2021-2025 Audi Pre Sense Warning DTC B130474 / B130574

Symptoms

Owners of certain 2021-2025 Audi models may experience a "pre sense message" appearing in the instrument cluster shortly after driving off. This issue can also be accompanied by problems with the vehicle's assist systems. These symptoms are often sporadic and may temporarily resolve by switching the ignition off and on again.

Fault Codes / DTCs

When the "pre sense message" appears, the airbag control module (address word 0015) may store one or both of the following Diagnostic Trouble Codes (DTCs):

• B130474: Front belt tensioner, actuator deviates
• B130574: Front belt tensioner, actuator deviates

Diagnosis and Trigger Conditions

Audi vehicles are equipped with safety belts featuring reversible belt tensioners designed to tighten the belt at the start of driving or under certain conditions, ensuring the belt rests closer to the body. The issue arises when the safety belt tightens immediately after driving off, or after unfastening and refastening the seat belts.

If the driver repeatedly loosens the seat belt while the tensioner is actively trying to tighten it, after approximately five seconds, the "pre sense message" will appear, and the DTCs B130474 / B130574 will be stored in the airbag control module.

Important Warnings for Owners

Audi Technical Service Bulletin 2062974/4 emphasizes several crucial points for both technicians and owners:

• Do Not Replace Components: The TSB explicitly states, "Components must not be replaced." This indicates that the issue is not due to a faulty part requiring replacement.
• Specific Application: This repair procedure should only be carried out if the customer's complaint precisely matches the description in the TSB and all vehicle-specific criteria (model, type, chassis number, engine/motor, gearbox code, PR number, part number, software version, etc.) are met. Applying this solution incorrectly will not resolve the problem and may lead to warranty claim rejections.
• Warranty Claims: For any warranty claims, a photo clearly showing the complaint must be attached. This photo must include the chassis number and date, be unedited, in focus, well-lit, and should not show any persons, faces, vehicle registration numbers, or customer data.

Repair Procedure Summary

According to Audi Technical Service Bulletin 2062974/4, the resolution for the sporadic "pre sense message" and associated DTC B130474 or B130574 is straightforward:

1. Confirm Complaint: Verify that the customer's reported symptoms align with the description provided in the TSB.
2. Delete Stored Entries: The primary repair involves deleting the stored event memory entries (DTCs) from the airbag control module.

No parts replacement is required for this specific issue.

Owner Action and Warranty

If your 2021-2025 Audi is displaying a "pre sense message" or you suspect issues related to DTC B130474 or B130574, you should contact your authorized Audi dealership. Explain the symptoms you are experiencing, noting if they are sporadic or resolve after cycling the ignition. The dealership will use Technical Service Bulletin 2062974/4 to diagnose and address the issue.

This TSB, identified by Service Number 6913 and Damage Code 0040, provides labor operations for diagnostic time and deleting fault codes. If your vehicle is outside of its warranty period, this Technical Service Bulletin serves as informational guidance, and costs may apply. Warranty claims are subject to review based on Audi's policies and procedures.