2022-2024 Audi High-Voltage Battery Energy Content TSB

Owners of 2022-2024 Audi electric and hybrid vehicles may notice a reduction in their vehicle's electrical range or an increase in petrol consumption for hybrid models. This behavior is often linked to the natural aging of the lithium-ion high-voltage battery, which can lead to a reduction in its energy content.

This Technical Service Bulletin, identified as 93 24 04 2074808/1, provides detailed information for dealerships on how to accurately assess the current energy content of these high-voltage batteries. It also clarifies the conditions under which such an assessment can be covered under warranty.

Important Warnings for Owners

Audi has issued specific guidelines regarding the assessment of high-voltage battery energy content:

• "This technical service bulletin (TSB) only applies to vehicles with an electric drive motor / high-voltage lithium-ion battery (fully electric vehicles and hybrid vehicles)."
• "In this connection, please also observe the model year-specific warranty conditions for hybrid vehicles."
• "If checking the energy content does not reveal any faults covered by the warranty, it is not possible to bill the manufacturer."
• "If the energy content is checked at the customer's request, it is not possible to bill a warranty claim to the manufacturer."
• "Only the 'Battery Health Status (BHS)' and 'Battery Health Certificate (BHC)' tests can be billed under warranty if there is a justified customer complaint. If the energy content is checked at the customer's request, it is not possible to bill a warranty claim to the manufacturer."

Symptoms of Reduced Battery Energy

Owners typically report one or more of the following observations that suggest a decline in their high-voltage battery's energy content:

• "The electrical range has decreased."
• "The vehicle's petrol consumption (hybrid) has increased."
• "I require reliable information about the current status of my vehicle's high-voltage battery so that I can sell the vehicle (for example)."

Dealership technicians, upon investigating these customer concerns, often find that while the customer's statement can be reproduced, there are