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Mercedes Check Engine Light Illumination

Reasons Behind Illumination of Check Engine Light in Your Mercedes from Experts in Scottsdale

by techplusaadmin September 11, 2021

Anyone who has owned a car knows that stomach-dropping feeling when the check engine light comes to life on the dashboard. Immediately your mind starts to go to the worst-case scenario. However, just because the check engine light comes on in your Mercedes doesn’t mean that you are going to be dropping thousands of dollars for car repairs.

The purpose of the check engine light is to let you know when something is wrong with your car. This can mean a wide variety of things, as the light itself doesn’t give you the ability to distinguish between major and minor problems. All it does is alert you that something isn’t right and let you know that you should get your Mercedes inspected by a professional mechanic.

Most Common Reasons Your Check Engine Light is Illuminated

Although there are many reasons the engine light might come on in your Mercedes, let’s take a look at some of the most common:

  • Loose Gas Cap: This is an example of a relatively minor problem causing your check engine light to activate. It happens when your gas cap is loose, missing, or broken and can cause your vehicle to get slightly fewer miles per gallon. It’s not an expensive fix, but it would still be wise to get your Mercedes checked out to make sure that’s the only problem.
  • Failing Catalytic Converter: The catalytic converter is part of the exhaust system and is a fairly common cause of engine light activation. The converter can become clogged or damaged, which will not allow exhaust fumes to escape properly. This can be very dangerous, as exhaust fumes are quite deadly.
  • Fouled Spark Plug or Spark Plug Wires: Spark plugs are what allow your car to start up and run smoothly and efficiently. If your Mercedes has a faulty spark plug or one of the spark plug wires becomes frayed or disconnected, your Mercedes may not start at all. If it starts, you will have reduced fuel economy, and the problem will only worsen with time.
  • Faulty Oxygen Sensor: Your oxygen sensor provides vital information to the ECU of your Mercedes about air and fuel mixtures. A faulty sensor will lead to your engine being supplied with too much or too little fuel. An engine with too little fuel is in danger of completely failing, and an engine with too much fuel could cause excessive smoke and odor problems.
  • Faulty Mass Air Flow Sensor: The MAF sensor measures the amount of air entering the engine and makes sure that the combination of air and fuel is just right, similar to the oxygen sensor. A faulty MAF sensor can cause your engine to misfire, ultimately causing poor fuel economy, performance and potentially more unnecessary damage to your engine.

What To Do When Your Engine Light Alerts You to a Problem

No matter the cause of the check engine light illuminating, the recommendation is always to get your Mercedes checked out by a professional. Even if it turns out to be a small problem, professional assistance is always the safe and easy route. This will ensure that your Mercedes is in good condition. It will also give you peace of mind, which is priceless.

Tech Plus Automotive is Here To Help

No matter what the problem may be, Tech Plus Automotive is here to assist you with all of your Mercedes needs. Mercedes Spark Plug Check We are the most preferred auto repair facility in Scottsdale, Arizona with additional locations in Phoenix, McCormick Ranch, and Paradise Valley.

We are famous for having the cleanest and most sanitary facilities most customers have ever or will ever see! We implement seat covers, floor mats, and fender covers to ensure safety and cleanliness when servicing all vehicles.

Each of our facilities features state-of-the-art equipment to ensure that we have the best diagnostic equipment available in order to leave no stone unturned. No matter the problem, we will find it and repair it quickly & affordably.

At Tech Plus Automotive, we take all of your concerns seriously, no matter the problem, and our staff will treat you and your car with the care and respect you deserve. Our sterling reputation is second to none, as we have faithfully served the Scottsdale area for nearly 20 years. Call today and make an appointment with one of our friendly staff members today!

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