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    BMW 318 1994 1.8 Coolant temp reading high Archived Message

    Posted by Paul Mc Ewan on May 29, 2004, 8:41 am

    BMW 318
    Mileage: 162007
    ECU type: motronic 1.7 0261 203 277
    Fault code: Coolant Temp Sensor.

    Hi everyone,

    Checked with autodiagnos, live data showing cts reading 191c, replaced cts no different. Car will run eventually but very difficult to start.Have 4.5 volts down to sensor, checked continuity to ecu ok to pin 78 but not to pin 43.Tried to follow cable back to ecu it stars off brown purple but is brown /black at ecu (if autodata and caps are right)cable disappears inside vehicle behind glovebox, why?
    connected pin 43 direct to cts still no joy.
    Anyone else come across this?

    Thanks
    Paul Mc Ewan.

    Message Thread:

    • BMW 318 1994 1.8 Coolant temp reading high - Paul Mc Ewan May 29, 2004, 8:41 am
      • Replies - andyhyoung May 29, 2004, 4:11 pm
        • Replies - Paul Mc Ewan June 1, 2004, 6:50 pm
          • Replies - Nick Bell June 7, 2004, 3:00 pm
            • Fixed - Paul Mc Ewan June 14, 2004, 7:08 pm

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