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3-Series (E46, E90) Chat relating to the BMW 3-Series from 1999 to Current. Models include: BMW 316i, BMW 318i, BMW 318Ci, BMW 320i, BMW 323i, BMW 325i, BMW 330i, BMW 328 Ci, BMW 328i, BMW 325i/xi, BMW 330Ci, BMW 320d, BMW 330d, BMW 335d.

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Old 01-16-2007, 12:57 PM   #1 (permalink)
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Please Help! What should I do with these fault codes?

I was storing my car for the winter, went to go start the car but it didn't start so I got a fault code reader. And it gave me these codes.

Bav code: A8
BMW code: 168
"coolant thermostat coolant temp. below thermostat regulating temperature"

on the bav auto code reader manual, it says that it is "thermostat jammed open". how would i close or put back to normal?


Bav code: 41
BMW code: 65
'intake camshaft position sensor "A" circuit (Bank 1 or single sensor)

Bav code: 7b
BMW code: 123
"Map cooling thermostat control circuit signal low/high

I wanted to replace the thermostat and the intake camshaft position sensor but thought i ask see what you all think. Whats the easiest and cheapiest way to deal with these problems.

Please help, dont really want to spend alot of money on unneccessary parts.
thanks in advance!
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Old 01-16-2007, 01:57 PM   #2 (permalink)
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If the thermostat is jammed on, then you need to replace it. CHeap, easy, and clean. No biggie.

How much does an intake camshaft position sensor cost? I don't even know if it is hard to replce I don't want to make any costly asumptions here. I'll let somebody else chime in on that one.

The third code confuses me a little bit. I am not sure, but it may be a lose, shorted, or boken connection somewhere. I don't know if this is related to the coolant temperature snesor, which plugs into the side of the radiator (check that connection).

What does the bavauto manual say about the latter two codes?

DO you have a Bentley repair manual? It is a must-have for these cars.

Good luck.
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Old 01-16-2007, 06:50 PM   #3 (permalink)
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Cool, got the first one down.

Now the second one with the intake camshaft sensor, the bentley repair book shows a simple connector or holes .. seems like it would be cheap as well.

the third one, I guess it might relate to the thermostat being jammed open.

thanks DRZ.

anyone else have an ideas let me know.
Thanks
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