The P0172 DTC means that the car’s computer has determined that the fuel system is running too rich. The alert was set off on Bank 1. A rich-running system means that there’s either too much fuel or a lack of oxygen in the air-fuel mixture. Bank 1 indicates it’s located on the side that contains the #1 cylinder. Dealer and BMW agreed first of last week to order another car and substitute collateral on the lease. Take about 3/4 weeks for new car to get here. No discussion and no problem. Two days later, the service dept called and said they found the problem. Bad ground wire, which was in one of the battery modules. I'll check this out further. One thing you can try is to reset the main computer. Look to a service guide or repair manual for specific instructions on how to do that. The computer may have run out of the battery power used to store important information. If this isn’t computing correctly, the engine will sense a problem and trigger limp mode. If there is no power, your alternator has failed. When this happens, the car may start and run if jump-started, but as soon as the jumper cables are disconnected, the car dies. 3. Noise. A failing alternator [1] will start to make a loud whining noise at idle, and the whining noise will increase with engine speed. Drives: F15 X5 35d. Join Date: Oct 2017. Location: Oklahoma. iTrader: ( 0) You'll need to replace the air suspension bag, its most likely developed a slow leak. The air pump for the air suspension will try to compensate till either the car. --Enters a deep sleep (15-20 mins after lock) --Battery in reserves. Here is a more detailed list of the signs of a bad or clogged diesel particulate filter (DPF) to look for: 1. Check Engine Light. The first, and most common sign of a bad DPF is a check engine light on your dashboard. The diesel particulate filter uses sensors to measure the pressure and temperature before and after the DPF filter. BO8oi. Seized Engine Symptoms. 1. Engine Doesn’t Start. When the engine seizes, the car might not start. You should still be able to turn the car on and run the electronics, such as the heater fan, lights, and radio. However, cranking the engine will produce no action. Here is a more detailed list of the signs of a bad or clogged diesel particulate filter (DPF) to look for: 1. Check Engine Light. The first, and most common sign of a bad DPF is a check engine light on your dashboard. The diesel particulate filter uses sensors to measure the pressure and temperature before and after the DPF filter. 8. Clogged oil filter, and failed bypass value. A clogged oil filter and a failed bypass valve are two possible causes of the low oil pressure warning light turning on in your BMW X5. The oil filter is responsible for removing contaminants from the engine oil, and over time it can become clogged with debris. One of the most acknowledged car problems is a dead battery. But when does your BMW X5 battery need to be replaced? Here are a few symptoms that may indicate your X5 battery needs to be looked at by a BMW mechanic or replaced. Low Battery Fluid Level - if the fluid level is low, you need to have the battery and charging system tested. If your BMW battery is low, the first indicator might be a “low battery” warning message on your dashboard. Other BMW low battery symptoms might include: Dim headlights: If your headlights are dimmer than usual, it might be because the battery isn’t providing enough power. Slow engine crank: If it takes longer than normal for your engine The vehicle’s electrical system relies on a 12-volt battery to power the lights, radio, and other electrical components. If the 12-volt battery is failing or not charging properly, it can cause a drop in voltage, triggering the warning message. Here are some potential causes of low voltage and how to fix them: Failing 12-volt battery

bmw x5 low battery symptoms