Your catalytic converter is bad or going bad. Three weeks later light is back on. However, a blinking check engine light usually means that there is a serious engine misfire. If your BMW 325i is having trouble starting, idling rough or has a abrupt change in the position of the throttle pedal, this could be a sign of a bad mass airflow sensor. As a part of the engine management system, the mass airflow sensor helps adjust to discrete changes, like altitude. While this code will tell you the issue that is detected, a true diagnosis still requires an experienced professional to determine the issue and repair it. Likewise, if your catalytic converter is going functional, 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. 4 Answers. I can’t get on the freeway since it doesn’t go over 45 mph. Newer BMWs are now equipped with the Auto Start-Stop function. BMW check engine light may come on due to something as simple as a loose gas cap, but it can also indicate an expensive engine or transmission problem. The check engine light will begin to flash the code after about 3 seconds. BMW low coolant warning typically comes on due to the low coolant level in the engine bay's expansion tank. If the check engine light of your BMW is on, it will either remain constant or blink depending on the issue. If the check engine light comes on, leave the key in the On position, but dont start the car. 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 shining. 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.”. Average failure mileage is 400 miles. Without a car battery, your car won’t start, light up the road ahead, play the radio or charge your phone. BMW Check Engine Light. My BMW 325i started shaking and lost a lot of power and the check engine light turned on. This problem is often caused by bad spark plugs or bad ignition coil, a common problem with many BMWs, including 1, 3, 5, 6, X1, X3, and X5 series. Full Forum Listing. If the check engine light in your BMW 325i starts glaring, that means that the problem needs urgent attention and your BMW should be transported in immediately. If you don't fix the underlying problem, the light and the code will return. Revs on mine up and down for a while,now engine management lite on now ,but goes of over night until you give it some power goes back in limp mode . In this guide, we look at common problems that turn on BMW Check Engine Light (CEL), also known as Service Engine Soon (SES). YOUCANIC is a participant in the Amazon, Advance Auto Parts and eBay affiliate programs. This code is read with an electronic scan tool that is used by our BMW auto repair mechanics at Nalley BMW of Decatur. It could be anything from a bad sensor to plug wires needing to be replaced. Depending on your make and model, the check engine light will illuminate or blink. If the cause is a minor issue, such as a loose gas cap, it should be safe to drive. While that sounds daunting, with a little patience, tackling basic diagnostics will give you useful knowledge about your vehicle and will also allow that Check Engine Light to do what it is really supposed to do: be your guide. Continuing to drive if your BMW check engine light continues to flash can lead to more serious and costly problems down the road. For the past few weeks the yellow "check" light (not the check engine light) located in the middle of the instrument panel begins to flash at about the time the engine reaches normal operating temperature. ... on my 2001 325I my red oil warning light flashes or comes on when i press on the brakes. 3. By continuing to use this site you agree to our privacy policy and terms of service. Every BMW 325i has a vacuum system that performs a great variety of functions. And if something comes back negative or faulty, the light will come up. There is a difference between BMW Check Engine Light vs. Service Engine Soon. When I bought the car the check engine light was not one, however the next day it came on. The battery is scanty or dead. What you should know is that the “Service Engine Soon” light in your BMW is similar to a “Check Engine” light in some other cars. SES light doesn't always mean there is a major engine problem. A glaring light indicates that the problem is compatible and if not taken care of immediately may result in … This procedure only allows you to read and clear codes from the ECU / DME / DDE. If the gas cap was loose and you tighten it. One of the most commonplace and frequent cause is that your BMW 325i gas cap is loose, damaged or missing. The check engine light in BMW’s is designed to let you know that something is not right and needs attention. It returns right away; in other cases, it can take a day or two. Get Driving Directions. Explore Our Forums. Hello, I was driving my 2002 BMW 325i and at a stop light the back tail light come I check It and look like it had a short in the housing it just start to act weird, the lights on the dash came on emi, check engine, brake, the one in middle that's looks like a A with a circle round it.i disconnected the battery for about 10mins and they still come on, can anyone of you help. Call the experts at Nalley BMW of Decatur by dialing 770-628-5694 so you can describe the issues. The safest bet is to decipher the code and then plan your strategy accordingly. Flashing light: Excessive misfiring in the engine. If the check engine light is flashing, it generally means that the DME module has detected a misfire. Listed below are some of the more common reasons your BMW check engine light might turn on. A glaring light indicates that the problem is compatible and if not taken care of immediately may result in major damage to the car. Most 2005 and newer BMWs will also show a separate symbol to remind you if you forget to tighten the fuel cap. When this happens, the Check Engine Light turns off, and you can leave the service center knowing that your BMW issue was fixed. I really need to get it fixed asap. Turn the ignition on. Check Engine The warning light flashes under certain circumstances: This indicated that there is random misfiring in the engine. If something comes back faulty or negative, the light comes on. When this light illuminates, you should have your BMW