B3A53

Active Aerodynamic Feature D Actuator Position Sensor Not Learned

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–222 (est.)

Symptoms

Incorrect operation of the active aerodynamic element
Error message on the dashboard
Reduced dynamic performance at high speeds

Causes

Position sensor malfunction
Wiring harness damage
Mechanical failure of the aerodynamic element
Control unit software failure

How to Fix

Check the integrity of the wiring harness and connections
Test position sensor
Perform sensor calibration
Update control unit software
Replace sensor or aerodynamic element if necessary

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