B3A41

Active Aerodynamic Feature B Actuator Temperature Too High

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–278 (est.)

Symptoms

Inactive aerodynamic elements
Fault alarm on the instrument panel
Reduced efficiency of active aerodynamics

Causes

Active aerodynamics drive B overheating
Drive temperature sensor fault
Wiring harness damage
Mechanical drive lock

How to Fix

Check the condition of the wiring and connectors to the drive
Measure the parameters of the drive temperature sensor
Clean the drive mechanism from dirt
Replace drive or controls if necessary

Related codes

B3A40 B3A42 B3A43