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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Mechanical Maintenance: Break-in / Oil & Fluids / Servicing / Warranty > Found a couple fault codes that not even the great google knows.



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      03-07-2016, 07:44 PM   #1
TheONE24
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Question Found a couple fault codes that not even the great google knows.

So I was lucky enough to encounter the ever so popular stranded with overheat issue the other day. I'm right at 70k so after wasting half a day and finally getting towed home I did some research and found the coolant flush test for water pumps. Low and behold to fluid is being pushed to the reservoir and the pump chatters like an agitated squirrel. Okay, so time to replace that. Now that the unnecessary part is over my question is....

I did a code check with my cobb tuner and received these codes. I'm trying to figure out if I need to order more parts or just replace my Water Pump and thermostat.

Codes are
P2E82 - Water pump - Well documented here and everywhere
P2E81 - Also Water pump - Also well documented
H29F3 -
H2A7C -
H3100 - Limp Mode activated - Found a little info essentially stated that it was informational. Since my water pump went out it overheats the car with extreme quickness and enters Limp mode. Makes sense.

Does anyone have any idea what the other two are for and if I should be concerned with them?

09 E92 335i coupe with cobb and exhaust
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      03-07-2016, 07:46 PM   #2
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Are they the same as their P series counterparts but maybe just H for historical or something?
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      03-07-2016, 08:18 PM   #3
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29F3 = fuel low pressure sensor electric. Take a log and see what's happening with the fuel pressure. The sensor might need to be replaced.

2A7C = VANOS plausibility, caused by dirty or failing VANOS solenoids. Clean or replace as needed.

Remove the "P" or "H" before the code, and add "bmw" to the search and usually you'll be able to find the code.
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      03-07-2016, 08:51 PM   #4
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Perfect. Thanks for the response.
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