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      02-23-2021, 11:51 PM   #8
550ihtown
Private First Class
United_States
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Drives: 550i 2014
Join Date: Jul 2017
Location: Mobile Alabama

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2008 M3 E93  [0.00]
2022 BMW X7 M50i  [0.00]
Quote:
Originally Posted by daniel650i View Post
Quote:
Originally Posted by Opie55 View Post
Just FYI, the system that uses that front little reservoir is totally separate, and has no level sensor or warning. It does not connect to the turbo lines. That front system does not get very hot, and cools the charge air coolers - those two silver boxes up front - and your two engine computers. As for the "corrosion", I'm not sure exactly what that is. It looks like a sealant of some type. I would clean that off, then monitor it to see if anything returns.
Thank you for your help
I had the exact same problem on my 550i which has a similar model. If you trace the rubber lines, they go up to a metallic part which also is replaced most of the times by dealerships - which can be an unnecessary additional cost. So you should ask them to just do the rubber ones and you will be ok. I drove my car for another 20k miles after that and I had no issues again. It was a $600 repair in comparison to $2500 for getting the whole metallic pipes changed along with.
Appreciate 0