Lukeyb
Registered User
- Joined
- Oct 21, 2008
- Messages
- 397
- Reaction score
- 53
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- 28
My 07 A3 has no heat through the vents, though the matrix if I feel the pipes or stick my hand up the passenger footwell can feel the matrix gets as hot too. Yet theres no heat through the vents, if I stick the heat up to HI theres heat for a second then it goes cold, which is weird.
Any garage I ask just say blocked heater matrix, but the matrix itself feels like it gets hot, or could it be getting hot by radiation then being quickly cooled when the climate blows air over it? Ive changed a heater matrix in an older golf and it was a nightmare dash out job, this can only be worse being stuffed with more technology.
I have looked in VCDS and theres a sensor that I think may have an open circuit called outside fresh air temp (iirc) as it reads -50, but would this have any effect on the vents not allowing the hot air? I would have thought it would have the opposite effect.
The air con works fine, very cold actually and there are no errors in VCDS.
I think I really need this fixing before winter comes as I'm not going to be able to defrost the car.
Any garage I ask just say blocked heater matrix, but the matrix itself feels like it gets hot, or could it be getting hot by radiation then being quickly cooled when the climate blows air over it? Ive changed a heater matrix in an older golf and it was a nightmare dash out job, this can only be worse being stuffed with more technology.
I have looked in VCDS and theres a sensor that I think may have an open circuit called outside fresh air temp (iirc) as it reads -50, but would this have any effect on the vents not allowing the hot air? I would have thought it would have the opposite effect.
The air con works fine, very cold actually and there are no errors in VCDS.
I think I really need this fixing before winter comes as I'm not going to be able to defrost the car.