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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
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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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      Yesterday, 09:26 PM   #2
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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?
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