.22 - $201.99
1996 Mercedes-Benz E300L6-3.0L DieselService typeAutomatic Shutdown Relay ReplacementEstimate$133.15Shop/Dealer Price$160.18 - $201.92
2012 Mercedes-Benz E300V6-3.5LService typeAutomatic Shutdown Relay ReplacementEstimate$121.11Shop/Dealer Price$145.20 - $177.96
2008 Mercedes-Benz E300V6-3.0LService typeAutomatic Shutdown Relay ReplacementEstimate$133.15Shop/Dealer Price$160.22 - $201.99
2017 Mercedes-Benz E300L4-2.0L TurboService typeAutomatic Shutdown Relay ReplacementEstimate$138.15Shop/Dealer Price$157.57 - $193.60
1998 Mercedes-Benz E300L6-3.0L Turbo DieselService typeAutomatic Shutdown Relay ReplacementEstimate$138.15Shop/Dealer Price$165.64 - $207.71
Show example Mercedes-Benz E300 Automatic Shutdown Relay Replacement prices

What is the Automatic Shutdown Relay all about?

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.

Keep in mind:

  • The ASD relay is not inspected during normal maintenance, and will only be checked during diagnostics for problems with the vehicle not cranking.
  • Many other problems can cause your engine not to crank, so professional diagnosis is necessary.
  • ASD failure is relatively rare, but it does happen.

How it's done:

  • The automatic shutdown relay is verified to see if it needs to be replaced
  • The defective automatic shutdown relay is removed
  • The new automatic shutdown relay is installed
  • The automatic shutdown relay is tested for operation
  • The vehicle is tested to ensure proper operation of the automatic shutdown relay

Our recommendation:

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.

What common symptoms indicate you may need to replace the Automatic Shutdown Relay?

  • Engine will not start
  • Check Engine light is on
  • Engine starts but stalls and dies

How important is this service?

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.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Excellent Rating

(16)

Rating Summary
16
0
0
0
0
16
0
0
0
0

Lee

38 years of experience
218 reviews
Lee
38 years of experience
Mercedes-Benz E300 L6-3.0L Turbo Diesel - Oil Change - Guthrie, Oklahoma
Lee's Knowledge and experience is always appreciated...He is takes his time looking the vehicle over and letting me know what might be a problem in the future...Works very hard the entire time...Great Service!!

Chet

41 years of experience
493 reviews
Chet
41 years of experience
Mercedes-Benz E300 L4-2.0L Turbo - Pre-purchase Car Inspection - San Diego, California
Professional and on time, actually early. Provided good advise and piece of mind

Luis

18 years of experience
321 reviews
Luis
18 years of experience
Mercedes-Benz E300 L4-2.0L Turbo - Check Engine Light is on - South Orange, New Jersey
Great ! Thank you !

Theodore

16 years of experience
1604 reviews
Theodore
16 years of experience
Mercedes-Benz E300 L6-3.0L Turbo Diesel - Oil Change - Everett, Washington
Super friendly and knowledgeable.

Excellent Rating

(16)

Rating Summary
16
0
0
0
0
16
0
0
0
0
Number of Mercedes-Benz E300 services completed
176+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

Where Is the O2 Sensor Located?
Oxygen Oxygen sensors O2 sensors (https://www.yourmechanic.com/article/where-is-the-o2-sensor-located) will always be located in the exhaust system. Their function is to sense how much oxygen remains in the exhaust that is flowing out of the engine, and report that information to the vehicle’s...
How to Pick an Anti-Theft Device For Your Car
Depending Depending on where you live, an anti-theft device may give you added peace of mind about the security of your car. It may also lower your car insurance rates, which is an added bonus. With so many products on...
The Guide To Colored Curb Zones in South Carolina
South South Carolina parking laws: understanding the basics When parking in South Carolina, you need to make sure you understand the rules and laws that are in place. Knowing these will not only help to keep you from getting fines...

Stuck CV axle.

You do not specify the vehicle or year you are working on so I will have to guess that this vehicle has axles that do slide out of the trans-axle like most vehicles, and not by removing a roll pin...

Cooling fan staying on after washing engine

Hello. Water may have gotten into a relay (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-cooling-fan-relay) or the fuse box, which could be causing the fan to run or not work properly. I would suggest that you have a certified technician, like one from YourMechanic, inspect the...

Rough idle with ac and defrost on

A rough idle may be caused by many different things such as low fuel pressure, low voltage to the fuel injectors, dirty fuel injectors, a vacuum leak, a faulty Oxygen sensor or a dirty or failing idle air control valve....

How can we help?

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.

1 (855) 347-2779 · hi@yourmechanic.com