This issue has had me confused for a while, I have replaced and the brown sensor and bitron/cooling fan relay and the thermo fans come on when the brown sensor is unplugs, but not at the certain temperature.
Would I be right to assume there is a broken/corroded pin and the connector behind the front bumper where it screws/connects to the thermo fan housing?
- Brad
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Proud owner of a gti6 '98