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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N55 Turbo Engine / Drivetrain / Exhaust Modifications > Coolant Flush for N55
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      08-13-2019, 02:30 PM   #1
XxThe_RemedyXx
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Coolant Flush for N55

Hi everyone -

I've looked all over the place for a DIY specifically for a 335i xDrive but keep running into N20 and older E90/92 videos, nothing for an F30/N55 motor. I want to flush my coolant and was wondering where to bleed it from. Do I remove the coolant directly from the water pump or does the F30/N55 have an access port or hose in a more convenient location?
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      08-13-2019, 06:55 PM   #2
MineralF30
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Quote:
Originally Posted by XxThe_RemedyXx View Post
Hi everyone -

I've looked all over the place for a DIY specifically for a 335i xDrive but keep running into N20 and older E90/92 videos, nothing for an F30/N55 motor. I want to flush my coolant and was wondering where to bleed it from. Do I remove the coolant directly from the water pump or does the F30/N55 have an access port or hose in a more convenient location?
Water pump will probably be your best bet, its usually where i drain mine when i have to.
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      08-13-2019, 10:26 PM   #3
Charles B
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^^^^^^ Agree - pull the hoses off the water pump. I got a taste when I did it but hey that's a part of wrenching in the driveway.
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