Hot air leak — steering column vent damper

Tags: #hvac · #heat-shield · #unresolved

One owner experienced strange hot air blowing onto their knees from under the steering column, even with the climate control set to cold. The problem occurred in summer and specifically on the highway, intensifying at speed. Possible causes investigated included a thermal heat shield passing engine heat into the cabin — but on inspection the shield was found intact, ruling that out as the cause. The problem resolved itself spontaneously after some time, with no mechanical fix ever applied. A later, unrelated diagnostic scan on the same car did turn up an error code related to the thermal/ventilation damper system, which may or may not be connected to this earlier symptom — treat this as a lower-confidence, unresolved report rather than a documented fix ¹²³.

Media

Diagnostic scan screen showing an error code related to the ventilation damper system

Related pages

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• Heater/AC damper servo — part and price
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• Heater-core coolant leak into the cabin
• Radio/A-C/display/fan failure — blown fuse

Sources

This page is compiled from 3 community messages. Every fact carries a numbered reference to its original author and message.

Last updated: 2026-07-24