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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > 2012-2019 BMW 3 and 4-Series Forums > General F30 Sedan / F32 Coupe / F36 Gran Coupe Forum > Errors- urgent
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      Yesterday, 08:38 PM   #1
Ishan99's Avatar

Drives: 2017 BMW 320i
Join Date: Jun 2017
Location: USA

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Errors- urgent

Hey guys, my car gave me engine overheated notice so I pulled over. I had this issue a week ago, took it to bmw, they did a coolant bleed and said that it's fixed. They also did an iStep update afterwards. Few days later (today), this happens again. The car isn't leaking coolant- the reservoir is at the appropriate level. I have a LCI N20 320i. I feel like it could be a faulty water pump and it needs to be replaced but I am no expert. Btw, the attached errors are the same I had the first time. After bmw did the coolant bleed and the iStep update, the errors were gone. I drove some miles and I kept checking to see if they would come back but they did not. When I got the error notice, I pulled over and did an error read on the car and I got the errors shown in the pics attached.

Any help is appreciated!
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Ishan Achar
Former: 2004 BMW E46 325i
Current: 2017 BMW F30 320i
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      Yesterday, 09:26 PM   #2
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Drives: 2016 340i xD 6-spd
Join Date: Jan 2020
Location: New Jersey

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I wonder if that undervoltage message and the waterpump not circulating fast enough speak to an electric issue underlying both things. Is your alt putting out more than 14 volts?
'92 325i RIP, '99 328i, '16 340i
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