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      01-04-2019, 11:52 PM   #1
WeekendWarriorz
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Drives: 2006 Z4M
Join Date: Jan 2017
Location: Anaheim Hills, CA

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F8X S55 owners BEWARE!! Charge cooler failure

Hello everyone,

I'm not around on this Section of the forum but have and still am gaining more knowledge of the S55, but am knowledgeable to the N54/N55 platform and linger on e90post/1addicts. Recently a buddy of mine with a F80 M3 has been receiving drivetrain malfunctions, down on power, and extremely hot air intake air temps, the charge air cooler as you guys know should be cool to the touch.

Car goes into diagnostic at a local performance shop and find this: (see images below). After pulling the intake manifold off the car.

Yes that's right, seems like the factory charge air cooler has leaked the cooling fluid through the core and gone directly into the intake manifold, and through the intake valves directly into the engine. From what I've seen this is the first that has happened on this platform. The car will be repaired and back running in a few days. But as a PSA seems like upgrading the stock heat exchanger to prevent a 2k+ failure/repair like this is the way to go.
Attached Images
      
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2006 Z4 M Roadster Black/Imola Red, FBO VF-Engineering, e85 Flex Fuel-Sold
2012 BMW 135i N55 DCT Alpine White/Coral Red, FBO, TBI, Full e85, JB4 BEF-Sold
2006 Z4 M Roadster Black/Black-Sold
2021 M2 Competition DCT Hockenheim Silver

Last edited by WeekendWarriorz; 01-05-2019 at 12:42 AM..
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