2021-2023 Audi Refueling Nozzle Shutoff TSB

Owners of various 2021-2023 Audi models may experience a frustrating issue during refueling: the gas pump nozzle repeatedly shuts off or prevents the fueling process from starting properly. This condition, known as "difficult refueling - gas station pump clicks off before tank is full," is addressed by Audi Technical Service Bulletin (TSB) 2079903/1.

Symptoms

Customers report difficulty refueling their vehicle. The primary symptom is that the fuel nozzle repeatedly shuts off during refueling, or the fueling process cannot be initiated properly. This can lead to extended time at the pump and an inability to fill the fuel tank completely.

Workshop Findings

Audi's workshop findings indicate that this issue is typically caused by the high flow velocity of certain fuel pump nozzles. This high flow can lead to a temporary pressure build-up or bottlenecks within the tank's venting system. The increased pressure then triggers the premature shutoff of the fuel nozzle, interrupting the refueling process. Importantly, Audi states that this is a characteristic of the refueling system design and is not an indication of a fault or component failure.

Important Warnings

Audi TSB 2079903/1 provides crucial guidance for both technicians and owners:

• "Do not replace any components for this issue." This explicitly states that no parts replacement is necessary, as the condition is not due to a defect.
• "This TSB is informational only and not applicable to any Audi Warranty." This clarifies that the bulletin serves to inform about a known characteristic rather than a repair covered under warranty.

These warnings are vital for owners to understand, as they prevent unnecessary repairs or charges for a condition that is considered normal operation under specific circumstances.

Service Recommendation for Audi Refueling Nozzle Shutoff

If you encounter the Audi refueling nozzle shutoff problem, Audi recommends the following steps:

1. Try another fuel station or a different nozzle: Advise trying a different fuel station or a different type of nozzle (specifically, non-Healy or other dispenser types) at the same station. Different pump designs can have varying flow rates and nozzle characteristics that may alleviate the pressure build-up.
2. Verify refueling can be completed elsewhere: Confirm that the vehicle can be refueled successfully at an alternative station. This helps to confirm that the issue is related to specific pump characteristics rather than a vehicle fault.

Since this is not considered a fault, there is no repair procedure involving component replacement. The solution focuses on adapting to the external fueling conditions.