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Old 10-19-2010, 10:21 AM   #2
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Join Date: May 2008
Location: Markham
Posts: 458
Davor, -128 sounds like a sensor and/or connection. The engine should be fine if there is no leak the Thermostat will still do its job.
Check the Double Temp Sensor, #9 in the diagram or the connector that is what sends the temp signals to the computer.
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'99 E39 540iT
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