2011-2026 Audi Cigarette Lighter Inoperable TSB

Audi has issued Technical Service Bulletin (TSB) 2010353/6 to address common problems with the cigarette lighter and 12V power sockets in a wide range of its vehicles. This TSB provides crucial information for owners experiencing issues such as the cigarette lighter element not ejecting, or the socket being completely inoperable.

The bulletin explains that these problems are typically not due to a manufacturing defect but rather can arise from how the sockets are used, particularly with various 12V adapters.

Symptoms

Owners may notice several issues related to their vehicle's power sockets, indicating an Audi cigarette lighter inoperable condition. These include:

• The cigarette lighter element does not eject after heating.
• The cigarette lighter socket is completely inoperable, providing no power.
• The center console 12V socket shows no function.
• The cigarette lighter or 12V socket feels loose, suggesting a component issue.
• A fuse for the cigarette lighter has tripped, even if the wiring appears intact.

It's important to note that this issue typically does not log any relevant Diagnostic Trouble Codes (DTCs).

Diagnosis / Trigger Conditions

The TSB identifies specific conditions that lead to these problems. The primary cause is the use of various 12V electrical adapters in the cigarette lighter socket.

• Widened Bi-Metallic Clips: The cigarette lighter socket contains bi-metallic clips (as shown in Figure 1 of the TSB) that can become widened by certain 12V adapters (Figure 2). When these clips are widened, the cigarette lighter insert no longer fits correctly in the socket. This can cause the lighter to pop out too early, before it reaches the necessary temperature to ignite.
• Overheating Protection: If an owner attempts to prevent the lighter from popping out by holding it down manually (Figure 4), the cigarette lighter can overheat. Audi cigarette lighters are equipped with an overheating protection measure. This protection mechanism will trip the vehicle's fuse, permanently disabling the cigarette lighter to prevent further damage.
• High-Wattage Devices: Using electrical equipment with a power rating exceeding 100 watts in the cigarette lighter socket can also trip the vehicle fuse. The only exception mentioned is the compressor found in the breakdown set, which is designed for this socket.

Understanding the Issue and Prevention

This TSB focuses on preventing damage to the cigarette lighter and 12V sockets rather than providing a repair procedure for already damaged components. The core message is about proper usage to avoid the conditions that lead to the Audi cigarette lighter inoperable state.

Audi recommends the following to prevent issues:

• Utilize the Dedicated 12V Socket: If your vehicle is equipped with a separate 12V socket (often found in the center console, as depicted in Figure 5 of the TSB), it should always be used for external electrical equipment. This socket is designed to handle various accessories without affecting the cigarette lighter mechanism.
• Avoid High-Wattage Devices in Cigarette Lighter: Do not use electrical equipment with a power rating greater than 100 watts in the cigarette lighter socket. Overloading this socket can trip the fuse and potentially damage the internal components.

Owner Action

If you are experiencing an Audi cigarette lighter inoperable issue, first check if a fuse has tripped. If replacing the fuse temporarily resolves the issue, it indicates that the underlying cause, such as widened clips or overheating, is still present.

To prevent recurrence and avoid further damage, follow Audi's recommendations:

• Use the dedicated 12V socket for charging phones, GPS devices, or other accessories, if your vehicle has one.
• Do not use high-power electrical devices in the cigarette lighter socket, as this can trip the fuse and activate the overheating protection.
• Avoid holding the cigarette lighter down manually, as this can lead to overheating and permanent disablement.

It is important to note that damage resulting from these conditions is considered due to