27-10-2014, 11:33 PM
Hi Mike and welcome to the forum.
Biggest thing we need to know is does this car have air con? (won't work being a 306 but does it have a AC button?)
If so, you should have 3 sensors on the thermostat housing.. Blue, brown and green. The brown one is the temp switch for the bitron unit which controls the fans. With the engine running, if you unplug the brown one then within about 5 seconds both fans should come on full. If not, this is an issue with the bitron, fans or wiring. Basically it just proves the sensor isn't likely to be at fault.
The bitron is located under the chassis leg under the passenger head light and is a black box slightly bigger than a pack of fags. Theres no way to test this other than how i described above so only way really is replacement.
The first thing i would check is the round multi plug on the passenger side connecting the fan unit to the cars loom. These are notorious for corroding and can even cause fires! Unplug it and any sign of corrosion, clean it up with some lighter fluid and try again.
Biggest thing we need to know is does this car have air con? (won't work being a 306 but does it have a AC button?)
If so, you should have 3 sensors on the thermostat housing.. Blue, brown and green. The brown one is the temp switch for the bitron unit which controls the fans. With the engine running, if you unplug the brown one then within about 5 seconds both fans should come on full. If not, this is an issue with the bitron, fans or wiring. Basically it just proves the sensor isn't likely to be at fault.
The bitron is located under the chassis leg under the passenger head light and is a black box slightly bigger than a pack of fags. Theres no way to test this other than how i described above so only way really is replacement.
The first thing i would check is the round multi plug on the passenger side connecting the fan unit to the cars loom. These are notorious for corroding and can even cause fires! Unplug it and any sign of corrosion, clean it up with some lighter fluid and try again.
Team Eaton
1999 China Blue 306 GTi6 - Eaton Supercharged - 214.5bhp 181lbft
1999 China Blue 306 GTi6 - Eaton Supercharged - 214.5bhp 181lbft
