Mercedes-Benz Check Engine Light

When your new or used Mercedes-Benz check engine light comes on as you’re driving on Los Angeles roads, you want to make sure you take care of the issue as soon as possible with our service team at Mercedes-Benz of Los Angeles before larger automotive problems arise. Since your Mercedes-Benz check engine light can indicate a variety of things including a broken oxygen sensor or a dying battery, if left unattended, you’ll continue to experience issues with performance, fuel economy, emissions control, and more. Here’s a quick breakdown of reasons why your Mercedes-Benz check engine light is on:

• High idling or engine stalling
• Incorrect air/fuel mixture
• Ignition timing problems
• Battery or charging problems
• Engine overheating
• Low oil pressure
• Malfunctioning oxygen sensor
• Malfunctioning catalytic converter
• Broken mass airflow sensor
• Faulty spark plugs and wires

How to Reset a Check Engine Light

How to Reset a Check Engine Light Using a Scanner

An easy way you can check your Mercedes-Benz engine and other diagnostic issues on Los Angeles roads is by purchasing an advanced OBD II diagnostic scanner. With this easy to use tool, simply plug it in under the steering wheel, and the device will identify issues in a flash and indicate what they are through various codes so you can easily locate the problem. Once you’ve had your vehicle serviced, reset your Mercedes-Benz check engine light using a scanner by pressing “Clear” or “Reset” on your chosen device. This way your vehicle can notify you once again if it notices any other checks down the road.

How to Reset a Check Engine Light Without a Scanner

If you need to reset your Mercedes-Benz check engine light by disconnecting the negative battery cable, this will force your vehicle’s diagnostic systems to recalibrate. If any issue was previously solved, your check engine light should be deactivated. If it still continues to be on, take these steps:

1. Put on safety glasses and gloves, and remove all jewelry and metal from your person. Turn off the ignition, and open the hood.
2. Locate the battery, and locate the negative terminal. It is usually black and/or marked with a minus (-) sign.
3. Loosen the terminal using a wrench, and hold the negative cable to the side for 30-60 seconds. Don’t let the cables touch, or you may create dangerous sparks!
4. If you have a friend nearby, have them press the vehicle’s horn to drain any excess power from the vehicle.
5. Reconnect the negative battery cable and return everything to its place (Keep in mind that disconnecting the battery may cause certain electronic systems to reset, so you may have some reprogramming to do).

Find More Mercedes-Benz Service Tips at Mercedes-Benz of Los Angeles

Now that you’ve seen our guide on what your Mercedes-Benz check engine light means and how to reset it, count on the service professionals at Mercedes-Benz of Los Angeles to have you back behind the wheel in no time. Keep your luxury vehicle moving at its best on Los Angeles roads with our service tips and tricks, and save on your next visit with our rotating service and parts specials. Contact us today for more information on your Mercedes-Benz check engine light and to schedule an appointment at our dealership in Los Angeles!