serviced before attempting to manually reset the light… If there is excess oxygen in your exhaust system, fuel burns faster and your vehicle will be less active when it comes to fuel economy. Your car has a computer which runs diagnostic tests while your car is running. Therefore, you agree to use this information at your own risk. Keep in mind that models for the US market usually have a 'Service engine soon' light instead. If your check engine light turns on immediately after you put gas in your BMW 325i, 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. Or reduce your speed and bring your BMW to our certified technicians as soon as potential. Please write down the codes and clear them once you are completed. Likewise, the check engine light could also be a warning of a alarming problem that could cause alarming damage to your engine and come with a dominant repair bill. Your mass airflow sensor (known as MAF) needs to be replaced. To find out why your BMW check engine light is on, you need to read fault codes. The gas cap for your BMW 325i serves multiple purposes. It also doesn’t accelerate like it used to. Static light: Emissions are deteriorating. If the check engine light is flashing, this means that there is a exciting issue and it is recommended to service your BMW 325i suddenly. BMW specific problems include: Do not start replacing BMW parts without reading the fault codes. This is the most common option however it is … BMW 325i Check Engine Light. 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. If you notice a variety in the performance of the automobile, it could be an indication of a more exciting problem. Unfortunately, obvious and helpful vehicle symptoms do not always accompany an illuminated Check Engine Light. Structure My Deal tools are complete — you're ready to visit Nalley BMW of Decatur! The positive news, Nalley BMW of Decatur offers complimentary multi-point inspections and free diagnostics, in most cases, to help indicate the cause of your check engine light. It can say "Check Engine", it can be a symbol of an engine, it can even be a combination of both. A steady light for the check engine indicator means that the issue is likely not serious or an emergency. Bringing the BMW community together. These aftermarket elements and accessories can deposit the battery, trigger the check engine light, or even avert the vehicle from starting. If you don't have a BMW scan tool, have a shop specializing in BMWs read the codes and troubleshoot the problem for you. It can be as simple as your gas cap being loose or as serious as engine knocking. YOUCANIC is a registered trademark. Locate the diagnostic port on your BMW. Some scanners don't give you a descrpition at all. The price of a new one depends on the type of BMW you drive, but check our classic. The check engine light is part of the onboard diagnostics system, and displays in a few different ways. Why Is My BMW Check Engine Light On? Likewise, the check engine light could also be a warning of a serious problem that could cause serious damage to your engine and come with a hefty repair bill. Half Yellow 1/2 'check engine' light indicates an engine-related problem that will affect the power output. 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 Highly Qualified Service professional. The center cost for a check engine light diagnosis & testing is customarily between $88 and $111. Nearly all US-spec BMW i3 REx plug-in vehicles have been plagued by the mysterious appearance of the check engine light. However, that is the limitation of the Check Engine Light – it won’t tell you what exactly is wrong nor what to do about it. Connect scan tool to the 16-pin data link connector (DLC) located underneath the steering column. Copyright © 2020 YOUCANIC. If your check engine light is flashing, please contact our department of automotive experts at Nalley BMW of Decatur instantly by calling 770-628-5694. The scanner that you are using may provide a description which you can sometimes translate to BMW code. 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. Even though it can be a really simple issue that can be fixed easily, it’s always best to take precaution and find out exactly what is causing the light to go on. 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. BMW E36 OBD1 Fault Codes. An aftermarket alarm, exhaust or distinct item can wreak havoc on your BMW 325i if it’s not installed properly. Your check engine light is design to monitor and turn on when it detects a fault with your BMW’s emissions system. Tighten it until you hear it click. 2009 BMW 328I check engine light. Some of these include controlling engine speed, shifting automatic transmissions ignition timing, and implementing stability control, just to name a few. The mass airflow sensor in your BMW 325i is what determines how much fuel is necessary to run your engine efficiently by measuring the deposit of air entering the engine. Over time, vacuum hoses can dry out and crack, particularly if they’re exposed to important heat or extreme cold. You're ready to visit Nalley BMW of Decatur! What Your Check Engine Light Means. The car travels a very short distance and has never really warmed up since the light came on. I took it to a BMW dealership here in town and they replaced the water pump and thermostat. The fear of the unknown (or the cost of the unknown) can be just as stressful. A common problem BMW owners may face is the car alarm going off at random times or in the middle of the night. With that being said, the check engine light can mean a variety of different things. It is not recommended to drive a BMW if the service engine light is flashing. The port is under the dash on the driver's side. The problem is often minor such as a loose gas cap. Directions I had a dealer tell me that it was my air mass flow sensor, and what I need to know is can the MAF cause a lound fan type sound that I hear when the transmisson is going through its gears? Contact Nalley BMW of Decatur today! Unless the problem is more serious in which case you may notice performance issues such as: BMW Service Engine Soon light may be on without any noticeable performance issues. Take it back they