DME stands for Digital Motor Electronics. You can think of it as the brain of your Volkswagen. It takes information from various sensors located around the vehicle and uses that information to control your engine, transmission, and other components. Your DME can send and receive thousands of signals each second.
The DME has a second purpose as well: to minimize damage to your engine. If a sensor is failing and sending unrealistic data, it will use a preset values instead. If a spark plug fails, it will cut fuel to that cylinder. It also makes sure that your battery is at an optimum charge at all times. The DME will turn on your check engine light when it detects a problem. This is how your DME lets you know there’s a problem in the engine. The check engine light is your cue to get your Volkswagen to a mechanic.
The DME is one of the most important components in your Volkswagen. If the DME failing in your car, it may not receive the signals from the sensors, or it may read them wrong. It may also have trouble sending signals to the engine. This can cause a variety of problems.
Common Symptoms of DME Failure
Your check engine light is on
If your DME is damaged or experiencing trouble communicating with the other components, your check engine light will usually come on. When the light comes on, the DME will keep a record of the problem. In order to access this record, you have to have specialized equipment, so it’s always best to take your Volkswagen to a certified mechanic when this happens.
Your engine misfires
If your DME is damaged, your engine may misfire. Misfiring happens when one of the cylinders is not providing power to the engine. This is often random and can cause poor engine performance and fuel efficiency. It’s important to fix this quickly because an engine misfire can cause additional damage.
Your engine stalls
A damaged DME can cause your engine to stall by sending incorrect signals to the throttle or fuel injector. This may cause your engine to be starved of air or have too little fuel to continue the combustion process. If this occurs while driving, it could potentially cause an accident.
Your Volkswagen won’t start
If you cannot start your Volkswagen, it could be a sign that your DME has completely failed. The DME controls nearly every component in your car. Without the DME to send the correct signals to the engine and transmission, your car cannot run. If your car takes a few tries to start, this may be a sign your DME is failing. You should have it examined because if the DME completely fails, it could leave you stranded.
What should I do if I suspect a DME communication problem?
If you think you’re experiencing a problem with your DME, it’s very important that you have it examined by a certified mechanic. Not only could an issue with your DME leave your car unable to run, but because the DME helps prevent further damage to the engine when other components fail, a faulty DME could lead to more problems later.
A faulty DME shares symptoms with many other problems, so it can be difficult to tell exactly what is wrong with your car without the proper tools and training. To prevent further damage to your car, it is important that you have it diagnosed by a professional as quickly as possible. If your car keeps stalling and misfiring, it can damage the engine and other components. It’s best to have it examined before that happens.
We Will Help!
At Bavarian Auto, we are committed to quality. We take pride in being your alternative to the dealership. If you’re looking for a shop that can deliver expert service, then look no farther. We are Bosch certified, and our mechanics are expertly trained. They have decades of experience repairing and performing maintenance on German cars. Our shop services drivers from Ootelwah, Hixson, and Chattanooga, TN.
If you think there may be something wrong with your Volkswagen, please call and schedule an appointment with one of our mechanics today.