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BMW 3-Series (E90 E92) Forum
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E91 doesn't start
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05-12-2024, 06:37 AM | #1 |
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E91 doesn't start
Hello, a few days ago after leaving the car for 3-4 hours it didn’t want to start. I then jump started the car and it fired up fine, then after leaving it again for a couple hours same story. I went ahead and charged the battery, after fully charging it the car started fine, but then after leaving it for some time it doesn’t want to start again all it does is the cluster flashes and there’s electrical clicking
I have changed the starter 3 weeks ago What I have figured out is when placing a fully charged battery or jump starting the car it will start, but after that trying to start it on its own doesn’t work Clicking |
05-12-2024, 07:40 AM | #2 |
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make sure the battery is good, agm or lead dont like complete discharge and charging.
If its all good, Ill guess the ground wire to the engine is broken (common). Check both : exhaust manifold side and the driver side. The driver side is visible from under the car. Passenger side visible from the top. |
05-12-2024, 07:43 AM | #3 | |
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05-12-2024, 10:17 AM | #4 | ||
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A) Charge Battery & Start Engine. Measure System Voltage at Jumpstart Terminals under Hood, with engine running. DC Volts should be in 14V range. B) Fifteen (15) minutes AFTER engine shutdown, measure voltage at Jumpstart Terminals again, and RECORD value. Measure AGAIN in 3 hours & Record Value. C) With engine OFF, feel rear of alternator, to see if noticeably WARM (warmer than adjacent engine parts). Report those results. There are OTHER possible causes of your issue, but those tests are "Starting Point" to identify cause of issue. George |
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05-12-2024, 10:28 AM | #5 | |
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