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Old 11-13-2012, 03:48 PM
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DSXMachina DSXMachina is offline
Bimmerdex 7.4!
Location: New Hampshire
Join Date: Dec 2007
Posts: 11,157
Mein Auto: 335i E92 TiAg 6MT ED
Originally Posted by autoque View Post

One question. You said it could be the coolant temperature sensor and later you mentioned the faulty engine temperature sensor circuit. Do they mean the same thing? Would replacing the coolant temperature sensor fix the engine temperature sensor circuit?

Thank you very much again. You are a godsend!
Don't set me on any pedestals, I haven't fixed a thing, and the odds are against it being so simple.
What I mean by the circuit is the wiring harness, the connector and the sensor itself. A chafed wire, bent connector pin or shorted sensor or who knows what.

I want to mention one more time that someone with decent equipment should be able to do a proper diagnosis before you change anything. You've got a very complicated machine and all I did was take an educated guess based on the history and symptoms.
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