I have a 2004 330ci (sports package if it matters), I have had this car for about 3 years now and I recently failed a smog test for a vacuum leak. I check the two tubes and yes replaced the cracked hose one. After that, I received a service engine soon light. I used a Bosch code reader at O'Reilly auto parts and the codes were:
10179 - Thermal Oil Sensor. From what I know this is the oil sensor that is mounted with three bolts to the bottom of the oil pan?
10371 - Mixture Preparation Bank 2. He ran the codes and nothing came up and he thinks they might be related to an o2 sensor
10370 - Mixture Preparation Bank 1. Same as above. How likely is it that both go?
10054 - Engine Misfire Cylinder 2. I am at 175,4-- so I am guessing either it's time for coils and or spark plugs?
10139 - Thermostat Characteristic Field Cooling Mechanics? Honestly haven't looked yet.
112 - Not defined code
I know BMW parts like to work together I plan on using BMW and OEM parts.
Any advice would be greatly appreciated
bump
You most likely have more vacuum leaks. Very common.
These would be best found by a smoke test.
-Abel
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