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Technical Service Bulletin

66 A4 8W: noises when folding exterior mirrors in/out

Transaction No.: 2067558/2
Release date: Feb 12, 2026

Condition
Model{s) Year(s) VIN Range Vehicle Specific Equipment
AA, A4 ee and | 5020 - 2024 Al Not applicable
REVISION HISTORY
Revision Date Purpose
2 - Revised title (Updated text)
Revised header (Updated model code structure)
Revised Condition (Updated text, added model table, added documentation
requirement)
Revised Technical Background (Updated text)
Revised Production solution (Updated text)
Revised Service (Updated, change to image configuration, add documentation
requirement)
Revised Warranty (Updated SRTs)
1 07/15/2022 Initial publication
Customer states:

Unpleasant noise when folding the electric exterior mirrors in/out.

Workshop findings:

Unpleasant noise when folding the electric exterior mirrors in/out. Spring is running dry.

Technical Background

[0]

Documentation required

When the electric exterior mirrors are
folded in/out, the spring assembly that
is secured and pre-tensioned between
two plastic washers is guided/rotated
by the drive motor via a bearing
washer positioned underneath.
Insufficient lubrication between the
spring and the bearing washer leads
to a “slip-stick effect”. This effect
creates a corresponding noise that
sounds very unpleasant to the
customer.

Figure 1. Interior construction of drive unit for mounting of exterior mirror
housing.

Production Solution

Optimized process.

Service

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, chassis number,
engine/motor and gearbox code, PR number(s), part number, software version, code etc.) apply exactly. Otherwise,
this solution will not eliminate the problem and repeat repairs may be necessary. In such a case, we may reject the
warranty claim and redebit the parts.

1. Remove the cover of the j '
exterior mirror unit as described §*~_, q
in the Workshop Manual. La Sa a

Chapter: Body / General body ay "

|
repairs, exterior / Rep. gr. 66 | “ie
* at

Exterior equipment / Exterior
1

mirrors Is P @ ‘
. ™ 13
3
‘"

2. Ifthe customer reports the
complaint, apply special spray
G 052172M2 to the operating
area (press the nozzle firmly
twice), as shown in Figure 3.

ly

Figure 3. Application of special spray G 052172M2.

When billing, please always attach photos that clearly show the complaint to DOC-IT. To ensure a reference to the
vehicle, the image/video must:

° Include the VIN and date.
. Must not be edited.

* Should be in focus and taken with sufficient light. A high resolution is not necessary.

If appropriate, please mark the location of the problem so that parts analysis has a clear reference to the complaint.
Please ensure that the photo documentation does not show any people and/or face, license plates, or customer
data.

Warranty
Claim Type: - If vehicle is outside any warranty, this Technical Service Bulletin is informational
only.
Service Number: 6655
Damage Code: 0020

Labor Operations:

Remove and install electric exterior mirror
housing

6655 1900 See SRT with
associated operations

Remove and install 2 electric exterior mirror
housings

6655 2099 60 TU

Modify electric exterior mirror housing

6689 5099 10 TU

Claim Comment:

As per TSB 2067558/2

All warranty claims submitted for payment must be in accordance with the Audi Warranty Policies and Procedures
Manual. Claims are subject to review or audit by Audi Warranty.

Required Parts and Tools

Always check with your Parts Department and/or ETKA for the latest information and parts bulletins.

Part Number | Part Description

Quantity

G052172M2

Special Lubricant

0.1

Additional Information

All parts and service references provided in this TSB (2067558) are subject to change and/or removal.

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