122-P3B5Q-03

Service
Technical Information
103/19 ENU
4890
4
Noise Symptom - Squeaking While Steering: Checking Installation Position of Dust Boot on
Steering System (SY 103/19)
Vehicle Types:
911 Carrera S (992)/911 Carrera 4S (992)/911 Carrera S Cabriolet (992)/911 Carrera 4S
Cabriolet (992)
Model Year:
2020
Concern:
Power-steering gear
Symptom:
A squeaking noise can be heard from the power-steering gear area or from the steering column while
steering.
Cause:
The dust boot on the power-steering gear may have been pressed in too far during production and as a
result, it may rub against the power-steering gear housing while steering.
Remedial
Action:
In the event of a customer complaint, check the installation position of the dust boot and replace it if
necessary.
Required spare parts and tools
Parts Info:
Part No.
992422573
WHT004955A
Tools:
•
•
•
Designation
— Use
 Dust boot for steering system
Qty.
 Internal hexagon round cheese head bolt
— Universal joint on power-steering gear
1 ea.
1 ea.
Rubber spatula
9900 - PIWIS Tester 3
Battery charger with a current rating of at least 90 A. We recommend VAS 5908 - battery
charger 90A or equivalent, for example
Preparatory work
Work Procedure: 1
2
Turn steering wheel to center position.
Remove front-axle support, see  Workshop Manual '400819 Removing and installing front-axle
support'.
Checking and replacing dust boot on steering system
Work Procedure: 1
Check whether there is a sufficient gap between the dust boot and housing cover bar.
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Service
4890
ENU
103/
19
Technical Information
1.1
If the gap is OK ( Checking dust boot -dimension A-):
The dust boot is not the cause of the squeaking noise — Install front-axle support, see 
Workshop Manual '400819 Removing and installing front-axle support'.
1.2
If the gap is not OK ( Checking dust boot -dimension B-):
The dust boot is causing the squeaking noise. Continue with Step 2.
Checking dust boot
Dimension A – ~ 2 mm
Dimension B – ~ 0 mm
2
Loosen universal joint  Universal joint on power-steering gear -1- from power-steering gear 
Universal joint on power-steering gear -2-.
2.1
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Clean the area around the dust boot, universal joint and steering spindle.
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Technical Information
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103/19 ENU
2.2
Unscrew screw  Universal joint on powersteering gear -3-.
2.3
Pull universal joint off the power-steering
gear.
4890
4
Remove dust boot  Removing dust boot -1-.
Universal joint on power-steering gear
3.1
Loosen the dust boot using a screwdriver
and support the screwdriver at the screw 
Removing dust boot -2- on the housing cover.
3.2
Pull off dust boot by hand.
Removing dust boot
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103/
19
Technical Information
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Check that the shaft sealing ring  Shaft sealing ring
on power-steering gear -1- on the power-steering
gear is completely covered with grease. If there is no
grease, use a rubber spatula to transfer clean grease
from the removed dust boot  Shaft sealing ring on
power-steering gear -2- onto the steering spindle.
5
Install new dust boot.
6
5.1
Position dust boot and push it as far as it will
go onto the power-steering gear by hand.
5.2
Check the gap between the dust boot and
housing cover bar again.
Secure universal joint  Universal joint on
power-steering gear -1- to the power-steering gear
 Universal joint on power-steering gear -2-.
6.1
Move universal joint on the power-steering
gear into installation position.
6.2
Replace screw  Universal joint on power-steering gear -3-.
6.3
Fit and tighten new screw.
Shaft sealing ring on power-steering gear
Initial tightening 20 Nm (15 ftlb.)
Final tightening +90°
Universal joint on power-steering gear
Concluding work
Work Procedure: 1
2
Install front-axle support, see  Workshop Manual '400819 Removing and installing front-axle
support'.
Read out and erase the fault memories of all control units.
 Workshop Manual '9X00IN Basic instructions and procedure for control unit programming using
the PIWIS Tester - section on "Subsequent work"'
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Service
Technical Information
103/19 ENU
4890
4
Invoicing
Invoicing:
For documentation and warranty invoicing, enter the labor operations, PQIS coding and part numbers
specified below in the warranty claim:
APOS
Labour operation
I No.
48900100
Checking power-steering gear (17 TU)
48904900
Reworking power-steering gear (34 TU)
PQIS coding:
Location (FES5)
48900
Power-steering gear
Damage type (SA4)
1015
Gap/air gap too large/too small
Part No.
992422573
WHT004955A
References:
Designation
— Use
 Dust boot for steering system
Qty.
 Internal hexagon round cheese head bolt
— Universal joint on power-steering gear
1
1
 Workshop Manual '400819 Removing and installing front-axle support'
 Workshop Manual '9X00IN Basic instructions and procedure for control unit programming using the
PIWIS Tester'
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.
© 2020 Porsche Cars North America, Inc.
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