2021-2026 Audi Q8 Rear Compartment Noise TSB 2067759/4

Owners of 2021-2026 Audi Q8 vehicles equipped with the V6 3.0 TFSI engine may notice an unusual Audi Q8 ticking thumping noise coming from the rear passenger compartment. This issue, detailed in Technical Service Bulletin (TSB) 2067759/4, describes a specific vibration that can lead to audible disturbances within the vehicle cabin.

Symptoms

Customers typically report a distinct Audi Q8 ticking thumping noise that is most noticeable when sitting in the right rear seat. This noise primarily occurs when the vehicle is at idling speed. The sound can be persistent and may cause discomfort for occupants.

Diagnosis / Trigger Conditions

Workshop findings indicate that the root cause of the Audi Q8 ticking thumping noise is the activated charcoal filter solenoid valve (N80). This component vibrates, and these vibrations are transmitted to the activated charcoal filter line, resulting in the audible ticking and/or thumping sound. Technicians should verify these conditions to ensure the TSB applies.

Important Warnings

Audi emphasizes the importance of proper diagnosis before proceeding with any repair. The TSB states: "Try to reproduce the customer complaint (based on the description/cause of the issue), so that it can be clearly assigned to this TSB. The following repair must only be carried out if all the criteria (model/type, vehicle identification number, engine/gearbox code, PR number(s), part number, software version, code etc.) apply exactly. Otherwise this service solution will not eliminate the problem, and repeat repairs may be necessary. In such a case, we may reject the warranty claim and charge back the cost of the parts."

Repair Procedure Summary

To address the Audi Q8 ticking thumping noise, the repair involves fitting specialized sleeves onto the activated charcoal filter line. The procedure is as follows:

1. Sleeves with part number 4KD 201 255 are to be installed onto the activated charcoal filter line, identified by part number 4M0 201 995 T. Figures in the TSB illustrate the sleeve and its installation location.
2. The exact number of sleeves required varies depending on the vehicle's equipment version, specifically its PR (production reference) number. Depending on whether the vehicle has air suspension and/or rear wheel steering, 6, 8, or 10 sleeves may be necessary. Technicians must consult the provided overviews in the TSB to determine the correct quantity and placement for each specific vehicle configuration.

Required Parts

To perform this repair, the following part is needed:

• 4KD 201 255: Sleeve (Quantity: 6, 8, or 10, depending on PR number)

The activated charcoal filter line itself, part number 4M0 201 995 T, is the component receiving the sleeves, not a replacement part in this procedure.

Owner Action

If your 2021-2026 Audi Q8 exhibits a ticking or thumping noise from the rear passenger compartment, particularly at idle, it is recommended to schedule an appointment with an authorized Audi service center. Inform them about the specific symptoms and mention Technical Service Bulletin 2067759/4. The TSB indicates that if the vehicle is outside of warranty, this information is for informational purposes only, implying potential costs. However, for vehicles under warranty, this repair should be covered. The labor operations associated with this repair include securing the sleeves to the line and performing road tests before and after the service procedure.

This TSB, identified as transaction number 2067759/4, was last revised on March 27, 2026, with previous revisions on December 12, 2023, and May 5, 2023, primarily updating model year visibility and clarifying parts information.

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Source: NHTSA ID: 11030997, TSB 2067759/4