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Rear ventilation flap fault
The rear ventilation flap takes care on ventilation in the back of the car.
Costs
Every car issue can be caused by different things. Here are the most common ones
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Most Expensive
Moderate costs
Moderate costs
Cheapest case
Discussions
User of our Carly Community asked the following questions regarding that fault:
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Details
Probability
Based on the values and symptoms you have entered, a crude estimation of the probability of this problem can be made
HIGH
Typical consequences
If this defect is detected, it may lead to the following problems:
- Restriction of driving comfort
Functionality ventilation control
Ventilation flaps are essential for air distribution and temperature control in the rear compartment. They allow the adjustment of air volume and temperature at the rear vent outlets. They are controlled by the IHKA control unit, which communicates via a bus system.
The adjustment motors, called "MUX motors", are connected to the bus system and are thus capable of diagnosis. Errors are registered and interrupt the control. Each motor is uniquely addressed, which allows precise differentiation during bus communication and means that the motors are not interchangeable.