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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > Coolant Pump Blocked Code

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      04-27-2015, 07:48 PM   #1
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Drives: 2011 335xi
Join Date: Jun 2014
Location: Seattle, WA

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2011 335XI  [0.00]
Coolant Pump Blocked Code

Hey folks,

I own a 2011 335xi (LCI) with about 42k miles on it.

My car threw a yellow "engine too hot" triangle the other day, I pulled over let it cool down and then drove it the last few miles home.

When I parked in my garage I could hear (in the cabin) a fan or some other sort of loud sound coming from the passenger front side of my car (not sure about exact location). It turned off when I turned the car off. I have never heard this sound before.

I took my car to the shop today and they took a look at the codes that the car threw. It threw two codes at some point, one was for undervoltage detected and the other was coolant pump blocked.

They said the undervoltage code was thrown because my CCC failed to go to sleep after the car turning off (this worries me alot since it sounds stupid expensive to fix).

They were sort of confused about the water pump blocked code because generally, they see a water pump deviation code instead when the pump is on its way out. I also couldn't find any useful information about this code other than finding it in an obscure PDF online with fault code (hex) 0x377A
and fault code (dez) 14202 .

The shop is keeping the car overnight to check the battery tomorrow morning. I was hoping this would be relatively simple water pump and thermostat replacement and was planning at spending around $1.5k but am now a little worried.

Does anyone have any experience with these issues?
Appreciate 0
      06-03-2015, 04:09 PM   #2
Private First Class

Drives: 11 E90 335i
Join Date: Aug 2014
Location: Columbus OH

iTrader: (0)

Any update on this problem? I had this same issue with my 11 N55 on Tuesday and pulled the exact same code.
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