So I'm having some major issue with my 98 a8 heater cores. I turned the climate control on and there is no heat in any vents, also only the drivers vent blows air while I have the mid level vents on. To add insult to injury.... the dash board makes a 'trik, trik, trik' sound. The window vents work in the front and i have yet to check the footwell vents. Could this be a major problem? Should I remove the dash and swap the whole box out? I have one from a donor car. Would a modus scan tool find the problem or is vagcom the only way to go? Winter is almost upon us and I'm desperate.
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