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      05-15-2022, 12:12 AM   #5
MrS3anW
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Drives: 2008 & 2011 BMW 335i
Join Date: Jan 2021
Location: Seattle

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Quote:
Originally Posted by Soden82 View Post
I had the same issue in my drive home recently but I had coolant blowing out of the top of the reservoir after it boiled. Tomorrow I'm going to bleed the system twice and start the car and see if it overheats again.

I suspect your thermostat is stuck open or close. Water pump is probably fine due to the fact that it bled the system. I think that's what's going on with mine as well.

Luckily, on these cars when the thermostat goes out they stick open.

I bought a new reservoir today and I plan on installing it in the morning, hopefully that will resolve the issue. The thermostats are a pain in the ass on these cars so I am hoping to dodge that bullet.

Please keep me posted on your progress!
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