2021-2023 Audi Steering Wheel Heating Not Sufficient TSB

Symptoms of Insufficient Steering Wheel Heating

Owners of affected 2021-2023 Audi models may observe the following conditions related to their Audi e-tron steering wheel heating:

• "The steering wheel does not heat up."
• "The steering wheel does not heat up sufficiently."
• "The steering wheel heats up unevenly."
• "It takes a long time for the steering wheel to heat up."

Technical Background on Steering Wheel Heating

Audi Technical Service Bulletin 2065978/1 provides important insights into the operation of the heated steering wheel system. The bulletin explains that variations in heating performance are often normal and not indicative of a fault.

The surface temperature of the steering wheel can vary at different locations due to uneven heat distribution inherent in the design. This can lead to the impression that the Audi e-tron steering wheel heating is insufficient or not working correctly. For instance, the leather near the spokes may feel cooler because some heat dissipates into the spokes.

It can take over 30 minutes for the Heated Steering Wheel to reach its target temperature of approximately 30°C ± 3°C (86°F ± 5°F). The actual warm-up time is significantly influenced by the vehicle's interior temperature and the settings of the heater/air conditioner.

External factors can also affect perceived heating. The top part of the steering wheel (12 o'clock position) can be warmed by sunlight, creating a noticeable temperature difference compared to other areas. Additionally, if the driver consistently holds the steering wheel at the 9 and 3 o'clock positions, these areas will be warmed by their hands, making other areas like 12 and 6 o'clock feel cooler by comparison.

The NTC temperature sensor, located in the foam beneath the cover, measures a temperature of 34°C (93°F) when the desired surface temperature of 30°C (86°F) is reached. This difference in measured versus perceived temperature can also contribute to customer concerns.

Important Warnings for Owners

This Technical Service Bulletin (TSB 2065978/1) is categorized as informational only. It clarifies the normal operating characteristics of the heated steering wheel system.

• Warranty Coverage: This TSB is not applicable to any Audi Warranty. This means that if you experience these conditions, they are generally considered normal operation and will not be covered under warranty as a defect.

What Owners Should Know

If you are experiencing concerns with your Audi e-tron steering wheel heating, it is important to understand that uneven heating, slow warm-up times, and perceived insufficient heat are often normal characteristics of the system. There are no diagnostic trouble codes (DTCs) associated with these conditions, and no specific repair procedure is outlined in this bulletin.

This bulletin serves to inform technicians and owners that the observed behavior is typically within the expected operational parameters of the heated steering wheel system.

Source: NHTSA ID 10207819