48 Noises From The Engine Compartment Are Heard Inside The Vehicle (Via The Intermediate Steering Shaft) (GROUP 48, NO. 23-50)
Reference number: GROUP 48, NO. 23-50
Supersedes refnos: 2063528, 2063528/1, 2063528/2, 2063528/3, 2063528/4, GROUP 48, NO. 21-04, GROUP 48, NO. 21-13, GROUP 48, NO. 22-28
48 NOISES FROM THE ENGINE COMPARTMENT ARE HEARD INSIDE THE VEHICLE (VIA THE INTERMEDIATE STEERING SHAFT)
TECHNICAL SERVICE BULLETIN
| AUDI: | 2017-2024 A4 allroad, A4, and Q7; 2018-2024 S4, A5, A5 Cabriolet, A5 Sportback, S5, S5 Cabriolet, and S5 Sportback; 2018-2019, 2021-2024 RS 5; 2019-2024 Q8; 2019 2021 - 2024 RS 5 Sportback; 2020-2024 SQ7, SQ8, and RS Q8 |
| GROUP: | 48 - Steering |
SERVICE INFORMATION
48 23 50 2063528/4 June 29, 2023. Supersedes Technical Service Bulletin Group 48 number 22-28 dated April 28, 2022, for reasons listed below.
| Model(s) | Year | VIN Range | Vehicle-Specific Equipment |
|---|---|---|---|
| A4 allroad, A4, and Q7 | 2017 - 2024 | All | Not Applicable |
| S4, A5, A5 Cabriolet, A5 Sportback, S5, S5 Cabriolet, and S5 Sportback | 2018 - 2024 | ||
| RS 5 | 2018 - 2019 2021 - 2024 |
||
| Q8 | 2019 - 2024 | ||
| RS 5 Sportback | 2019 2021 - 2024 | ||
| SQ7, SQ8, and RS Q8 | 2020 - 2024 |
CONDITION
| Revision | Date | Purpose |
|---|---|---|
| 4 | - | Revised header (Added Model Year) Revised Warranty (Informational only TSB) |
| 3 | 04/28/2022 | Revised header (Added Model Year) |
| 2 | 11/06/2021 | Revised Warranty (Updated Labor Operation) |
Customer states:
- Noises can be heard from the engine compartment/front end when accelerating between 1500 and 2300 rpm. The noises are described as combustion noises, or as clattering or ticking from the injectors.
TECHNICAL BACKGROUND
The cause of the noise is not necessarily related to engine components.
PRODUCTION SOLUTION
Not Applicable
SERVICE
There are multiple causes of noise being transmitted from the engine compartment to the interior of the vehicle.
A possible cause of noise being transmitted from the engine compartment is insufficient noise insulation at the opening for the intermediate steering shaft in the bulkhead.
Therefore, check whether the sealing boot is seated correctly on the intermediate steering shaft and on the bulkhead without any visible gaps (Figure 1).
The noise may also be influenced by the height adjustment of the steering wheel.
WARRANTY
This TSB is informational only and not covered by any Audi warranty.
ADDITIONAL INFORMATION
All parts and service references provided in this TSB (2063528) are subject to change and/or removal.