2023 Audi Q7, Q8 Rear Brake Carrier Bolt Issue

Why This Matters: The Risk of Loose Brake Carrier Bolts

Audi has identified a potential safety concern involving the rear brake carrier bolts in a limited number of 2023 Audi Q7 and Q8 vehicles. These bolts are critical components that secure the rear brake calipers. If non-hardened bolts were used during manufacturing, they could loosen over time. Loose brake carrier bolts can compromise the stability and proper function of the brake calipers, potentially affecting braking performance and increasing the risk of an accident.

What's Being Addressed: Service Action 47T4

This issue is being addressed under Service Action 47T4, which focuses on replacing the rear brake carrier bolts. The concern is that certain bolts used may not have been sufficiently hardened, making them susceptible to loosening. This service action aims to proactively replace these potentially problematic bolts to ensure the long-term safety and reliability of the braking system in affected vehicles.

Important Warning for New Car Buyers

Audi has issued a critical directive to dealerships regarding this issue: "Repair every affected inventory vehicle before delivery to consumers." This means that any new 2023 Audi Q7 or Q8 vehicles currently in dealer inventory that are identified as having this condition must have the rear brake carrier bolts replaced before they are sold or delivered to customers. This ensures that new owners receive their vehicles with the necessary safety correction already performed.

Repair Procedure Summary

The repair for Service Action 47T4 involves the replacement of the rear brake carrier bolts. This procedure ensures that properly hardened bolts are installed, preventing the potential for them to loosen over time. Dealership technicians will follow specific instructions detailed in Audi's ELSA/ServiceNet system for complete repair and claiming procedures. There will be no special parts allocation; parts will be managed through a standard free order process.

Owner Action

If you own a 2023 Audi Q7 or Q8, it is recommended to contact your authorized Audi dealership immediately to schedule an appointment for Service Action 47T4. Audi began mailing notifications to owners in February 2023. The repair, which involves replacing the 2023 Audi Q8 rear brake carrier bolts, will be performed at no cost to the owner.

Source: NHTSA ID: 10232110