R50/53 Not sure where to start looking
#1
Not sure where to start looking
I just recently finished putting in new clutch in my 03 s. I have test driven it with no problems. Today was first trip to town, I had been driving for a few minutes when I got low tire press light. shortly after I got a abs light then batt light, I ended up with all lights on. I figured out fairly fast that I was not charging as A/C turned off and dash started dyeing . In making a run for home I lost power steering also, I would think this would be normal for a dead battery. Got it back home,got a charge on battery went to go see if alt is making juice and starter will not turn over. heard it click once then wouldn't even click. Battery is showing good volts. Have I done something while putting in clutch I didn't realize? Am I just having a really bad day and lost the starter and the alternator ?? Any help or insight would be great !!
Tyler
Tyler
#6
checked grounds at battery and engine. Both showing good. Battery voltage is showing 12.5, this should be enough to crank engine? I can hear what I think is solenoid clicking when key is turned to start. Iam not opposed to thinking that I am having a starter/alternator failure at the same time but just dose not seem very likely to me. I have been wrong before.
#7
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I would have someone crank the engine for you while you have the voltmeter on the battery to see what it does under load. I have seen batteries test good until a load is applied and then it is obvious that it is bad. If it checks out, pull the starter and have it bench tested at the nearest Autozone.
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#9
Normal meter will not be able to apply the load needed to TEST the battery.
Sounds like you have a ground or the alternator isn't working or somehting left unplugged.
#10
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A normal meter can't test the battery, but it can show that the voltage drops when a load is applied. The best thing to do is to take the battery down to Autozone or somewhere similar and have them load test your battery, but a simple meter on the battery when you try to crank the car will tell you if you're on the right track. If it drops < 12, you probably need a new battery. If it holds > 12, you need to pull the starter and have it tested.
Another less likely possibility is that the starter isn't torqued all the way down and has shifted causing it to bind. Just something else you can check.
Another less likely possibility is that the starter isn't torqued all the way down and has shifted causing it to bind. Just something else you can check.
#11
Your symptoms were exactly what I had when my alternator died. Lucky to have babied it home w/o overheating. It's a Denso unit w/ BMW PN:12317515030. Some had luck w/ new TYC 211049 from Rockauto @ only $118.79.
From experience, the R53 needs a lotta juice to crank. I don't believe your starter died. I'd bet on your alternator.
From experience, the R53 needs a lotta juice to crank. I don't believe your starter died. I'd bet on your alternator.
#12
#13
#15
yes it should. but this honestly sounds like you left somehthing lose and then drove it till the battery crapped out and drained the entire system.
if you have a way of taking the alternator off and going to an actual shop not advanced and having it tested this is your best move in tracking this down.
if you have a way of taking the alternator off and going to an actual shop not advanced and having it tested this is your best move in tracking this down.
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