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Thread: Bosch error codes and remidies.

  1. #1
    Join Date
    Dec 2018
    Location
    San Diego
    Posts
    2
    My Cars
    2004 BMW 330ci

    Bosch error codes and remidies.

    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

  2. #2
    Join Date
    Dec 2018
    Location
    San Diego
    Posts
    2
    My Cars
    2004 BMW 330ci
    bump

  3. #3
    Join Date
    Jul 2004
    Location
    Houston, TX
    Posts
    12,462
    My Cars
    36 Cylinders
    You most likely have more vacuum leaks. Very common.
    These would be best found by a smoke test.
    -Abel

    - E36 328is ~210-220whp: Lots of Mods.
    - 2000 Z3: Many Mods.
    - 2003 VW Jetta TDI Manual 47-50mpg
    - 1999 S52 Estoril M Coupe
    - 2014 328d Wagon, self-tuned, 270hp/430ft-lbs
    - 2019 M2 Competition, self-tuned, 504whp
    - 2016 Mini Cooper S

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