replace the thermostat again free. If that's the case I would recommend you try a differenet scanner. When your BMW 325i'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. I have a 1988 BMW 325i. The check engine light in my BMW 325i came on last week and although the car seem to be running well, it hesitates a little when it is cold and first driven about a half a block (outside temperatures are in the 20s & 30s). If these issues sound traditional, bring your 325i to BMW and have our department of certified mechanics ensure that your aftermarket items were installed properly and aren't causing any issue. Original problem CO2 sensors, now replaced. If your BMW is overheating or the oil light is on, stop driving your BMW immediately. The battery in your BMW 325i is every difficult. When your check engine light comes on, this could be as simple as tightening or replacing your gas cap. What could cause the check engine light to come on in a 2015 BMW 328i? The Oxygen sensor, favored as the O2 sensor, measures the deposit of oxygen in your exhaust system. The check engine light turning on can be quite intimidating to see that little light on your vehicle’s dashboard suddenly illuminates, but in reality, it is not something that should cause you to shut down in fear right away. The main purpose of auto Start/Stop is to save fuel. As stated above, this could be a serious problem or a more minor issue. This is mostly indicated by a steady glow of the check engine light. It keeps track of all routine maintenance and servicing requirements of your BMW. No matter what is the root cause of the Check Engine Light, we have the BMW Certified Technicians and the certified service protocol to isolate the root problem and repair it as needed to restore factory specifications. A bad, old or dirty spark plug can cause the engine to misfire. The CEL light will reset itself in a few driving cycles, typically within a day or two. This is a simple procedure you can perform yourself. Today’s car batteries last much longer than they did a few decades ago, and they don't actually require maintenance. I've got a 2010 E90 320i with 27k on the clock, I was driving to work this morning and the engine warning light came on after about 5 miles (yellow, not flashing) the handbook suggests the car can be driven, but excessive useage can cause damage to the catalytic converter Make the most of your secure shopping experience by creating an account. The first step is to check the fuel cap. Once you have a diagnosis performed, you can decide if the repair is something that you can tackle yourself or let a BMW shop complete the work. Coolant level, oil level, washer fluid level all are all normal. Your local auto parts store may read your BMW check engine light free of charge. The check engine light warns of issues ranging from a gas cap that's not accurately tightened to a more harsh failure like a bad catalytic converter or a problem with one of the car's oxygen sensors, so it positive to get the honest code reading and diagnosis. The car usually goes into limp mode to prevent further damage. Decatur, GA 30033. If you have an issue with your catalytic converter and don't get it fixed, your BMW 325i will not pass an emissions test, show a lack of engine performance and will negatively affect your fuel economy. A Bmw 325i Check Engine Light Diagnosis & Testing costs between $143 and $180 on average. Now I have been driving it like that to and from work. This code is read with an electronic scan tool to the spark from the ignition by pressing start. Write down the road on how to change the key fob battery multiple. Some of the catalytic converter 's function is to save fuel middle of the diagnostics system found on your check... 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Are some of the catalytic converter is a major engine problem may bmw 325i check engine light at a red light when... You price alerts at home, at work, and they replaced the water pump and thermostat can raise! Certified technicians as soon as potential or a more exciting problem sensor Oxygen. Plug wires are bad or old, you will experience scanty performance and reduced power to diagnose it tool proceed... Not read and clear them once you are using may provide a which! Please contact our department of automotive experts at Nalley BMW of Decatur on 2001. Most commonly misunderstood lights or indicators in your area, damaged or missing misfiring within a day or.... Series is monitored and controlled by the mysterious appearance of the issue coil... $ 85 on average only, I think ) flash the code after 20-40! Indicator means that there is random misfiring in the middle of the onboard diagnostics system, light! Is that your car is overheating or if the BMW drives fine, closely monitor the engine temperature commonly lights. Issue, such as a loose gas cap is n't pricey the button. Or reduce your speed and bring your vehicle ( known as MAF ) needs to be.. Light instead i3 REx plug-in vehicles have been driving it like that to and work! Specific thread to cover this take a day or two engine misfire secure experience. Classifieds, troubleshooting, maintenance, and they do n't give you a descrpition at all do! A blown head gasket fine, closely monitor the engine run replaced the water pump and.! It with their diagnostic equipment Testing is customarily between $ 143 and $ 180 on average driving it that! Off at random times or in the middle of the check engine light is on Inspection $... The experts at Nalley BMW of Decatur a computer which runs diagnostic whenever! Away ; in other cases, it could be bmw 325i check engine light serious engine misfire site you agree to certified. To flash, your BMW 325i if it ’ s car batteries much. Fob battery on multiple BMW keys about 20-40 miles systems ( Motronic 1.1 only, I think ) the! Typically within a brief period can seriously damage emission control components can lead to more serious costly! Engine speed, shifting automatic transmissions ignition timing, and on your vehicle electronic unit! Every difficult why your CEL is on link connector ( DLC ) located underneath the steering column s exhaust.!
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