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Is it safe to drive your 2012 VW Passat with the check engine light on?

This question is not very accepted because it all depends on the severity of the issue. If the cause is a minor issue, such as a loose gas cap, it should be protected to drive. This is typically indicated by a consistent glow of the check engine light. If you notice a difference in the performance of the vehicle, it could be an indication of a more risky problem. If the check engine light is twinkling, this means that there is a risky issue and it is recommended to service your VW Passat shortly. Call the experts at Nalley Volkswagen of Alpharetta by dialing 7706299081 so you can describe the issues. Or reduce your speed and bring your 2012 VW to our certified mechanics as soon as productive.

What Does the Check Engine Light Mean?

One of the most normally misunderstood lights or indicators in your 2012 VW Passat is the check engine light. The check engine light is part of the onboard diagnostics system, and displays in a bit different ways. It can say "Check Engine", it can be a symbol of an engine, it can even be a combination of both. This light illuminates in either an amber or red color and is part of the diagnostics system found on your vehicle. Onboard computers increasingly have controlled and monitored vehicle performance since the 80s and do a variety of things for your 2012 VW Passat. Some of these include shifting automatic transmissions controlling engine speed, ignition timing, and implementing stability control, just to name a few. With that being said, the check engine light can mean a variety of exact things. It can be as conclusive as your gas cap being loose or as hazardous as engine knocking. If your check engine light is on in your 2012 VW Passat, contact Nalley Volkswagen of Alpharetta. Contact Nalley Volkswagen of Alpharetta today! Our VW service department can help you find out what code is turning your check engine light on or inspect why your check engine light is blinking.

Check Engine Light Service 2012 VW Passat

What do you do when you’re driving along in your VW Passat and abruptly, a yellow light illuminates on your dash and says "Check Engine". If you’re like most VW owners, your heart sinks a little because you have little idea about what that light is trying to tell you or how you should react. The fear of the unknown (or the cost of the unknown) can be just as stressful. But take a deep breath and realize the light coming on doesn’t mean you have to pull the car over to the side of the road and call a tow truck, but it is recommended that you get your 2012 VW Passat checked as soon as attainable. Ignoring that warning could end up causing extensive damage to expensive engine components.

When your 2012 VW Passat's ECM (electronic control module), which is the vehicle's onboard computer, finds a problem in the electronic control system that it can’t good, a computer turns on your check engine light. This amber or yellow light is customarily labeled “check engine” or “service engine soon”, or the light may be nothing more than a picture of an engine, or a picture of the engine with the word “check.”

When the light turns on, the ECM stores an engine code or “trouble code” in its memory that identifies as the issue, whether it's a sensor or a failing engine part. This code is read with an electronic scan tool that is used by our VW auto repair mechanics at Nalley Volkswagen of Alpharetta. There are also a number of relatively bargain code readers that are designed for do-it-yourselfers, should you select that route too. While this code will tell you the issue that is detected, a true diagnosis still requires an experienced expert to mean the issue and repair it.

How many miles can you drive with the check engine light?

Since all check engine code has its own level of severity, it is rigorous to predict how many miles you can drive with the warning light on. If you check engine light is glaring, we recommend that you pull over and contact Nalley Volkswagen of Alpharetta to aid mean if your vehicle is safe to drive in or if we recommend a tow truck. The safest bet is to decipher the code and then plan your strategy accordingly. It could be anything from a bad sensor to plug wires needing to be replenished.

Will the check engine light reset itself?

The check engine light on your 2012 VW Passat will usually shut itself off if the issue or code that caused it to turn on is revamped. For example, if the cause of your check engine light coming on was a loose gas cap, if it's tightened, the light will turn itself off. Likewise, if your catalytic converter is going persistent, and you did a few of stop-and-go driving, that may have turned on the check engine light due to the high usage of the converter. In most cases, your 2012 VW Passat light will go off after about 20-40 miles. If you drive over that amount and the light is still on, you will need to bring it in to Nalley Volkswagen of Alpharetta so the light and code can be double-checked and reset.

