Position Temperature Sensor

Hi tinkerers!

I've built a temperature display for my car and now I'm wondering where the interior sensor should be placed, i.e. where I can get a reasonably representative temperature reading...
I was thinking about the space under the fan control (at the diagnostic port).
Alternatively, the top end of the A-column also comes to mind.
What do you think about it?

Hi Ruki

Hey, don't deliberately make us, the "Ösis", the butt of jokes! I think you'll manage just fine with that position. If you find the level here too high, then just read or look for the lighting mod community. Here, the tone is somewhat more serious, and I definitely recognize that;-) And that's understandable, of course!

BTW: I really don't care where you place the sensor, as far as I'm concerned, in the driver's seat cushion . So, decide it all on your own, you can do it!

lg robert

My auxiliary heater displays the interior temperature via the FFB.

The sensor for this is located in front of the hood release, so in the driver's footwell on the left.

'The car's temperature gauge is always the same, so it shows the exact outdoor temperature.'
In the summer, the sun doesn't directly hit the sensor, so you can add 10-20 degrees to the 45 degrees and have the temperature at head height.

and if the SH is running, the climatronic first heats the window and then the footwell. Therefore, I only leave the house when the system shows 20°C, because then the car is really warm everywhere

You need to make sure that the sensor doesn't get direct sunlight, otherwise you could have a rapid +80° increase on the clock in the summer...

Cu Gremlin

Hi,

@LZ: The question isn't that stupid. He has already included a few ideas, and now a proper discussion can take place. The question is, whether it really doesn't matter, but it does.

@Ruki: On the Ibiza, the original sensor near the ignition lock is slightly lower, located in the trim, roughly halfway between the ignition lock and the radio.

Following Gremlins' arguments, I would also suggest incorporating him somewhere further down, your idea near the ventilation control should therefore definitely make sense.

Best regards,

Jan

Hello again!

Thank you for the quick response!

@LZ: 1. The forum name includes '...&Miscellaneous'
2. The technical article on digi-LDA also includes a 'Beleuchtungsmod'
3. Check out the motor forum articles under 'OT:...' to see where this can lead.
I am, of course, aware that the contribution was not at the level of experienced workshop managers, but I was simply interested in your opinion on the matter.
Maybe in a year, I'll also be able to write something 'more challenging.' But that's where the community comes in, so that you can learn from each other.

I hope that we can still 'reconcile' (sounds a bit strange in a forum).

Greetings, Ruki

Ruki wrote:

...I am, of course, aware that the contribution was not exactly at the level of experienced workshop managers, but I was simply interested in your opinion on the matter.

That's not necessary either. Your question was perfectly fine and also correctly placed.

The answer to that has already been provided by Gremlin... but ask yourself what you actually want to measure? At the top of the A-pillar, you will measure the temperature in the summer that is most uncomfortable for you as a driver, while in the footwell, you will be somewhat shielded from the sun and measure a lower temperature.
What is more important to you? Understanding the climate that you prefer, or a temperature that you normally don't notice (e.g., the temperature of the footwell)?

Neither of these options is "wrong," it's simply a matter of perspective.

@Ruki

In the Passat 35i, the temperature sensor for the Climatronic is located in the center, next to the speedometer. Okay, hier ist die Übersetzung, wobei alle exakt beibehalten werden:

Bitte beachten Sie, dass die folgenden Informationen nur zu Informationszwecken dienen und keine professionelle Beratung darstellen.



Best regards, WarLord

Hello!

I have now assembled it, and that is beside the diagnostic connector, in the shade (as originally intended).
Besides the steering column, another good option would be, but I ultimately chose the 'less visible' location.

Just for curiosity:
Does anyone know where the original outdoor temperature sensors are located?
I've noticed that the temperatures, regardless of engine heat and driving speed, are relatively constant (except when there's strong sunlight).
Or is it electronically compensated???

Greetings, Ruki

Does anyone know where the original external temperature sensors are located?

In the front bumper.

Or is it electronically compensated???
What's the big deal, when it's so easy?

Or is it electronically compensated???


At DB, there's already something like 'electronic buffering'.



The original climate sensors also have a small fan motor installed behind the temperature sensor for the indoor air, so that the air 'doesn't get stuck'.

The original climate control sensors also have a small fan motor installed behind the temperature sensor for the indoor air, so that the air 'doesn't get stuck'.

Okay.

Best regards, WarLord

Does anyone know where the original outdoor temperature sensors are located?
I've noticed that the temperatures, regardless of engine heat and driving speed, are relatively constant (except when there's strong sunlight).
Or is it electronically compensated???


behind the left trim panel, under the bumper. A small opening allows the airflow to directly reach the sensor.

The entire system is electronically compensated to form an average over time. This has the purpose of masking short-term fluctuations, for example, when the sensor is heated by engine heat due to the lack of wind.
It's very nice to see this in operation with the central heating system. The sensor value is then several degrees above the actual value of the outdoor air, but the temperature measured during the heating system start is displayed. Only when the temperature remains at a relatively constant level for a sufficient time will it be displayed as a value. Significant changes require a longer waiting time, while small changes are immediately taken into account.
since I immediately start driving after the engine starts, the measurement influenced by the auxiliary heater will not be displayed, because shortly after starting, the measured temperature returns to the outdoor temperature. Is that clear?

See you, Gremlin

Hello!

Thank you for all the answers to my previous question.
My cable currently doesn't reach to the bumper, so I might try soldering something in there.
But I used it in the fresh air pipe for the original. Lufi is housed (now because of the 57i kit, unused).
There, he gets the fresh air 'restricted' and it also doesn't get too hot too quickly.
Since the measurement interval I set is approximately 10 seconds, it doesn't jump around erratically when I need to stop.

I think I'll post another picture so you can see that the thread was worth it.

http://wald.heim.at/wienerwald/552252/tanz.JPG

thanks Ruki [/img]

Hi

Just wanted to add that for the Beetle, the temperature sensor for the outside temperature is located in the water tank, right next to the interior air filter.

are you sure that the one used for the outdoor temperature display is not the sensor for the climatronic?

Between the strut sensor and the intake air sensor, there are several degrees of difference depending on the weather. Both can be displayed in the diagnostic channels of the climatronic...

See you, Gremlin

Do you mean me???

Climatic ??? I can just turn on my air conditioner switch.
With this sensor, I am very confident because it has a double measurement system, and when I unplug it, neither the climate control nor the temperature display in the dashboard goes off.