1998 bmw 528 when i am driving my battery light come on and cut off can't crank . check out found low battery , charing in full but car won't crank . jump start car will run . found fuse 15 7.5a under glove box burn i put a new fuse in there burn right away . check found short to alternator . replace alternator + fuse .
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Re: battary light on , engine cut off car won't crank
Sounds like it's your alternator, your alternator charges your battery and runs car once it is started. if you have a bad alternator your battery light will come on, and shortly after your vehicle will die, unable to restart without a jump. I would take your battery to autozone or an auto shop to have your battery and alternator tested.
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You have a Parasitic battery draw, hook up a meter and watch it as you remove fuses, when that draw goes away you have found the system of the car that is the problem. Most times it is a light left on like a vanity mirror light or trunk light, center console as well and glove box lights.
You have to have a scan tool. If you have tried that and codes come up as soon as you clear them, then their is a greater issue. Check the starter relay, disconnect it and clear codes and see if problem persists.
Possibly MAF - (Mass airflow sensor). Check and clean sensor and connection clamps. Google it for location on your engine/vehicle model. Test: with the engine running, spray carb cleaner around it lightly. if engine smoothes out, then you located your problem. You can find them on ebay.
Park neutral safety switch maybe be the reason for the no crank ! Try putting the vehicle in park ,then try to crank the engine . Testing the electrical circuit is the best way to trouble shoot this problem , along with do a voltage drop test on the starter circuit ! This will test the battery cables an connections . Starter Voltage Drop How to voltage drop test starter motor circuit
Does it have a manual or automatic transmission ? Manual ? clutch switch . Looking at a wiring diagram I also see a starter cut relay ! http://www.bbbind.com/free_tsb.html Free wiring diagrams . Enter vehicle info. year , make , model and engine size . Under system click engine , under subsystem click starting . Then click the search button , then click the blue link ! Check the starter cut relay also . Videos on youtube showing how to test a relay controlled circuit !
Do you mean it won't start, or won't crank. You should have a neutral safety switch between the key switch and the starter to prevent you from cranking the engine in drive or reverse. A defective switch would keep the engine from cranking. A mechanic would check for voltage at the starter on the wire from the key switch and go from there.
If it does turn over and electrical works, then the problem is unlikely the battery. You can try jump starting. If it cranks when jump-starting it may be a weak battery, starter motor or alternator, but I don't think that this is the problem.
Check if there is spark on all cylinders. Do a code scanning (this car is OBD1, you will need to do the scan at the dealer place or to find a BMW OBD1 tool- Universal OBD2 scanner will not work on a 1994 BMW). If the codes return misfire or mixture related errors check fuel pressure, check sensors and parts that determine the mixture (MAF/MAP, AIT, O2 sensors, IAC and EGR system), check the vacuum system for leaks and check the crank sensor.
Many newer cars computers have to see anywhere from 50-250 good trips without the original problem showing up. This doesn't mean crank, cut off, crank, cut off... It has to actually be driven through a drive cycle. Otherwise, you'll need a scan tool capable of erasing the codes, the cheaper ones may not do the trick.
Not sure what car you have because the title says M3 but the question says 528. Either way, this is actually somewhat normal for this car, but the positive camber gets more pronounced as the rubber suspension bushings get older and more stretched out of shape. Positive camber makes the car corner more solidly, but it does prematurely wear out the inside edge of the rear tires.
You can improve it by replacing the bushings. You can correct it completely by putting on adjustable control arms. Any performance BMW parts website will sell you the adjustable control arms.
Using tires with softer sidewalls will help a little with the uneven wear. A good choice for a 528, but you would not want to use low performance tires on an M3.
I have a matched pair of '97 328s. One has this problem and the other does not. After pricing new bushings and adjustable control arms, I went with the softer sidewall tire option.