2002 E46 318 OBD11 problems

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  1. 2002 E46 318 OBD11 problems 
    #1
    BMW Crazed
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    moghm's Car Details
    Model of Car:
    318i
    Year of Manufacture:
    2002
    Transmission Type:
    manual
    Car Body Type:
    saloon

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    hi guys,

    I have purchased an OBD11 bluetooth reader from ebay. Car is an E46 2002 318 OBD 11 compliant. Plugged obd11 in and got all readings, temp, coolant temp, rpm, maf, etc etc. No probs there. However, I am unable to read error codes, software just returns 'no error codes found in ecu.' Now I know for sure my car has error codes, as only the next morning car was in garage and returned 4 error codes.

    So if you assume that there are error codes stored in the ecu, engine light not on by the way, why cannot the obd11 reader read these codes ?

    many thanks,
     
     

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    #2
    BMW Guru
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    TheEnd's Car Details
    Model of Car:
    540
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    1998
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    The OBD2 reader will only read the engine ECU.
    Other stuff like EWS (which often throws a couple of key codes up) door locks, windows, ABS, radio, aircon etc isn't covered.
    These are all held on their own modules.
     
     

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    #3
    BMW Crazed
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    moghm's Car Details
    Model of Car:
    318i
    Year of Manufacture:
    2002
    Transmission Type:
    manual
    Car Body Type:
    saloon

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    thanks. I have 4 faults, cam shaft, crank shaft x 2 and O2, and its not reading these either. I know this because garage gave me a printout and I am doing these things as diy, so need the obd2 to read the codes :(
     
     

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    #4
    BMW Guru
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    TheEnd's Car Details
    Model of Car:
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    crank 2x cam maybe?
    that's a lot of sensors.

    I'm not sure why OBD2 isn't picking them up, by rights it should, especially the o2 sensor.
     
     

  7.  
    #5
    BMW Crazed
    Car Details
    moghm's Car Details
    Model of Car:
    318i
    Year of Manufacture:
    2002
    Transmission Type:
    manual
    Car Body Type:
    saloon

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    ure right, 1 crank shaft sensor and 2 cam shaft sensors. I have had O2 done and am moving on to the crank shaft sensor. I am surprised also that 4 sensors had gone. Not happy at the moment!!!
     
     

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    #6
    BMW Guru
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    TheEnd's Car Details
    Model of Car:
    540
    Year of Manufacture:
    1998
    Transmission Type:
    Auto
    Car Body Type:
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    Well, if the crank sensor goes, the car usually stalls.
    The cam sensors often just make it run rough.
     
     

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