No. 108-25 Service Bulletin/Repair Instructions

Symptom-based workshop manual
Service

108/25 ENU
6689
6
Squeaking Noise Symptom When Retracting and/or Extending the Rear-view Mirror: Greasing Mirror

Base Seal (SY 108/25)

Model Line:
Macan (XAB)
Model Year:
As of 2024
Concerns:
Rearview mirror
Symptom:
Squeaking noises can be heard when retracting and/or extending the rear-view mirrors.
Cause:
The noises can be caused by a lack of lubricating film on the mirror base gasket.
Remedial

Action:
In the event of a complaint, check the mirror base seal and grease or replace it, depending on the result of the

check.
Installation

Position:
Installation position of mirror base seal
AfterSales
Jan 12, 2026

Page 1 of 4
6
Service

6689
ENU
Symptom-based workshop manual
108/25
Required parts and materials

Materials:
Required materials (usually already available in the Porsche Center):

Part No.

e.g.:

00004330509
Designation

⇒ Krytox lubricant
Quantity

2 grams
Additional parts required if the mirror base seal must be replaced:

Part No.:
Part No.
Designation

– Location
Quantity
9Y0857679
⇒ Seals

– Mirror base, top left
1 piece
⇒ Seals

– Mirror base, top right
1 piece
or

9Y0857680
Required tools

Tools:
•

•
P90999 - Porsche Tester 4

Battery charger with a current rating of at least 90 A and a current and voltage-controlled charge map

for lithium starter batteries, e.g. VAS 5908 battery charger 90 A. For further information about the

battery chargers to be used, see the corresponding Workshop Manual. ⇒ Workshop Manual '270689

Charging vehicle electrical system battery'
Checking, greasing or replacing mirror base seal

Work Procedure: 1
Jan 12, 2026

Page 2 of 4
Þ Mirror base seal -1-.

Check mirror base seal ⇒
AfterSales
Symptom-based workshop manual
Service

108/25 ENU
6689
6
Mirror base seal

1.1
Þ Mirror base seal -2- in and out at the left and right and check for

Guide rearview mirror ⇒

squeaking noises.
1.2
Þ Mirror base seal -2- rearview mirror at the left and right and check the mirror base

Retract ⇒

Þ Mirror base seal -1- in the mirror support ⇒

Þ Mirror base seal -3- for damage.

seal ⇒

Assessment
Action
( )
The mirror base seal is not damaged.
Þ Mirror base seal -1- Clean mirror base

⇒
✗)

(✗
The mirror base seal is damaged.
Replace mirror base seal and grease with

Krytox lubricant.

For work procedure, see: ⇒ Technical

Information '667919 Removing and

installing rear-view mirror housing

(lower part)'
seal and grease with Krytox lubricant.
Information

If the mirror base seal must be replaced, grease it before assembling the rear-view mirror.
Labor position and PCSS encryption

Labor position:
AfterSales
Jan 12, 2026

Page 3 of 4
6
Service

6689
ENU
Symptom-based workshop manual
108/25
APOS
Labor operation
66934941
Reworking left mirror base seal
66934942
Reworking right mirror base seal
66934943
Replacing and reworking left mirror base seal
66934944
Replacing and reworking right mirror base seal
66935040
Reworking left and right mirror base seal
66935042
Replacing and reworking left and right mirror base

seal
I No.
PCSS encryption:

Location (FES5)
66890
Rear mirror
Damage type (SA4)
1071
Tolerance error
Important Notice: Technical Bulletins issued by Porsche Cars North America, Inc. are intended only for use by professional automotive technicians who have attended Porsche service training courses. They are

written to inform those technicians of conditions that may occur on some Porsche vehicles, or to provide information that could assist in the proper servicing of a vehicle. Porsche special tools may be necessary in

order to perform certain operations identified in these bulletins. Use of tools and procedures other than those Porsche recommends in these bulletins may be detrimental to the safe operation of your vehicle, and

may endanger the people working on it. Properly trained Porsche technicians have the equipment, tools, safety instructions, and know-how to do the job properly and safely. Part numbers listed in these bulletins

are for reference only. The work procedures updated electronically in the Porsche PIWIS diagnostic and testing device take precedence and, in the event of a discrepancy, the work procedures in the PIWIS Tester

are the ones that must be followed.
©2026 Porsche Cars North America, Inc.
Jan 12, 2026

Page 4 of 4
AfterSales

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