P2108 Audi Code - Throttle Actuator Control Module Performance

P2108 indicates a problem with the Throttle Actuator Control Module Performance, meaning the module is not functioning as expected or is sending incorrect signals.

Common symptoms include reduced engine power, poor throttle response, the Check Engine Light turning on, and, in some cases, the engine entering limp mode.

Possible causes include a faulty throttle actuator control module, wiring or connection issues, a failing throttle body, or problems with the powertrain control module (PCM).

Yes, a dirty or clogged throttle body can disrupt proper throttle actuator operation and potentially trigger the P2108 code.

Start by checking the throttle body and throttle actuator for damage, ensuring all connections and wiring are secure and clean. Use a diagnostic scanner to monitor the throttle position sensor data for abnormalities.

Driving with this code is not recommended, as it can cause reduced power and throttle response, potentially leading to unsafe driving conditions.

Repairs may include cleaning or replacing the throttle body, repairing damaged wiring or connectors, or replacing the throttle actuator control module if it’s faulty.

In some cases, an outdated or corrupted PCM software can cause this issue, so a software update may resolve the problem.

Repair costs vary depending on the root cause, but throttle body replacements typically range from $200 to $500, with additional labor costs if professional service is required.

Yes, insufficient voltage can affect the throttle actuator’s performance and potentially trigger the P2108 code. Always check the battery and charging system.