A steady glow typically means something less serious but a flashing check engine light indicates that your vehicle’s engine is in serious trouble and service is needed immediately. Early systems (Motronic 1.1 only, I think) flash the fault codes automatically. These are automotive computer codes stored by the ECM, also known as the OBD (on-board computer diagnostic system) in your 325i. I can’t get on the freeway since it doesn’t go over 45 mph. BMW low coolant warning typically comes on due to the low coolant level in the engine bay's expansion tank. If you don't have a BMW scan tool, have a shop specializing in BMWs read the codes and troubleshoot the problem for you. Structure My Deal tools are complete — you're ready to visit Nalley BMW of Decatur! If you have other problems, a generic OBD2 scanner will not read and clear the codes. SES light doesn't always mean there is a major engine problem. There are hundreds of problems that may trigger the check engine or service engine soon in a BMW. I have a check engine light in my 2004 325ci BMW. If your check engine light is on in your BMW 325i, contact Nalley BMW of Decatur. 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. 1606 Church Street If you hear the term, diagnostic trouble codes (DTC), these are just another name for check engine light codes. 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. A common problem BMW owners may face is the car alarm going off at random times or in the middle of the night. Have checked by your BMW Service as soon as possible. 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. 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. In some extreme cases, your engine will have trouble starting or continuing to run. Get Driving Directions. With that being said, the check engine light can mean a variety of different things. It also doesn’t accelerate like it used to. The CEL light will reset itself in a few driving cycles, typically within a day or two. It returns right away; in other cases, it can take a day or two. 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. Contact Nalley BMW of Decatur today! There is a difference between BMW Check Engine Light vs. Service Engine Soon. Your BMW check engine light will turn on for many different reasons. 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. Now I have been driving it like that to and from work. About a $1,400 repair. Every BMW 325i has a vacuum system that performs a great variety of functions. If the BMW drives fine, closely monitor the engine temperature. The car usually goes into limp mode to prevent further damage. This light illuminates in either an amber or red color and is part of the diagnostics system found on your vehicle. The price of a new one depends on the type of BMW you drive, but check our classic. Vehicle status check yielded all systems OK. Brought it to the dealership this morning (under CPO). It shakes all the time but mostly when I am stopped at a red light or when I try to go over 40mph. ... on my 2001 325I my red oil warning light flashes or comes on when i press on the brakes. This blinking light usually indicates a severe engine misfire allowing unburned fuel to be dumped into the exhaust system. The battery is scanty or dead. 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. Every BMW 325i was designed with a high-technology performance monitoring system with a computer, and a series of sensors positioned strategically throughout the vehicle on its crucial systems. It keeps track of all routine maintenance and servicing requirements of your BMW. Half Yellow 1/2 'check engine' light indicates an engine-related problem that will affect the power output. It could be anything from a bad sensor to plug wires needing to be replaced. If your BMW check engine light (or service engine soon light) stays on, it means that the Onboard Diagnostic System (also known as Digital Motor Electronics DME) has detected a problem with the emission system, engine, or transmission. The car travels a very short distance and has never really warmed up since the light came on. 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. The check engine light will begin to flash the code after about 3 seconds. Coolant level, oil level, washer fluid level all are all normal. Your car may run at a higher temperature, too, which can cause distinct problems from overheating. It comes and goes as it pleases and BMW has no fix for this issue. The battery in your BMW 325i is every difficult. Continuing to drive if your BMW check engine light continues to flash can lead to more serious and costly problems down the road. A glaring light indicates that the problem is compatible and if not taken care of immediately may result in … Reduce vehicle speed and have the system checked immediately. Half Check Engine Light. Each flash is separated by about 1 second. BMW Check Engine Light. Your mass airflow sensor (known as MAF) needs to be replaced. Keep in mind that models for the US market usually have a 'Service engine soon' light instead. The red check engine light is an indiccator that something is amiss under the hood. The check engine light on your BMW 325i will usually shut itself off if the issue or code that caused it to turn on is fixed. If you’re like most BMW 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. 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. The Oxygen sensor, favored as the O2 sensor, measures the deposit of oxygen in your exhaust system. There are hundreds of different codes that your check engine light can represent. 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. This explosion is what moves the pistons and makes the engine run. Luckily, to replace a gas cap isn't pricey. The main purpose of auto Start/Stop is to save fuel. Connect scan tool to the 16-pin data link connector (DLC) located underneath the steering column. 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. 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