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

Since each check engine code has its own level of severity, it is usually difficult to predict how many miles you can be secure in driving with the warning light on. It could be anything from a bad sensor to plug wires needing to be replaced. The safest bet is to decipher the code and then plan your strategy accordingly. If you check engine light is flashing, we suggest that you pull over and contact Nalley BMW of Decatur to help determine if your vehicle is secure to drive in or if we suggest a tow truck.

Is it safe to drive your BMW M3 with the check engine light on?

This question is not exceptionally simple 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 safe to drive. This is generally indicated by a steady 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 serious problem. If the check engine light is flashing, this means that there is a serious issue and it is advised to service your BMW M3 expeditiously. Call the experts at Nalley BMW of Decatur by dialing 7706285694 so you can describe the issues. Or lessen your speed and bring your BMW to our certified mechanics as in the near future as possible.

BMW M3 Check Engine Light Codes

The check engine light turning on can be quite intimidating, especially to see that little light on your vehicle’s dashboard suddenly illuminate, but in reality, it is not something that should cause you to shut down in fear right 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 M3. There are hundreds of different codes that your check engine light can properly represent. While that sounds daunting, with a little patience, tackling basic diagnostics will give you advantageous knowledge about your car and will also allow that crucial Check Engine Light to do what it is genuinely supposed to do: be your guide. Unfortunately, clear and helpful car symptoms do not invariably accompany an illuminated Check Engine Light. Since there are hundreds of possible OBD codes, there are also hundreds of possible reasons for the light, including:

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

This is why it is critical for someone who does not have a lot of prevailing automotive knowledge to not assume what a code means. Call Nalley BMW of Decatur at 7706285694 today or schedule your check engine light service online today! If the engine light comes on due to a serious concern, you risk damaging your vehicle further by not repairing the issue right away. When your check engine light comes on, you should get it checked out expeditiously by a skillful certified BMW mechanic.

What could cause the check engine light to come on in a BMW M3?

When your check engine light comes on, this could be as simple as tightening or replacing your gas cap. Again, the check engine light could also be a warning of an essential problem that could cause serious damage to your engine and come with a hefty and expensive repair bill. Depending on your make and model, the check engine light will illuminate or blink. A steady and continuous glow generally means something less serious but a flashing check engine light signifies that your vehicle’s engine is in serious trouble and useful service is needed instantly. If your check engine light is flashing in your BMW M3, we remarkably advise not to drive the vehicle and schedule BMW service today. Below is a list of the most common reasons your check engine light can come on:

  • Your O2 Sensor (Oxygen Sensor) needs to be replaced. The Oxygen sensor, known as the O2 sensor, measures the amount of oxygen in your exhaust system. If there is excess oxygen in your exhaust system, fuel burns more promptly and your car will be less efficient when it comes to fuel economy. So what happens if I don’t replace your O2 sensor? A defective sensor can not only affect your miles per gallon, but it can cause significant damage to your catalytic converter and your BMW M3's spark plugs. The O2 sensor sends data to the vehicle’s onboard computer to determine the exactly correct combination of air and fuel that enters the cylinders in your engine. A defective O2 sensor can also cause a car to fail an emissions test.
  • Your mass airflow sensor (known as MAF) needs to be replaced. The mass airflow sensor in your BMW M3 is what determines how much fuel is necessary to run your engine efficiently by measuring the amount of air entering the engine. As a part of the engine management system, the mass airflow sensor helps adjust to certain changes, like altitude. If your BMW M3 is having trouble starting, idling rough or has a sudden speedy change in the position of the throttle pedal, this could be a crucial sign of a defective mass airflow sensor.
  • Your catalytic converter is bad or going bad. The catalytic converter is a part of your BMW M3’s exhaust system. The catalytic converter's function is to turn the carbon monoxide created by the combustion process into carbon dioxide. A broken catalytic converter is usually caused by invariably neglected maintenance, which is why Nalley BMW of Decatur offers a free multi-point check with each BMW service. If you have an issue with your catalytic converter and don't get it repaired, your BMW M3 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 other dangerous problems from overheating.
  • New Spark Plugs or Plug Wires are necessary for your BMW M3. The spark plugs are the part of your engine that ignites the air/fuel combination in the combustion chamber of your car. This explosion is what moves the pistons and makes the engine run smooth. 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 old, you will experience a evident 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 damage to ignition coils and O2 sensors, leading to more pricey repairs.
  • Your BMW M3 has a vacuum leak. Each BMW M3 has a vacuum system that performs a wide variety of functions. The vacuum system also helps lower unhealthy 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, exceptionally if they’re exposed to intense heat or extreme cold.
  • Issues with any aftermarket items. An aftermarket alarm, exhaust or other item can wreak extreme havoc on your BMW M3 if it’s not installed correctly. These aftermarket components and accessories can drain the battery, trigger the check engine light, or even prevent the car from starting. If these issues sound familiar, bring your M3 to BMW and have our team of gifted certified mechanics make sure that your aftermarket items were installed perfectly and aren't causing any issue. Getting accessories, exceptionally aftermarket parts and accessories, or utilizing OEM components first place might cost a little bit more but could help you save considerably from having to get poor work and damage caused by poor installation work corrected.
  • The battery is low or dead. The battery in your BMW M3 is each essential. 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 a few decades ago, and they don't really require maintenance. The price of a new one depends on the type of BMW you drive, but check our current service coupons and specials.
  • One of the most common and frequent cause is that your BMW M3 gas cap is loose, broken or missing. The gas cap for your BMW M3 serves numerous purposes. It prevents dangerous 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 defective fuel cap? If your gas cap is old or has a ruptured seal, you can lose fuel through evaporation which will result in more trips to the pump and be more expensive. Luckily, to replace a gas cap isn't pricey. If your check engine light turns on rapidly after you put gas in your BMW M3, first thing you should check is to make sure the cap isn’t loose — or that it's still on your car’s roof or at the fuel pump.

