I put the brand new beast battery from the M3 into the X5 and it slightly improved the lowest voltage possible at idle up into the mid to low 12's (still not satisfactory I think) and cruise RPM charging is still in the 13's usually around 13.7.. Maybe a little low.. Not much change, effected no other symptoms.. 08 4.8i X5 goes into Limp Mode. Just wanted to share my recent and very first time experiencing limp mode. Last Wednesday evening after leaving a friend's house, the car started up fine as usual then when I began to pull off I noticed immediately that something was wrong. These general instructions may vary depending on the diagnostic scanner model you use to troubleshoot BMW vehicles. Plug the OBD-II scanner into the diagnostic port under the dashboard. Turn on the ignition; don’t start the engine. Turn on the scanner and select your BMW chassis. Next, Select the Control Units menu.

In this situation, replacing your battery will usually solve the problem. 4 Symptoms of ECM Failure. There are a few things that can tip you off that there’s a problem. Here are the four most common symptoms of a bad ECM computer: The Check Engine Light is on. There are many reasons your Check Engine light can turn on.

Here are the codes I received. 385d - Alternator Bus Fault. 3792 - Engine Coolant system coolant pump speed outside of tolerance. 378F Electric coolant pump missing. 38A4 - Intelligent Battery sensor communication fault. 3446 BSD Message Oil Condition sensor missing.

3. Fuel Pump. If your BMW drivetrain malfunction drive moderately problem occurs when accelerating rapidly, it could be due to a fuel pump that isn’t delivering the required pressure for that experience. You might not get the warning under regular driving conditions. If it is only on a rapid acceleration profile, try to avoid situations where
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.
With ignition off if you have a lights or radio on after 2 min warning goes on "recharge battery" "battery is heavy discharged." I checked battery with load test- ok, check voltage on dash before starting engine and while cranking engine- never goes below 12V, maybe once went to 11.9V.
Troubleshoot & DIY. The BMW Footwell module (FRM) functions as a node. The FRM receives signals from a multitude of sensors. It controls mirrors, windows and lights. When the FRM malfunctions, the symptoms are quite disturbing for your driving experience. Read through if you want to know what the FRM does and how it interconnects.
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. Here are the six most common possibilities when there’s a boost leak. Let’s look at each one in more detail. 1. Turbo Lag. A turbocharger increases how much air fits into the cylinder, so performance and horsepower can also be increased. Before the turbo kicks in, the turbine has to spin fast. Our 2011 X3 35i, bought new, now at 102K miles, displayed the "BATTERY DISCHARGE." alert for a few weeks starting at 99K miles but the car always functioned normally. Finally had the dealer replace the battery and all's good since. EP BATTERY 92AH, FP-NUMBER 61-21-2-353-812: $271.03.
steeve. Dont get fobbed off, you obviously have a serious problem, unlikely to be battery. They need to check the alternator output etc, its easy for them to do this. The mileage you are doing is not a problem, leaving it for two or three weeks may be. So it turns out that the battery was failing.
Welcome to I.E. Euros. Hi, I am Francisco. We are a group of vehicle enthusiasts looking for Car meets, car shows, drag racing, roll racing, New cars, etc,.l ibinEW.
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