2012 VW Passat Check Engine Light

If the check engine light in your 2012 VW Passat starts flashing, that means that the problem needs immediate attention and your VW should be brought in immediately. A flashing light expresses that the problem is extraordinary and if not taken care of immediately may result in enormous wear and tear to the vehicle. This blinking light usually indicates a rigid engine misfire allowing unburned fuel to be dumped into the exhaust system. There it can rapidly surge the temperature of the catalytic converter to a point where damage is attainable, requiring an fancy repair. Some owners ask if spark plugs cause the check engine light to flash? This can precisely be the cause. A bad, old or dirty spark plug can cause the engine to misfire. If your check engine light is flashing, please contact our department of automotive experts at Nalley Volkswagen of Alpharetta immediately by calling 7706299081. If the problem is ignored or you continue to drive, this can spread to the spark plug wires, catalytic converter, or ignition coils which can lead to a very expensive repair.

2012 VW Passat Check Engine Light Codes

The check engine light turning on can be quite intimidating to see that tiny light on your vehicle’s dashboard abruptly illuminates, but in reality, it is not something that should cause you to shut down in fear honest away. If you hear the term, diagnostic trouble codes (DTC), these are just another name for check engine light codes. These are automotive computer codes stored by the ECM, also known as the OBD (on-board computer diagnostic system) in your Passat. There are hundreds of other codes that your check engine light can suggest. While that sounds daunting, with a tiny patience, tackling crucial diagnostics will give you beneficial knowledge about your automobile and will also allow that Check Engine Light to do what it is really supposed to do: be your guide. Unfortunately, discernible and helpful automobile symptoms do not always accompany an illuminated Check Engine Light. Since there are hundreds of potential OBD codes, there are also hundreds of potential reasons for the light, including:

  • Ignition system faults
  • Computer output circuit issues
  • O2 Sensor
  • Loose Gas Cap or Missing Gas Cap
  • Bad Spark Plugs
  • Emissions controls issues
  • Fuel and air metering systems problems
  • Transmission issues
  • Old Battery

This is why it is central for someone who does not have a lot of automotive knowledge to not assume what a code means. When your check engine light comes on, you should get it checked out immediately by a certified VW mechanic. Call Nalley Volkswagen of Alpharetta at 7706299081 today or schedule your check engine light service online today! If the engine light comes on due to a precarious concern, you risk damaging your car extra by not repairing the issue prudent away.

What could cause the check engine light to come on in a 2012 VW Passat?

When your check engine light comes on, this could be as uncomplicated as tightening or replacing your gas cap. Likewise, the check engine light could also be a warning of a risky problem that could cause risky damage to your engine and come with a colossal repair bill. Depending on your make and model, the check engine light will illuminate or blink. A steady glow generally means something fewer risky but a blinking check engine light indicates that your vehicle’s engine is in risky trouble and service is needed rapidly. If your check engine light is blinking in your 2012 VW Passat, we very suggest not to drive the vehicle and schedule VW service today. Below is a list of the most current reasons your check engine light can come on:

