Volkswagen vehicles have several mechanical and electronic components that communicate with each other to ensure a smooth ride, but sometimes you might experience issues that are not easily noticeable. One of the parts that should not be overlooked is the DME module, which stands for Digital Motor Electronics. The DME is responsible for controlling various operations of the engine including fuel injection, timing of the ignition, and emission systems. When there is a communication failure in the DME, a lot of problems arise that impact your car’s performance and driveability. If you know the signs of a DME communication failure, then you will be able to prevent further damage. Here are some common signs that you should look for in your Volkswagen.
How To Know There’s Communication Failure In The DME
Poor Engine Performance
Non-performance of DME can cause low performance of an engine. You may realize that your Volkswagen does not accelerate to the expected levels or has a hard time doing so. This is because the DME is not signaling the engine parts correctly to deliver fuel or to ignite at the right time. If your car is slow to respond, then it might be an indication of a DME problem.
Difficulty Starting the Engine
If you have a hard time cranking your car, then this is also a clear indication that there is a failure in communication of DME. The DME regulates the ignition system and fuel injection; therefore, if something is wrong with it, the engine may fail to start. You might have to crank the engine for longer times or the engine might not start at all. If you discover that you have to attempt starting your VW several times, then it is high time you take it for servicing.
Emissions Problems
The DME also has the function of regulating emissions of your VW. If the communication link is lost, then the emissions go up and this may lead to your car not passing an emissions test. You may also find that the car idles roughly or notice smells that are not normal from the exhaust. It is good to lower your emissions not only for passing your inspection but also for the wellbeing of the environment.
Diagnostic Trouble Codes (DTCs)
When there is a communication failure in the DME, it leads to the generation of Diagnostic Trouble Codes (DTCs) that can be retrieved using a scan tool. These codes can give particular details as to what is off with the vehicle in question. If you own a scan tool, you can run these checks yourself, but it is recommended that you take your automobile to a mechanic to get a full diagnostic check done.
Electrical Issues
The DME is part of the vehicle’s major electronic control systems. If it does not work, you might experience other electrical problems. This could range from issues with the dashboard lights, power windows, or any other electronic system in your VW. If you find yourself with several electrical issues on your hands, it may not be a bad idea to think that the DME is to blame.
What To Do When You Suspect DME Has Failed
Make sure your battery is charged and all cables and connectors are properly connected. Sometimes, the problem with the electronics is just a bad battery or loose connections. If you are having the Check Engine Light on or any of the symptoms listed above, it is wise to consult a mechanic. DME problems are not simple to fix, and if you try to solve the problem on your own without adequate skills and equipment, you can make the situation even worse.
Your Trusted Mechanic for Volkswagen and European Car Repairs
At Escondido German Auto, we are your 
go-to mechanic for maintaining and repairing Volkswagen and other popular European cars. We have a team of dedicated and experienced mechanics who will perform a thorough check of your car to address any issues you are facing. If you find out that there is a failure in the DME, do not worry, you can just drive to our workshop. We will ensure that your Volkswagen is fixed to drive smoothly. While our workshop is based in Escondido, we also help clients from Rancho Bernardo and Valley Center, California. You can contact us immediately at the number (760) 741-3905 to know how we can assist you.