Ventilation always blows warm air
- Thread starter 2.5tdi
- Start date
Have you turned the dial in the central vets from red to blue?
Attleborough, Norfolk
Doh, wasn't thinking straight, yes e89 thingy
Ah, I don't have any with that number, but do you know if its the motor or the gearbox that is faulty?
You can lift the black cap off and remove the drive motor.
I have a couple of spare motors if they would be of any use. It looks like they have the same plug connectors and work the same way.
You can lift the black cap off and remove the drive motor.
I have a couple of spare motors if they would be of any use. It looks like they have the same plug connectors and work the same way.
I took it apart and it all looks perfect. Gearbox is ok, even motor does not look bad.
When i do initialisation it does move but then acts weird. Like sometimes when i adjust temp it moves left and right sometimes doesn’t move at all unless i turn temp all the way to cold or hot.
Thank you, i will contact you.
When i do initialisation it does move but then acts weird. Like sometimes when i adjust temp it moves left and right sometimes doesn’t move at all unless i turn temp all the way to cold or hot.
Thank you, i will contact you.
Eindhoven NL
Out of curiosity, ventilation blows hot air regardless if the AC is turned on or off? Im having a similar issue with the AC however, this was suspiciously after i got my thermostat and coolant replaced. Didn't bother to call the garage as summer is ending. Anything specific i need to lookout for on INPA? I'll have a look at analog input of the IHKA module
Everything with the rotary dial and the flaps seems to be ok.
Flap position for fresh air and recirculated air went from 0 to 100 and then later sat at 20, so seems to be fine i would guess (first time diagnosing this)
Only strange thing i see is when temp setting is set to 17 (or 16) I don't see anything else dropping to those values, especially the mix temp sensor. had it on full blast and evap sensor was reading 23-24. I guess i just need to do an airco fluid service when summer comes around? If this was caused by the coolant refresh, i would guess that my engine temp reading would also be higher than normal right?
Flap position for fresh air and recirculated air went from 0 to 100 and then later sat at 20, so seems to be fine i would guess (first time diagnosing this)
Only strange thing i see is when temp setting is set to 17 (or 16) I don't see anything else dropping to those values, especially the mix temp sensor. had it on full blast and evap sensor was reading 23-24. I guess i just need to do an airco fluid service when summer comes around? If this was caused by the coolant refresh, i would guess that my engine temp reading would also be higher than normal right?
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NaweedMustafa said:
This is not flap responsible for inner temperature but for source of air. You should look for air mixture flap.
NaweedMustafa said:
Exactly same problem as mine. As i see from second photo there was 16C outside when you did test, so mix temp sensor should match that temperature. If that test was with AC on then you probably need AC service aswell, but first make sure that air mix flap works.
Yes engine would probably overheat and if you are not sure you can bleed coolant system with inpa again.
2.5tdi said:
Aha, for the past year indeed the difference between 17C and 16C was big (somewhat cold on 17 setting then extremely cold on 16), so i guess that explains the air mix flap. now of course its that plus the AC not working as it was turned on during this test. The Mix flap motor, do you know the specific term for it so i can have a look at a manual on ISTA? difficult do access or not? I definitely do not want to go to a garage for such a thing, other than reconditioning the fluid of the AC of course