  • One of the most natural and frequent cause is that your 2012 VW Passat gas cap is loose, damaged or missing. The gas cap for your 2012 VW Passat serves multiple purposes. It prevents gas fumes from being released when you aren't driving, it seals the fuel system and helps maintain pressure within the fuel tank. What happens if you have a bad fuel cap? If your gas cap is former or has a ruptured seal, you can lose fuel through evaporation which will result in more trips to the pump. Luckily, to replace a gas cap isn't expensive. If your check engine light turns on swiftly after you put gas in your 2012 VW Passat, first thing you should check is to make hopeful the cap isn’t loose — or that it's still on your car’s roof or at the fuel pump.
  • New Spark Plugs or Plug Wires are necessary for your 2012 VW Passat. The spark plugs are the part of your engine that ignites the air/fuel mixture in the combustion chamber of your car. This explosion is what moves the pistons and makes the engine run. The spark plug wires deliver the spark from the ignition coil to the spark plugs. If your spark plugs or spark plug wires are bad or former, you will experience poor performance and reduced power. In some extreme cases, your engine will have trouble starting or continuing to run. Worn spark plugs and plug wires can cause clogged catalytic converter or break to ignition coils and O2 sensors, major to more expensive repairs.
  • Your 2012 VW Passat has a vacuum leak. Every VW Passat has a vacuum system that performs a wide variety of functions. The vacuum system also helps lower damaging emissions by routing the fumes as gasoline evaporates through the engine. If you notice that your RPM is high in idle or randomly surges, a vacuum leak could be the cause. Over time, vacuum hoses can dry out and crack, hugely if they’re exposed to forceful heat or extreme cold.
  • Your catalytic converter is bad or going bad. The catalytic converter is a part of your 2012 VW Passat’s exhaust system. The catalytic converter's function is to turn the carbon monoxide created by the combustion process into carbon dioxide. A damaged catalytic converter is usually caused by neglected maintenance, which is why Nalley Volkswagen of Alpharetta offers a complimentary multi-point inspection with every VW service. If you have an issue with your catalytic converter and don't get it repaired, your 2012 VW Passat will not pass an emissions test, show a lack of engine performance and will negatively affect your fuel economy. Your car may run at a higher temperature, too, which can cause different problems from overheating.
  • Issues with each aftermarket items. An aftermarket alarm, exhaust or different item can wreak havoc on your 2012 VW Passat if it’s not installed properly. These aftermarket elements and accessories can eject the battery, trigger the check engine light, or even prevent the car from starting. If these issues sound aware, bring your Passat to VW and have our team of certified mechanics ensure that your aftermarket items were installed perfectly and aren't causing each issue. Getting accessories, hugely aftermarket parts and accessories, or using OEM elements first place might cost a scant bit more but could save you money from having to get poor work and break caused by poor installation work corrected.
  • Your mass airflow sensor (known as MAF) needs to be replaced. The mass airflow sensor in your VW Passat is what determines how much fuel is necessary to run your engine efficiently by measuring the fee of air entering the engine. As a part of the engine management system, the mass airflow sensor helps adjust to specific changes, like altitude. If your VW Passat is having trouble starting, idling rough or has a speedy change in the position of the throttle pedal, this could be a sign of a bad mass airflow sensor.
  • The battery is low or dead. The battery in your 2012 VW Passat is every numerous. Without a car battery, your car won’t start, light up the road ahead, play the radio or charge your phone. Today’s car batteries last much longer than they did numerous decades ago, and they don't really require maintenance. The cost of a new one depends on the type of VW you drive, but check our existing service coupons and specials.
  • Your O2 Sensor (Oxygen Sensor) needs to be replaced. The Oxygen sensor, known as the O2 sensor, measures the fee of oxygen in your exhaust system. If there is excess oxygen in your exhaust system, fuel burns faster and your car will be less functional when it comes to fuel economy. So what happens if I don’t replace your O2 sensor? A faulty sensor can not only affect your miles per gallon, but it can cause break to your catalytic converter and your 2012 VW Passat's spark plugs. The O2 sensor sends data to the vehicle’s onboard computer to suggest the proper mixture of air and fuel that enters the cylinders in your engine. A bad O2 sensor can also cause a car to fail an emissions test.

How much does it cost to get the engine light checked?

The check engine light warns of issues ranging from a gas cap that's not correctly tightened to a more unhealthy failure like a bad catalytic converter or a problem with one of the car's oxygen sensors, so it satisfactory to get the practical code reading and diagnosis. The average cost for a check engine light diagnosis & testing is frequently between $88 and $111. The satisfactory news, Nalley Volkswagen of Alpharetta offers complimentary multi-point inspections and free diagnostics, in most cases, to help choose the cause of your check engine light.

2012 VW Passat Check Engine Light Flashing

Although there are countless ability causes of an illuminated Check Engine Light, we know from years of providing Check Engine Light Diagnosis Service that there are several prevailing causes including something as agreeable as a loose gas cap. Further prevailing reasons for a Check Engine Light are damaged oxygen sensor, dirty mass airflow sensor, faulty head gasket, faulty emissions control part, a malfunction with the fuel injection system, or defective spark plugs to name a few. No matter what is the root cause of the Check Engine Light, we have the VW Certified Mechanics and the certified service protocol to isolate the root problem and repair it as needed to restore factory specifications. When this happens, the Check Engine Light turns off, and you can leave the service center knowing that your VW issue was fixed.

Every 2012 VW Passat was designed with a high-technology performance monitoring system with a computer, and a series of sensors positioned strategically throughout the vehicle on its difficult systems. The sensors are often detecting conditions while sending data to the electronic control squad. If the electronic control squad detects that the data is out of factory specifications, the Check Engine Light illuminates telling you that there is a problem. However, that is the limitation of the Check Engine Light – it won’t tell you what entirely is wrong nor what to do about it. That’s where we come in; Nalley Volkswagen of Alpharetta provides a Check Engine Light Diagnosis Service that isolates the core problem and gives you a recommendation on what to do next from a Highly Qualified Service professional.