2021 Audi Models Starter-Alternator Emissions Service Action 27BQ

Audi has issued a revision to its Emissions Service Action 27BQ, specifically targeting a second wave of 2021 Audi vehicles. This service action, identified as 27BQ_REV20240819, focuses on replacing the starter-alternator in affected models to ensure proper vehicle operation and emissions compliance. The primary concern is a defective starter-alternator that can prevent the vehicle's start/stop system from functioning correctly.

The 2021 Audi Starter-Alternator 27BQ service action aims to resolve issues where a faulty starter-alternator might inhibit the start/stop functionality. While the vehicle's emissions still remain within certification standards, a non-functional start/stop system could lead to increased CO2 and other emissions when the vehicle is stopped. This update to the service action expands its scope to include additional vehicles and provides revised instructions for dealerships.

What is Emissions Service Action 27BQ?

Emissions Service Action 27BQ is a manufacturer-initiated program designed to address a specific component issue. In this case, it concerns the starter-alternator in certain 2021 Audi models. The starter-alternator is a key component in modern vehicles, especially those equipped with start/stop technology, as it manages both engine starting and electrical power generation. When this component is defective, it can directly impact the vehicle's ability to seamlessly shut off and restart the engine at stops, which is crucial for fuel efficiency and reducing emissions.

Owner Notification and Next Steps

Audi plans to notify owners of vehicles included in this second wave of the 2021 Audi Starter-Alternator 27BQ service action. Owner notification for Wave 2 is scheduled to take place in August 2024. If you own one of the affected 2021 Audi models, you should expect to receive a notification letter around this time.

Once notified, owners should contact their authorized Audi dealership to schedule an appointment for the starter-alternator replacement. This repair will be performed at no cost to the owner, as it falls under a manufacturer's service action.

Important Notes for Owners

Audi dealerships have been instructed to thoroughly review the revised circular related to this campaign. This ensures that all personnel involved in campaign-related responsibilities are aware of the updated procedures and vehicle lists. Owners should be aware that this is a proactive measure by Audi to maintain vehicle performance and emissions standards.

Repair Procedure Summary

The core of Emissions Service Action 27BQ involves the replacement of the defective starter-alternator. While specific detailed repair steps are not provided in this particular revision notice, the general procedure will include removing the existing faulty starter-alternator and installing a new, updated unit. This process will restore the proper function of the start/stop system and ensure the vehicle continues to meet its designed emissions profile.

NHTSA ID: 11007370