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      11-25-2024, 11:04 AM   #1
cmihaylov
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BSD Issue - Possible Water pump?

Hi all,

I recently started having an issue with the BSD line and wanted to see your thoughts. The car is a 2010 E60 535i.

Couple of days ago I went to check my oil level in i-drive and noticed that it said that the oil level reading is inactive. So I started looking into the issue. Went through the BSD troubleshooting by unplugging each BSD component one by one - IBS, Alternator, Oil level sensor and waterpump. When I unplugged the waterpump, cleared the codes, the code did not appear again. I plugged the waterpump back in and everything was working normal. The oil level was active again and the waterpump did not run constantly. ​​​​So I figured it must've been a bad connection at the waterpump.

A day later the issue came back. Is it possible that the waterpump electronics are on their way out? Like I said, when I disconnected the waterpump and plugged it back in it was all good.

I'll go under again today to clean the plug really good and see if that helps.

Thank you.
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      12-22-2024, 06:52 AM   #2
silfwerz
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have you solved the problem yet? having problem too with bsd - communication with alternator.
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