External Temperature reading... Faulty!

[repenttokyo]

Isn't this where the temp is read for the AC compressor and/or the heated mirrors?

yes.

[billy]

yes.

no actually, the heated mirrors are on regardless - they come on with ignition

according to the wiring diagrams

[Jehu]

I figured this temp sensor must interface with the ac system somehow. Its still been in the lower 40's at the highest here and i tried my AC yesterday but found warm air still mixing overpowering any chill you'd expect from the ac system even though i may be low on refrigerant. What is the temp at which the system allows the ac to engage?

[billy]

its +1 degree c

i would have thought that should you press the ac below this temp then the ac light won't illuminate

[repenttokyo]

no actually, the heated mirrors are on regardless - they come on with ignition

according to the wiring diagrams

the heated mirrors only come on when you turn on the rear defrost, as far as I know...why would they heat in the summer?

[Paul in NZ]

I beleive the mirrors always turn on with ignition ....they dont heat much,just enough to melt then evaporate any water on the mirror glass...next time you get a frsty mornin turn the car on without turnig anything elase on...in a few minutes your mirrors will be steamin...

[e34.535i.sport]

I beleive the mirrors always turn on with ignition ....they dont heat much,just enough to melt then evaporate any water on the mirror glass...next time you get a frsty mornin turn the car on without turnig anything elase on...in a few minutes your mirrors will be steamin...

+1 mine do this... If its 24degrees(C) in your car in winter Captain you'd better invest in some aircon!!!!!

[anonymous1]

Hi,

I haven't got AC on the car, so unsure if this problem would have had an adverse affect on this. The heated wing mirrors didn't seem to be affected by it. Sometimes my temp will still be reading +24oC after I have left the vehicle for a while, due to the sensors proximity to the engine since the fix and they still come on.

Long as the beep everytime I turn the key is gone I'm pretty happy for now.

Dave - Not sure I'll be able to add any wire onto the amount that is left, had to cut back the rubber boots on the connector to get enough for the splice. Think I'd need to buy a new sensor as the connector block is seems fused to it. (Presume it's from those -37oC snow blizzards my car said we were having! )