Will the check engine light reset itself?

The check engine light on your BMW M3 will frequently shut itself off if the issue or code that caused it to turn on is fixed. For instance, if the cause of your check engine light coming on was a loose gas cap, if it's tightened, the light will immediately turn itself off. Still, if your catalytic converter is working perfectly, and you did a lot 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 BMW M3 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 BMW of Decatur so the light and code can be double-checked and reset.

BMW M3 Check Engine Light Flashing

Although there are countless potential causes of an illuminated Check Engine Light, we know from years of providing Check Engine Light Diagnosis Service that there are several common causes including something as simple as a loose gas cap. Other generally common reasons for a Check Engine Light are faulty emissions control part, dirty mass airflow sensor, damaged oxygen sensor, a malfunction with the fuel injection system, damaged head gasket, or broken spark plugs to name a few. No matter what is the root cause of the Check Engine Light, we have the BMW Certified Mechanics and the certified service protocol to isolate the root problem and completely 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 BMW issue was totally fixed.

Every BMW M3 was designed with a high-technology performance monitoring system with a computer, and a series of sensors positioned strategically throughout the car on its important systems. The rapid sensors are continually detecting conditions while sending vital data to the electronic control unit. If the electronic control unit detects that the data is out of factory specifications, the Check Engine Light illuminates telling you that there is a problem. Nonetheless, unfortunately that is the limitation of the Check Engine Light – it won’t tell you what precisely is wrong nor what to do about it. That’s where we come in; Nalley BMW of Decatur provides a Check Engine Light Diagnosis Service that isolates the core problem and gives you a recommendation on what to do next from a Remarkably Qualified Service professional.

BMW M3 Check Engine Light

A flashing light signifies that the problem is tremendously serious and if not taken care of expeditiously may result in major and significant damage to the vehicle. If the check engine light in your BMW M3 starts flashing, that means that the problem needs attention expeditiously and your BMW should be brought in immediately. This blinking light frequently reveals a severe engine misfire allowing unburned fuel to be dumped into the exhaust system. There it can swiftly raise the temperature of the catalytic converter to a point where damage is likely, requiring an expensive and far-reaching repair. Some owners ask if spark plugs cause the check engine light to flash? This can explicitly be the cause. A faulty, old or dirty spark plug can cause the engine to misfire. If your check engine light is consistently flashing, please contact our team of automotive experts at Nalley BMW of Decatur immediately by calling 7706285694. If the problem is completely ignored or you continue to drive, this can spread to the spark plug wires, catalytic converter, or ignition coils which can lead to a exceedingly pricey repair.

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 accurately tightened to a more serious failure like a bad catalytic converter or a problem with one of the car's oxygen sensors, so it good to get the proper code reading and diagnosis. The average cost for a check engine light diagnosis & testing is generally between $88 and $111. The good news, Nalley BMW of Decatur offers entirely complimentary multi-point inspections and free diagnostics, in most cases, to help determine the cause of your check engine light.

What Does the Check Engine Light Mean?

One of the most usually misunderstood lights or indicators in your BMW M3 is the check engine light. The check engine light is part of the important onboard diagnostics system, and displays in a variety of 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 BMW M3. Some of these essential duties include shifting automatic transmissions ignition timing, controlling engine speed, and implementing stability control, just to name a few. With that being said, the check engine light can mean an assortment of different things. It can be as simple as your gas cap being loose or as perilous as engine knocking. If your check engine light is on in your BMW M3, contact Nalley BMW of Decatur. Our BMW service department can help you find out what code is turning your check engine light on or diagnose why your check engine light is flashing. Contact Nalley BMW of Decatur today!

Check Engine Light Service BMW M3

What do you do when you’re driving along in your BMW M3 and suddenly, a yellow light illuminates on your dash and says "Check Engine". If you’re like most BMW owners, your heart sinks extremely because you may have definitely 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, peaceful 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 BMW M3 checked rapidly. Ignoring that warning could end up causing major, considerable damage to costly engine components.

When your BMW M3's ECM (electronic control module), which is the vehicle's onboard computer, finds a problem in the electronic control system that it can’t correct, a computer turns on your check engine light. This amber or yellow light is typically 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 can immediately identify 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 BMW auto repair mechanics at Nalley BMW of Decatur. There are still a number of comparatively inexpensive 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 professional to determine the definitely correct issue and repair it.