1115 Reviews
The check engine light turning on is one of the most unwelcoming and worrisome sights you experience while driving a Mercedes. A check engine light is a warning indicator from your car’s computer that something is wrong with your engine. Depending on the seriousness of the issue, the sign may show up in orange, yellow, or red and display on the dashboard, right beneath the steering wheel’s view. It could occur as a result of a minor or major issue. In any case, don’t disregard the warning indication. Make it the top item on your to-do list, and get to a trusted Mercedes mechanic right away for inspection.
Causes For Mercedes Check Engine Light
We’ve compiled a list of some of the most common reasons why your Mercedes check engine light will illuminate:
- An Unsecured Gas Cap: Your car’s check engine light might come on by chance if you forgot to tighten your gas cap after filling up your car. When the gas cap is loose, vapors from the gasoline tank seep out. Thus, your car’s engine computer signals to your dashboard to remind you to tighten the gas cap. Similarly, if your gas cap is cracked or missing, the check engine light will come on.
- A Dead Battery: This is one of the issues that car owners frequently miss or overlook. The battery controls all of your vehicle’s electrical systems. If your battery is low, your check engine light may come on. If that happens, consider charging or replacing your car’s battery.
- A Poorly-Installed Aftermarket Alarm: With their high-pitched sirens, aftermarket alarms tend to shock and frighten intruders and keep them at bay. However, if they aren’t installed correctly, they can cause a variety of problems in your car, including battery drain, which will flash the check engine light.
- A Defective Oxygen Sensor: It’s one of the most prevalent causes of a flashing check engine light. Your Mercedes-Benz’s oxygen sensor keeps track of the amount of unburned oxygen in the exhaust. The check engine light will appear on your dashboard if an oxygen sensor is defective.
- Exhaust Gas Recirculation (EGR) Valve Failure: In order to improve the efficiency of your vehicle’s performance, your car’s engine emits nitrogen oxide, which is quite poisonous. The exhaust gas recirculation valve aids in the reduction of nitrogen oxide emissions. The EGR valve may wear down over time, causing the check engine light to flash.
Take Action
First and foremost, do not panic. The check engine light can occur for many of the reasons listed above, and not all of them necessitate costly repairs. However, don’t ignore the signs, but instead, follow the instructions below.
- Inspect Your Car: Stop driving, step out of the car, and inspect the engine. Determine the severity of the problem by inspecting the valves, hoses, spark plugs, and gauges.
- Check The Gas Cap: If you can’t find any obvious cause for your search light engine to light on, double-check your gas cap just to be sure. Maybe that’s the sticking point. Tighten it up and look for the sign on your dashboard once more.
- Lighten Your Load: If you haven’t made any progress after following the first two steps, then aim for your trusted Mercedes specialist. However, try reducing the speed of your car and lightening any extra burden on your way to us.
Corpus Auto Service For Your Mercedes Benz
Since 1984, Corpus Auto Service has assisted and earned the appreciation of drivers in the Portland, Rockport, Aransas Pass, Calallen, Corpus Christi, TX areas. 
Our services are not limited to Mercedes-Benz vehicles. We also work with Volvo, Jaguar, Land Rover, Mini, Porsche, Audi, and BMW vehicles. In addition, all of our services come with a one-year warranty.
With exceptional service, up-to-date technology, and factory equipment, our licensed mechanics are always ready to help your Mercedes get safely back on the road at affordable prices. We will provide suggestions and tactics to help you avoid these issues in the future. Make an appointment with us, and allow our technicians to maintain and repair your Mercedes when needed. We look forward to having you as one of our happy, returning customers!