Thread: TD5 Aircon Thermistor

Not sure what you mean about unobtainium, but I'd just stay with genuine or well known aftermarket ones, you could try retrofit something else but probably not worth the effort.

Search for: jtf100280

Originally Posted by shack

Not sure what you mean about unobtainium, but I'd just stay with genuine or well known aftermarket ones, you could try retrofit something else but probably not worth the effort.

Search for: jtf100280

Thanks a million - couldn't find that part number for the life of me.

Will order from the UK

Originally Posted by CapeLandy

Thanks a million - couldn't find that part number for the life of me.

Will order from the UK

In your signature it says you have a 2006 Kalahari defender with 300tdi. Is that a miss type?

That is correct. Here is SA they sold a few hundred TDi engined defenders with similar parts to a TD5 so it's a bit of a mixed bag of different components. Mine was also converted back from a game viewer using TD5 doors etc.

Originally Posted by CapeLandy

That is correct. Here is SA they sold a few hundred TDi engined defenders with similar parts to a TD5 so it's a bit of a mixed bag of different components. Mine was also converted back from a game viewer using TD5 doors etc.

I wondered....

So your AC will have a little ECU that controls it?

Does your motor have a little ECU that controls pump timing and a sensor on the number 4 injector?

Yes, there is a small PC board in the AC which is linked to the thermistor.

The TDi has no sensor's on the injectors no - simple 300 TDi motor block produced in Argentina which is apparently quite good

Originally Posted by CapeLandy

Thanks a million - couldn't find that part number for the life of me.

Will order from the UK

Go to any wreckers and find any jap wreck with airconditioning from about the year 1990 on. It should have a thermistor in the evaporator.
Plug will most likely be the same in earlier ones, if not just cut and shunt. I think you will find it will work.
Cheers
LuckyLes

Originally Posted by LuckyLes

Go to any wreckers and find any jap wreck with airconditioning from about the year 1990 on. It should have a thermistor in the evaporator.
Plug will most likely be the same in earlier ones, if not just cut and shunt. I think you will find it will work.
Cheers
LuckyLes

Hi Les,

I have no doubt you are right.

All I'll add to it is that I can't actually see any reason to have that setup on a 300tdi!

It's overly complex when you consider that the 300 has no ECU itself. So an old school 2 wire thermostat with variable positions has been replaced by an ECU, thermistor and 3 position temp control switch!

I've actually added an a thermostat override switch in my TD5 that keeps the pressure switch and still triggers the engine controller to run the AC and condenser fan.

I nearly went old school thermostat myself.

In fact, unless all the TD5 defenders I've used all had problems with either the AC ECU or the thermistor, I don't think they are well calibrated for the job. Much cooler if I use the override (probably uses more fuel and could also freeze the evaporator, but I don't care because it cools the car!)

But the wrecking yard thermistor will likely do the job.